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Kaposiform Hemangioendothelioma With Features of Congenital Hemangioma Treated With Sirolimus
Danny Lee1, Jennifer Sui2, Alreem Al-Nabti3
1University of California San Diego School of Medicine, La Jolla, California, USA.
Kaposiform hemangioendothelioma (KHE) is a vascular neoplasm characterized by abnormal angiogenesis and lymphangiogenesis. Here, we present a case of a 19-month-old male with KHE of the right leg with bony involvement who was initially misdiagnosed with infantile hemangioma. Due to its heterogeneous presentation and frequent occurrence of comorbidities such as Kasabach-Merritt phenomenon, clinical and pathological correlation is essential for diagnosis of KHE.
Kaposiform hemangioendothelioma (KHE) is a vascular neoplasm characterized by abnormal angiogenesis and lymphangiogenesis. Here, we present a case of a 19-month-old male with KHE of the right leg with bony involvement who was initially misdiagnosed with infantile hemangioma. Due to its heterogeneous presentation and frequent occurrence of comorbidities such as Kasabach-Merritt phenomenon, clinical and pathological correlation is essential for diagnosis of KHE.

