To understand why this case matters, it helps to know how vascular tumors of infancy are classified. Hemangiomas are the most common vascular tumors of infancy, and clinicians broadly divide them into infantile hemangiomas, which typically appear after birth and grow during early infancy, and congenital hemangiomas, which are fully formed by the time a baby is born. Congenital hemangiomas are themselves split into three behavioral categories: rapidly involuting congenital hemangiomas, which regress quickly after birth; non-involuting congenital hemangiomas, which persist indefinitely; and partially involuting congenital hemangiomas, which shrink somewhat but never disappear entirely. This three-way classification, formalized in influential work by Mulliken and Enjolras, reflects the fact that these tumors behave in fundamentally different ways despite looking superficially similar under the microscope.

The genetic underpinnings of congenital hemangiomas have become clearer in the past decade. Researchers have identified somatic activating mutations in the GNAQ and GNA11 genes in these tumors — alterations that occur in the tumor tissue itself rather than being inherited, and that drive the abnormal proliferation of blood vessel cells. This molecular signature distinguishes congenital hemangiomas from infantile hemangiomas, which follow a different biological program altogether. One of the classic diagnostic markers separating the two is GLUT1, a glucose transporter protein that is abundantly expressed in infantile hemangiomas but characteristically absent in congenital ones. Immunohistochemical staining for GLUT1, first described as a diagnostic marker for juvenile hemangiomas in landmark work published in 2000, remains a cornerstone of daily practice in distinguishing cutaneous vascular anomalies.

Most congenital hemangiomas appear on the skin and soft tissues of the head and neck or around the joints of the extremities — the periarticular regions. A RICH on a scalp or a knee is unusual enough; a RICH inside the brain, in the suprasellar region, is a genuine medical rarity. The suprasellar region is one of the most crowded and consequential addresses in the human brain. It houses the pituitary gland, the optic chiasm, the hypothalamus, and the circle of Willis, the arterial ring that supplies blood to much of the cerebrum. Tumors in this location — whether congenital craniopharyngiomas, hypothalamic hamartomas, or other lesions — can threaten vision, hormone regulation, and core metabolic functions, and they often demand delicate neurosurgical intervention. The prospect of a vascular tumor growing there before birth is the kind of finding that sets off immediate alarm bells in any fetal imaging suite.

That is precisely what makes the new report so valuable. The lesion was first detected on prenatal ultrasound, the workhorse of fetal surveillance, and then further characterized with fetal MRI, which offers superior soft-tissue contrast and can help differentiate vascular lesions from other fetal brain tumors. Fetal brain tumors themselves are exceedingly rare, and imaging them well is a technical challenge; a dedicated review of fetal brain tumor imaging published in Pediatric Radiology in 2020 underscored how difficult it can be to pin down a precise prenatal diagnosis. In this case, the imaging features and clinical course pointed toward a RICH, and the diagnosis was confirmed by the tumor’s behavior after birth: serial postnatal ultrasound and MRI demonstrated rapid interval regression, the hallmark of the rapidly involuting subtype.

The natural history of RICH tumors is what gives this case its happy ending. These tumors are fully grown at birth — they do not exhibit the postnatal proliferation phase that defines infantile hemangiomas — and then they begin to shrink, often dramatically, during the first months of life. Many resolve completely, sometimes leaving behind only a subtle patch of atrophic skin or residual telangiectasias when they occur on the skin. The speed of involution can be striking, which is how the subtype earned its name. But the behavior of a RICH in the brain is far less well charted than its cutaneous counterpart, simply because so few intracranial cases have been reported. Prior reports have described RICH lesions of the skull and the hand, and one team documented prenatal diagnosis and postnatal follow-up of a RICH in this same journal more than a decade ago, but suprasellar examples remain vanishingly scarce.

The clinical stakes of such a diagnosis are considerable. Congenital hemangiomas are usually benign and self-limited, but they are not always harmless. Rare catastrophic cases have been described in which congenital hemangiomas caused severe coagulopathy — a consumption of clotting factors by the tumor’s high-flow vasculature — leading to fatal cardiac failure in newborns. High-flow vascular lesions in the brain carry additional risks, including hemorrhage and mass effect on critical structures. For families and clinicians facing a prenatal diagnosis of a suprasellar mass, the differential diagnosis includes lesions with far grimmer prognoses, and the temptation toward aggressive intervention can be strong. A documented case in which watchful waiting was rewarded by spontaneous, imaging-confirmed regression provides a crucial data point: not every prenatal brain mass is a surgical emergency, and accurate diagnosis can spare an infant invasive procedures.

