Glomangiopericytoma: An uncommon sinonasal perivascular tumor with particular characteristics

Glomangiopericytoma Versus Solitary Fibrous Tumor: an Omental Tumor with Unusual Diagnostic Dilemma

“…Many cases mainly arising in the nasal cavity, [7][8][9][10][11][12] paranasal sinuses, skull base [1], extremities and stomach [3,13] have been reported, but to our knowledge there has been no previous report of glomangiopericytoma in the omentum. It is worthy to note because it is rare to find such tumors in that region.…”

Endoscopic resection of invasive glomangiopericytoma following preoperative embolisation

“…These lesions predominantly involve the nasal cavity and present rather benign local behaviour, with rare metastasis (3%) despite a high recurrence rate 2 5 7 9 13 14. Extension into the paranasal sinuses is rare and extrasinusal involvement is extremely rare, although bone erosion and sclerosis may occur 2 9 14.…”

“…These lesions predominantly involve the nasal cavity and present rather benign local behaviour, with rare metastasis (3%) despite a high recurrence rate 2 5 7 9 13 14. Extension into the paranasal sinuses is rare and extrasinusal involvement is extremely rare, although bone erosion and sclerosis may occur 2 9 14. This finding was described in one case at the internal wall of the orbit by Jung et al ;15 in the skull base in one case by Sun et al ;16 and in six cases involving the cribriform plate by Tessema et al 11 To our knowledge, there are no reported cases in the literature describing bone destruction with intracranial invasion associated with this type of tumour.…”

A rare sinonasal tumour with orbital manifestation: glomangiopericytoma

“…The disease location, clinical characteristics, histopathological features and mortality rates of glomangiopericytoma differs from conventional soft-tissue hemangiopericytoma. 2,3 Glomangiopericytoma arise almost exclusively from the nasal cavity or paranasal sinuses and is characterized histologically by a pattern of prominent perivascular growth. Unlike softtissue hemangiopericytoma, it has borderline low malignant potential and only accumulates to <0.5% of all sinonasal neoplasms.…”

“…In 2005, World Health Organization identified it as a unique sinonasal low malignancy lesion and proposed the term 'glomangiopericytoma' and 'myopericytoma' because of its similarity with glomus tumors. 2 We present a case of aggressive behaving sinonasal glomangiopericytoma (malignant glomangiopericytoma) treated with surgical resection in Hospital Sultanah Bahiyah, Alor Setar.…”