Hemangioma of the abdominal wall in infancy

Hemangiomas are common benign vascular tumors in infancy, but their occurrence in the abdominal wall is rare. We report a 6-month-old female infant with a left-sided palpable abdominal wall mass. Ultrasound revealed a well-defined, vascularized soft tissue mass, but its precise location was unclear. Contrast-enhanced computed tomography showed a 4.3 × 4 × 4 cm heterogeneous mass with peripheral arterial enhancement and centripetal filling, raising suspicion for a vascular malformation or hemangioma. Magnetic resonance imaging confirmed a hypervascular mass in the lateral-posterior abdominal wall. Due to the lesion's high vascularity, percutaneous biopsy was considered high-risk, and complete surgical excision was performed. Histopathology confirmed a benign hemangioma with organized hematoma and dystrophic calcification. The patient had an uneventful recovery, with no recurrence observed at 40-day and 6-month follow-ups. This case highlights the importance of considering hemangiomas in the differential diagnosis of abdominal wall masses in infants.