That said, the report also implicitly acknowledges that not all congenital hemangiomas can be left alone. When these tumors cause serious complications, medical therapy has entered the picture in recent years. Sirolimus, an mTOR inhibitor better known as an immunosuppressant, has emerged as a treatment option for problematic vascular anomalies, and a 2026 report in Pediatric Blood & Cancer described the successful management of a refractory congenital hemangioma with sirolimus in a neonate. The decision matrix for a neonatal vascular tumor thus spans a spectrum from simple observation to pharmacotherapy to, in select cases, surgery — and the choice hinges on accurate subtype classification, which is exactly where detailed imaging documentation like that in this new case report earns its keep.

For the radiology community, the case adds a rare entry to the atlas of fetal and neonatal intracranial vascular tumors, complete with the kind of longitudinal imaging follow-up that textbooks crave. For the broader public, it is a reminder of how much the prenatal imaging revolution has changed medicine: a tumor invisible to any previous generation of doctors is now spotted on ultrasound before a baby takes its first breath, characterized by MRI in utero, and tracked noninvasively as it resolves. The researchers reported no competing interests, obtained written informed consent from the child’s parents, and noted that institutional review board approval was not required for this single case report under institutional policies. The authors — Noman Khan, Rafaela Minguetti, Alexandra J. Borst, Kimberly M. Hamilton, and Carolina V. Guimaraes — frame the contribution around the clinical course and imaging features of the lesion, offering colleagues worldwide a template for recognizing a diagnosis that most will encounter only once, if ever, in their careers.

Behind the technical narrative lies a genuinely moving human story: parents who learned before birth that their child had a mass in one of the most delicate regions of the brain, and who then watched, scan by scan, as that mass melted away on its own. Medicine’s growing ability to distinguish tumors that threaten from tumors that retreat — using imaging signatures, immunohistochemical markers like GLUT1, and now somatic genetics — is quietly transforming outcomes for infants like this one. In an era when the word tumor triggers instinctive dread, this suprasellar RICH stands as a counterexample: a lesion that arrived fully formed, announced itself on fetal MRI, and then, true to its name, vanished in a rush — leaving behind only images, data, and a rare lesson in the power of knowing when to do nothing at all.

Subject of Research: A rare case of rapidly involuting congenital hemangioma in the fetal suprasellar brain region documented by prenatal and postnatal imaging

Article Title: Rapidly involuting congenital hemangioma of the suprasellar region

Article References: Khan, N., Minguetti, R., Borst, A. J., Hamilton, K. M., & Guimaraes, C. V. (2026). Rapidly involuting congenital hemangioma of the suprasellar region. Pediatric Radiology. https://doi.org/10.1007/s00247-026-06780-2

Image Credits: AI Generated

DOI: 10.1007/s00247-026-06780-2

Keywords: congenital hemangioma, RICH, suprasellar region, fetal MRI, prenatal diagnosis, pediatric radiology, vascular tumors, GLUT1, GNAQ mutation, infantile hemangioma, spontaneous regression, neonatal imaging

A new commentary published in Educational Psychology Review by Ronnel B. King of The Chinese University of Hong Kong and Faming Wang of Zhejiang University argues that the scientific field charged with understanding this problem is itself profoundly unbalanced. In their analysis of a topical collection on school belonging curated by Christopher S. Rozek and Carlton J. Fong, the authors acknowledge genuine advances—including new conceptual frameworks, systematic reviews, and meta-analyses showing how belonging is shaped by racialized climates, classroom motivation processes, gendered patterns, institutional policies, spatial arrangements, cultural beliefs, and peer cultures. Yet they contend that the entire evidence base rests on a strikingly narrow geographic foundation, one dominated by what psychologists call WEIRD societies: Western, educated, industrialized, rich, and democratic contexts.

The technical scale of this imbalance is difficult to overstate. Drawing on three established cultural taxonomies—Schwartz’s values framework, Inglehart and Welzel’s cultural map, and the United Nations regional classification—the authors mapped the locations of studies in the collection’s systematic reviews and meta-analyses. Across K–12 STEM classrooms, postsecondary settings, and studies of school racial climate, the vast majority of empirical work is anchored in the United States and a small cluster of other WEIRD countries, with only scattered studies from non-WEIRD contexts such as Turkey, the Philippines, South Africa, China, and Ethiopia. Entire world regions, including much of Latin America, South Asia, Africa, and the Middle East, are virtually absent from the cumulative record. Even the two most comprehensive quantitative syntheses of school belonging in K–12 settings reproduce this skew, relying overwhelmingly on samples from the United States, Australia, New Zealand, Canada, and Western Europe.

