Haemangiopericytoma of the pineal body.

Haemangiopericytoma of the pineal body.

Haemangiopericytoma of the oropharynx.

Haemangiopericytoma (HPC) is a rare vascular tumor arising from the pericytes of Zimmermann and is characterized by its unpredictable and variable biological behavior. These tumors are common in the trunk and the extremities and less than 16% of the cases occur in the head & neck region. Its occurrence in the oral cavity and pharynx is uncommon. We report an extremely rare case of haemangioperi...

Studies on the function of the pineal body.

The pineal body was for a long time looked upon as a functionless remnant and from a phylogenetical point of view was accepted as a rudiment of the third eye, which is, at the present time, only found in hatteria punctata. As far as is known an epiphysis is present in all ver tebrates with the exception of mixinoids and crocodilia. In man the pineal body is pear shaped, lies just beneath the sp...

Intraperitoneal recurrence of renal haemangiopericytoma

We describe a case of a 53 years old patient who underwent right nephrectomy for a renal tumor in 2005. The histological examination revealed an hemangiopericytoma with graveness signs. Ten years later, the patient developed a huge abdominal mass. CT scan showed a voluminous locally advanced tumor measuring 30*20 cm. The mass was multilobed and hypervascularized (A) Witch was compatible with a ...

Primary haemangiopericytoma of lung.

Meade, J. B., Whitwell, F., Bickford, B. J., and Waddington, J. K. B. (1974). Thorax, 29, 1-15. Primary haemangiopericytoma of lung. Haemangiopericytoma is a rare neoplasm which may occur at any age and arise in almost any part of the body. At least 247 examples have been reported in the world literature, but only 24 appear to have arisen primarily in the lung. A summary of the features of thes...