Malignant Hemangiopericytoma Arising in Neurofibromatosis: A Case Report with Histological, Immunohistochemical and Ultrastructural Studies

摘要

Subject. A 27-year-old Hispanic male with clinical manifestation of neurofibromatosis type 1 developed chronic constipation and urination difficulty along with recently increased abdominal bloating and anorexia. He also noted 40 lbs weight loss over period of 1 year. Physical and radiographic examinations revealed a large mass in the right pelvic fossa.