As the authors point out, extrapolating conclusions from studies based on roughly 12 percent of the world’s population to the remaining 88 percent risks mistaking culturally situated patterns for universal principles. This matters because theories derived from settings marked by affluence, political stability, and individualism may simply fail to capture the conditions students face in contexts shaped by economic precarity, societal conflict, natural disasters, colonial legacies, or highly stratified educational systems. The commentary also highlights an imbalance in the power structures surrounding research itself: the infrastructure needed to produce psychological science is often absent in Global South societies, reinforcing a cycle in which the questions asked, the samples studied, and the conclusions drawn all default to WEIRD assumptions.

The authors’ analytical framework identifies three distinct channels through which culture can shape school belonging, and their re-analysis of the PISA 2018 dataset illustrates each. The first is level-oriented difference: countries vary dramatically in average belonging, with nations such as Spain and Austria scoring above the OECD average, while Russia, Brunei Darussalam, and the Philippines fall alarmingly below it. These rankings can help policymakers pinpoint where interventions are most urgently needed. The second is structure-oriented difference: the association between belonging and other constructs varies across cultures. Although school belonging predicted better academic achievement in nearly every country examined, the strength of that correlation differed significantly. Consistent with this, earlier work by Goodenow and Grady found belonging was more strongly tied to academic outcomes among Latine students than among Black and White students, while a meta-analysis by Yuen and Wu showed that the link between belonging and psychological well-being was stronger in individualistic than in collectivist cultures.

The third and most radical channel is meaning-oriented difference. Much belonging research adopts what cross-cultural psychologists call an etic approach, testing Western-derived concepts worldwide through translated instruments that assume conceptual equivalence. The commentary argues for embracing emic approaches—recovering culture-specific meanings. Drawing on Li’s landmark prototype analysis of learning, which found that Americans conceptualize learning primarily as a cognitive process while Chinese students associate it with social and moral development, the authors show how simply translating Western scales can miss profound differences. In Confucian-influenced cultures, constructs such as ren (humaneness) and he (harmony) suggest belonging may be experienced less as personal fit and more as fulfilling roles, maintaining harmony, and being a morally responsible group member. Philippine indigenous psychology offers kapwa, a shared inner self implying that belonging is mutual care within a moral community; southern African ubuntu and Japanese wa and amae point in similarly relational directions. A student who rarely speaks in class may be enacting belonging through restraint rather than disengagement—something Western measures of overt participation could never detect.

The commentary also pushes the field to widen what counts as culture beyond nationality and race, treating religion, region, and social class as cultural ecologies in their own right. Religious communities organize authority, gender roles, and moral obligation in distinct ways, creating tensions for Muslim students in secularizing Western Europe or non-Christian students in faith-based schools. Regional cultures matter too: research on cultures of honor in the U.S. South links norms of reputation and retaliation to school safety, while Greenfield’s gemeinschaft–gesellschaft framework illuminates the dislocation felt by rural students—whether in the Philippines, Vietnam, or Aboriginal Australia—who cross into urban schools valorizing assertiveness and cosmopolitan habits. Social class, meanwhile, functions not merely as a demographic risk factor but as a system of culturally shaped norms; working-class and first-generation students often bring communal, prevention-focused motivations into institutions that implicitly reward independent, promotion-focused goals, generating a cultural mismatch that quietly erodes belonging.

Culture also operates across nested levels, from individual values and classroom peer norms through school climate and national value orientations to global ideologies of meritocracy and neoliberalism. The authors’ own ecological analysis of Hofstede’s cultural dimensions found that countries higher in power distance reported lower school belonging, while individualism, uncertainty avoidance, and indulgence showed weaker positive associations. Crucially, the commentary warns that theories developed in postmaterialist societies—preoccupied with self-actualization and subjective fit—may be tone-deaf to more basic belonging concerns elsewhere: whether schools can reliably serve their students amid conflict, corruption, earthquakes, typhoons, and floods. UNICEF estimates that extreme climate events disrupted the education of at least 242 million students across 85 countries in 2024 alone, yet such disruptions are virtually absent from mainstream belonging research.

