What does this research mean for the field?

Kaposiform hemangioendothelioma (KHE) without Kasabach-Merritt phenomenon (KMP) can undergo spontaneous regression under conservative management, indicating that observation is a viable alternative to aggressive intervention for selected non-coagulopathic cases. Novelty: ClaimNovelty.CONTRADICTORY. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

To explore the spontaneous regression of kaposiform hemangioendothelioma in infants without complications.

March 18, 2026

Spontaneous Regression of Kaposiform Hemangioendothelioma Without Kasabach–Merritt Phenomenon

Key Points

To explore the spontaneous regression of kaposiform hemangioendothelioma in infants without complications.
Four infants with pathologically confirmed KHE were observed without aggressive treatment.
Serial MRI imaging was conducted to monitor tumor involution over a period of 22-28 months.
Patients were selected based on the absence of Kasabach-Merritt phenomenon.
All infants showed objective tumor involution over the observation period.
No cases of Kasabach-Merritt phenomenon or treatment-related complications were reported.
Findings support the idea that selected cases may not require aggressive intervention.

Abstract

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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Discussion

Authors

Yao Xu

Jiayi Liu

Jiangyuan Zhou

Journals

Pediatric Blood & Cancer

Actions

Institutions

Sichuan University

West China Hospital of Sichuan University

References and Citations

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Building similarity graph...

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Spontaneous Regression of Kaposiform Hemangioendothelioma Without Kasabach–Merritt Phenomenon

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Authors

Journals

Actions

Institutions

References and Citations

Citation Network

Connected Papers

Discussion

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