Demonstrates spontaneous regression of a vascular tumor in infants, suggesting observation may be effective for certain cases.
Kaposiform hemangioendothelioma (KHE) is an aggressive vascular tumor often complicated by Kasabach-Merritt phenomenon (KMP), typically requiring aggressive treatment. This study reports four infants with pathologically confirmed KHE without KMP who underwent spontaneous regression under conservative management. Serial MRI showed objective tumor involution over 22-28 months. No KMP or complications occurred. These findings challenge universal aggressive intervention, supporting observation for selected non-coagulopathic cases.
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Xu et al. (2026) studied this question.
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