Haemangiopericytoma of the mandible

Haemangiopericytoma/Solitary Fibrous Tumour of Mandible: An Uncommonness in the Oral Cavity

Among the bewildering variety of neoplasms occurring in the head and neck region, few are unique to the oral cavity which are quite challenging to diagnose. Due to the rarity of these tumours, it is the practicing oral pathologists' accountability to confirm some of these neoplasms with or without special investigative modalities to rule out the differential diagnosis histopathologically. One in the group of such tumour prevails haemangiopericytoma aka. solitary fibrous tumour (HPC/SFT). The management of these tumours is purely histopathologically driven, since the surgical procedure is dependent on the histological diagnosis. This neoplasm is histologically very difficult to confirm as benign or malignant without the use of immunohistochemical markers. We report such a rare case of a 54-year-old female patient, histopathologically confirmed diagnosis of HPC/SFT with CD34 positivity for documentation in the literature.

Haemangiopericytoma of the jaw

Haemangiopericytoma (HPC) is a vascular tumour which originates in the pericytes of vessels and therefore it may occur at any site, but it is very uncommon in the jaw. From January 2000 to December 2011, a retrospective analysis of nine consecutive patients with HPCJ was performed. There were five patients with a primary tumour and four patients with a recurrent tumour. Of the nine patients, eight were male and one female. Their ages ranged from 23 years to 51 years, with a median age of 38 years. The tumours were located in the mandible in six patients and in maxilla in three cases. The median course of disease was 7.6 months (range 2-12 months). All patients underwent surgery. Two patients had postoperative adjuvant radiotherapy, and two cases were given postoperative adjuvant chemotherapy. The median follow-up period was 49 months (10-101 months). One patient suffered from lumbar metastasis, while another case had metastasis at local and multiple distant sites, and eventually died. There was no local recurrence or metastasis in other seven cases. HPCJ are rare and the clinical characteristics are not specific. The first choice of treatment is radical surgery. Adjuvant radiotherapy may be effective to improve the prognosis of HPCJ.