血管外被细胞瘤——附11例临床病理分析

HEMANGIOPERICYTOMA:CLINICOPATHOLOGICAL ANALYSIS OF ELEVEN CASES

血管外被细胞瘤是起源于血管周细胞的肿瘤。可发生于四肢、头颈部、背部、腹膜后及腹腔等处。对此瘤的患病率、部位、临床症状、生物学行为及良恶性鉴别等问题进行讨论,并将此瘤分为三种类型:①组织学为良性(低度恶性)。②组织学为交界性(中度恶性)。③组织学为恶性(高度恶性)。

Hemangiopericytoma is a kind of soft tissue tumor of vascular origin composed of pericytes. It has been reported in the extremities, head and neck, back, retroper itoneum, abdominal cavity and other sites. Its incidence, location, clinical symptoms, biologic behavior, differential diagnosis between benign and malignant varieties and 60 on, are also discussed. The authors believe that hemangiopericytoma can be classified into three types. (1) histologically benign case with low grade of malignancy; (2) histologically junctional case with moderate degree of malignancy; and (3) histologically malignant case with high degree of malignancy.