Epitheloid hemangioendothelioma of urinary bladder

A Rare Case of Hemangioendothelioma of Urinary Bladder

Hemangioendothelioma is a vascular tumor of endothelial nature of intermediate grade. It most commonly arises from soft tissue of upper and lower extremities. We report a rare case of epithelioid hemangioendothelioma of the urinary bladder. Histologically, it was a vascular tumor formed by smaller capillaries lined by plump epithelioid cells having eosinophilic cytoplasm. Diagnosis was confirmed by immunohistochemistry, as the tumor cells were positive for CD34 and smooth muscle actin.

Epitheloid hemangioendothelioma of the subcutaneous tissues of a finger

Epithelioid hemangioendotheliomas (EHEs) are known to have a variable malignant potential. EHEs are rarely seen in the hand and there is no consensus about their management. The options include excision, excision followed by adjuvant radiotherapy and amputation. In this paper, we report a case of EHE of a finger that was treated by excision. Although the tumor had ill-defined borders and there was histological evidence of tumor extension to all resection margins, no local recurrence or metastasis were noted during the 3 years of followup. The literature is reviewed and an argument is made that EHEs of the hand may have a more benign behavior compared with EHEs of the lower limbs and viscera.