BACKGROUND Capillary hemangiomas, the most common tumors in young children, consist of proliferating capillary vessels and endothelial cells. These tumors also contain large numbers of mast cells, compared with the normal surrounding skin or tissue. We have recently shown that stem cell factor (SCF), the gene product of the murine steel locus, can act as a chemoattractant for mast cells. In thi...

The cavernous hemangioma is the most common benign orbital tumor in adults. Its presentation is during the forth to fifth decades with a slowly progressive unilateral proptosis. Intraconal cavernous hemangiomas may be difficult to differentiate from other intraconal lesions such as schwannomas, meningiomas and hemangiopericytomas. We report a case of orbital cavernous hemangioma diagnosed by Tc...

Four patients with sonographic suggestion of hepatic hemangioma are studied with Tc99m-labeled RBC scan. The scan findings are compaired with other imaging modalities. Lesions as small as 36 mm could be detected by this method. Tc99m labeled RBC scan is a valuable tool to differentiate hepatic hemangioma from other space occupying lesion of the liver.

Hepatic hemangioma, a common benign tumor of the liver, has caused great threats to the public health. Most patients have an excellent prognosis because of the benign nature of hemangioma. On some occasions, spontaneous rupture of hepatic hemangioma is rarely observed in patients. Therefore, a majority of scholars propose that surgery should be restricted to specific situations. In this case, w...

Background: Cervical esophageal hemangioma is a rare benign tumor. Symptoms may include hematemesis, dyspnea, cough, dysphagia, and chest pain. Objectives: To describe a case of a large esophageal hemangioma in order to raise awareness of the condition and highlight the use of a cooperative endoscopic treatment approach by a gastroenterologist and otolaryngologist with excellent results. The li...

The authors present an extremely rare case of an aggressive and progressive vertebral capillary hemangioma of the lumbar spine secondary to a trauma. A 40-year-old man who complained of back and leg pain due to a hemangioma of L1 that had begun a year after the fracture of the same vertebra was subsequently operated on. Due to the profuse bleeding, only a subtotal removal was possible. Histopat...

C horoidal hemangioma is a relatively rare, benign vascular hamartoma. The circumscribed type is classically unilateral and is believed to be congenital in origin.1,2 Circumscribed choroidal hemangioma typically appears as a slightly oval or round, red-orange mass in the macular or perimacular region of the choroid, often with clinically indistinct borders.1-3 Although choroidal hemangioma is b...

Infantile hemangiomas are endothelial tumors that grow rapidly in the first year of life and regress slowly during early childhood. Although hemangiomas are well-known vascular lesions, little is known about the mechanisms that cause the excessive endothelial cell proliferation in these most common tumors of infancy. To investigate the molecular basis of hemangioma, we isolated endothelial cell...

Aim. Cavernous hemangioma-like Kaposi sarcoma is a rare morphologic type of Kaposi sarcoma. So far there are no cases in the literature defining the histological features of this morphologic spectrum in detail. In this study we presented two classical-type cutaneous Kaposi sarcoma cases with histologic findings resembling cavernous hemangioma in company with clinical and histopathological data....

A hemangioma of the parapharyngeal space (PPS) is an extremely rare tumor and is responsible for 0.5-1% of all tumors occurring in the PPS. We report a case of PPS venous hemangioma in a 49-year-old woman presenting with diffuse swelling in the submandibular region. A preoperative computed tomography (CT) scan showed a cystic mass with multiple calcifications in the PPS. The calcific nodules we...