From this diagnosis flows a concrete methodological program. The authors recommend broader cross-cultural sampling, ideally spanning seven or more countries across the world’s major cultural regions, and note that existing resources like PISA and TIMSS make this more feasible than many researchers assume. They call for explicit specification of multilevel models—single-level, cross-level direct effects, or cross-level moderated effects—so that the level of culture being theorized is always clear. They urge rigorous attention to measurement invariance, arguing that cross-cultural mean comparisons are untenable unless researchers demonstrate that instruments measure the same construct across groups through sequential tests of configural, metric, and scalar equivalence, while cautioning that conventional invariance cutoffs may be unrealistic when many cultures are included. Finally, they advocate methodological pluralism, including qualitative and mixed methods to surface emic meanings and cultural manipulation experiments—such as priming independent or interdependent self-construals—that can establish causal roles for specific cultural elements that purely correlational designs cannot.

The stakes of this agenda extend well beyond academic housekeeping. Culturally responsive interventions cannot be exported wholesale from U.S. universities; asset-based pedagogies affirming students’ languages and communities, culturally sustaining approaches that remove the trade-off between authenticity and belonging, and institutional assessments of belonging affordances all point toward designs rooted in local realities rather than one-size-fits-all models. The authors are equally emphatic that a cultural lens should deepen rather than displace intersectional analysis of race, gender, class, disability, sexuality, and migration status—since what it means to be racialized, gendered, or poor varies dramatically across societies with different histories of slavery, colonialism, and stratification. Counteracting WEIRD bias, they conclude, will require more equitable collaborations with Global South scholars, investment in diverse research settings, and treating local knowledge as central to theory building. Because the need to belong may be a universal human motive, but the meaning of belonging is not, students everywhere deserve a science built with the whole world in view.

Subject of Research: Cultural and cross-cultural influences on students' sense of school belonging

Article Title: Culture and school belonging: Towards a global research agenda

Article References: King, R. B., & Wang, F. (2026). Culture and school belonging: Towards a global research agenda. Educational Psychology Review, 38(1), Article 121. https://doi.org/10.1007/s10648-026-10213-9

Image Credits: AI Generated

DOI: 10.1007/s10648-026-10213-9

Keywords: school belonging, WEIRD bias, cross-cultural psychology, educational psychology, PISA, measurement invariance, emic constructs, intersectionality, social class, culture, Global South, research methods

When a ceramic vessel sinks and settles into the seafloor, it becomes part of a complex and dynamic chemical system. Seawater, rich in dissolved salts, percolates through sediments that are typically depleted in oxygen and populated by communities of sulfate-reducing and other anaerobic bacteria. These microorganisms metabolize sulfate ions and generate hydrogen sulfide, which reacts with dissolved iron released from corroding iron fastenings, cannonballs, ballast and hull fittings scattered across the wreck site. The result is the precipitation of iron sulfides and, after subsequent oxidation when artifacts are disturbed or exposed to oxygenated water, a spectrum of iron corrosion products including oxyhydroxides such as goethite and lepidocrocite. Over decades and centuries, these products accrete into dense, cemented masses known as concretions, which frequently fuse ceramics, metals and sediment into a single hard conglomerate that must be mechanically separated during excavation or conservation.

The research team examined fragments of bluish white glaze ceramics recovered from marine contexts, characterizing both the glaze itself and the iron-rich concretion material in intimate contact with it. Using a combination of analytical techniques, including optical microscopy, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, and micro-Raman spectroscopy, the investigators mapped the chemistry and microstructure of the glaze-concretion interface at high spatial resolution. Their goal was to determine whether the concretions were simply juxtaposed against the ceramic surface or whether a genuine chemical interaction had occurred between the two materials during burial, and if so, what consequences that interaction held for the preservation of the glaze.

The answer was unambiguous: the contact zones between iron-rich concretions and bluish white glaze displayed distinctive localized damage that was absent, or far less developed, on adjacent glaze surfaces that had not been in contact with iron-bearing material. The degradation took several characteristic forms. The researchers documented pitting and etching of the glaze surface, accompanied by enrichment of iron in the outermost layers of the glaze where concretion material had been in direct contact. Cracks and micro-fissures propagated from the interface into the glaze body, and in severely affected areas the glassy surface had lost its integrity entirely, exposing the underlying ceramic body to further chemical attack. The distribution of this damage, tightly correlated with the extent and thickness of the iron-rich deposits, provided compelling evidence of a causal relationship rather than a coincidental association.

The underlying chemistry, as the authors explain, is rooted in the redox-active nature of iron and the sensitivity of glaze to sustained chemical stress. Iron corrosion products, particularly under the alternating reducing and oxidizing conditions that can develop within sediments and after recovery, undergo cyclic transformations. Reduced iron species such as magnetite and iron sulfides can oxidize to form ferric oxyhydroxides, a process that generates acidity and produces expansive corrosion layers capable of exerting mechanical stress on adjacent surfaces. Glazes are essentially thin glass coatings, typically based on a silicate network modified with fluxes such as calcium, potassium and sodium, and reinforced optically by the presence of colorants and opacifiers. The bluish white appearance prized in many porcelains arises from the interaction of cobalt pigments and opacifying phases with the glaze matrix. This glassy layer, while chemically more durable than the porous ceramic body beneath it, is nonetheless vulnerable to attack by acidic solutions, by complexing agents and by the mechanical wedging action of growing corrosion products.

