BACKGROUND Pseudomyogenic hemangioendothelioma is a rare soft tissue tumor usually found in young adults, predominantly males. Fibrous dysplasia is a common benign bone tumor, which accounts for 5~7 % of all the primary benign bone tumors. However, pseudomyogenic hemangioendothelioma secondary to fibrous dysplasia is extremely rare. To the best of our knowledge, this is the first case of pseudo...

Hepatic hemangioendothelioma is rare. We report on hepatic hemangioendotheliomas in 2 young infants, with initial manifestations of respiratory distress and congestive heart failure. Serum alpha-fetoprotein (alphaFP) level was as high as 26,343 microg/l at 14 days old in 1 case, but was only 18 microg/l in the other case. The 2 patients were treated with prednisolone and hepatic artery ligation...

1. Calonje E, Fletcher CD, Wilson-Jones E, et al. Retiform hemangioendothelioma: a distinctive form of low-grade angiosarcoma delineated in a series of 15 cases. Am J Surg Pathol 1994;18:115-25. 2. Hirsh AZ, Yan W, Wei L, et al. Unresectable retiform hemangioendothelioma treated with external beam radiation therapy and chemotherapy: a case report and review of the literature. Sarcoma 2010;2010:...

BACKGROUND Polymorphous hemangioendothelioma is a rare vascular tumor of borderline malignant potential and only 10 cases have been described in the literature so far. METHODS AND RESULTS We report a case of nodal and extranodal polymorphous hemangioendothelioma and review the literature. A 66-year-old man with an unremarkable past medical history was admitted for a left submandibular mass. T...

Epithelioid hemangioendothelioma is a rare vascular tumor with cytologic behavior between angiosarcoma and hemangioma. We present the case of a 58-year-old male with primary epithelioid hemangioendothelioma of the distal radius measuring 6.2 × 5 cm with extension into the pronator quadratus and brachioradialis muscles. We discuss our approach to performing a limb-sparing resection combined with...

A woman aged 50 years was diagnosed as having an invasive ductal carcinoma in the right breast and ductal carcinoma in situ in the left breast and underwent bilateral mastectomy eight years ago. A mass was identified during follow-up in positron-emission tomography (PET) image in the left infraclavicular region, indicating metastasis. Histopathologic examination showed a mass of 1.9 × 1 × 0.7 c...

Hemangioendothelioma is a rare vascular tumor characterized by endothelial tumor cells and variable malignant behavior, and it's not common for this lesion to involve the bone. Although there are a few reports of cranial involvement by hemangioendothelioma, only rare cases arising in temporal bone have been published. We present the radiologic findings of a 7-year-old boy who had a high grade h...

INTRODUCTION The pulmonary epithelioid hemangioendothelioma is a rare vascular intermediate malignancy tumour. CASE PRESENTATION A 45-year-old man, he shows an isolated chronic cough with a preserved general state of health. The thoracoabdominal Computed tomography showed three well limited opacities of the right lung, among them one shows some calcifications; which we entirely resected by en...

Epithelioid hemangioendothelioma is a rare vascular tumor with intermediate biologic behavior and metastatic potential. Primary renal epithelioid hemangioendothelioma is extremely rare and we present the second report of this rare tumor in an interesting clinical scenario. A 59-year-old male with established history of widely metastatic high grade esophageal adenocarcinoma was found to have an ...

Retiform hemangioendothelioma was differentiated from low-grade cutaneous angiosarcoma by Calonje et al. [1] in 1994; retiform hemangioendothelioma is a very rare tumor of the blood vessels, with less than 30 cases reported throughout the world [2]. The causes of retiform hemangioendothelioma are unknown [2]. Clinically, this tumor occurs mainly in the limbs of young adults, with greater occurr...