Abstract
Kaposiform hemangioendothelioma (KHE) is a rare, locally aggressive vascular tumor of infancy that may be associated with Kasabach–Merritt phenomenon (KMP). We report a term female neonate presenting with a 4×4 cm cervical mass at birth. Imaging demonstrated a well-circumscribed, highly vascular lesion without infiltration or compression of vital structures, and no coagulopathy was detected. Although these imaging features were atypical for KHE, the lesion was anatomically resectable, and malignancy could not be excluded from the differential diagnosis. Complete surgical excision was therefore performed on day 10. Histopathology confirmed KHE. The postoperative course was uneventful, with no recurrence at 1-year follow-up. This case highlights an uncommon radiologic presentation of KHE and suggests that complete surgical excision may represent a potentially curative option in carefully selected patients with anatomically resectable disease.