In the concretion environment, the researchers found evidence that soluble iron species and acidic micro-environments generated at the concretion-glaze boundary had penetrated the glaze surface through microscopic defects, producing localized dissolution of the silicate network. Iron ions migrated into the degraded glaze, where they were detected as elevated iron concentrations in the affected zones. The hydronatrous and altered glaze layers that resulted were softer, more porous and more soluble than the original glass, creating a feedback loop in which degradation facilitated further chemical ingress. In some samples, the investigators also identified iron phosphate and iron sulfide phases within the damaged areas, testifying to the complex interplay of biological sulfate reduction, iron corrosion and post-recovery oxidation that characterizes the burial and storage histories of marine artifacts.

One of the most consequential implications of the study concerns the moment of recovery. For centuries, an artifact buried in an anoxic sediment may reach a rough chemical equilibrium with its surroundings; the iron in its concretion may remain largely in reduced, relatively stable forms. When the object is raised, drained and exposed to air, that equilibrium collapses. Reduced sulfur and iron compounds oxidize rapidly, acidity is generated, and the reactions that had been slow or dormant during burial can accelerate dramatically. The study demonstrates that this post-recovery oxidation is precisely when iron-rich concretions become most dangerous to adjacent glaze surfaces. If concretion material is left in contact with ceramic during storage, even for relatively short periods, ongoing corrosion of the iron can continue to attack the glaze long after the artifact has left the sea. This reframes a familiar conservation dilemma: concretions are often left in place, at least temporarily, because their removal is labor-intensive and risks mechanical damage to the object they encase. The new findings suggest that delayed or incomplete removal carries a chemical price that may outweigh the mechanical risks of earlier intervention.

The research also carries lessons for the display and long-term curation of marine ceramics. Many museum collections include blue-and-white wares recovered from shipwrecks, some of which retain patches of concretion or visible iron staining as evidence of their underwater history. The study’s authors emphasize that such objects should be assessed for active corrosion risk, not simply for aesthetic or structural condition. Environmental control, including low relative humidity to suppress iron corrosion and appropriate desalination treatments to remove soluble salts, forms part of the standard toolkit for marine ceramic conservation. But the findings add urgency to the selective and careful removal of iron-rich deposits from glaze surfaces, and to monitoring programs that can detect early signs of localized glaze degradation before irreversible loss occurs. Analytical imaging of the kind employed in the study, capable of resolving the chemistry at the micrometer scale, offers a template for such condition assessments.

Beyond its practical consequences, the research illuminates the broader science of how materials interact within underwater archaeological sites. A shipwreck is not a static archive but a chemically coupled system in which the decay of one material accelerates the decay of another. Iron fastenings corrode and damage wood; copper alloys leach biocidal ions that alter microbial communities; and, as this study shows, iron corrosion products attack the glassy surfaces of ceramics that might otherwise have survived for millennia. Understanding these cross-material interactions is essential both for interpreting the archaeological record and for designing interventions that preserve what remains. The degradation of bluish white glaze at concretion interfaces is a vivid example of how the story of an artifact’s deterioration is written in the chemistry of its burial environment, and how attentive analysis of that chemistry can turn conservation from a reactive discipline into a predictive one. For the countless ceramic collections still held in marine sediments around the world, and for those already on museum shelves, the message is clear: the iron that clings to a sunken porcelain is not inert residue but a continuing threat, and managing it is as important to the artifact’s future as any treatment applied on the day of recovery.

Subject of Research: The role of iron-rich concretions in accelerating localized degradation of marine-recovered bluish white ceramic glaze.

Article Title: Iron rich concretions accelerate localized degradation of marine recovered bluish white glaze

Article References: Wu, J., Zhang, R., & Luo, W. (2026). Iron rich concretions accelerate localized degradation of marine recovered bluish white glaze. npj Heritage Science. https://doi.org/10.1038/s40494-026-02978-7

Image Credits: AI Generated

DOI: 10.1038/s40494-026-02978-7

Keywords: marine archaeology, ceramic conservation, iron concretions, glaze degradation, underwater cultural heritage, corrosion science, blue-and-white porcelain, materials characterization, desalination, heritage preservation, Iron, rich