hemangiopericytoma


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hemangiopericytoma

 [he-man″je-o-per″ĭ-si-to´-mah]
a tumor composed of spindle cells with a rich vascular network, which apparently arises from pericytes.

he·man·gi·o·per·i·cy·to·ma

(he-man'jē-ō-per'i-sī-tō'mă),
An uncommon vascular, usually benign, neoplasm composed of round and spindle cells that are derived from the pericytes and surround endothelium-lined vessels; malignant hemangiopericytomas are difficult to distinguish microscopically from the benign.
[hemangio- + pericyte + G. -oma, tumor]

he·man·gi·o·per·i·cy·to·ma

(hē-man'jē-ō-per'i-sī-tō'mă)
An uncommon vascular, usually benign, neoplasm composed of round and spindle cells that are derived from the pericytes and surround endothelium-lined vessels.
Synonym(s): haemangiopericytoma.
References in periodicals archive ?
Complication Cyanosite progressed Small cyanosites into superficial necrosis Case 3 Case 4 Sex Female Male Breed Labrador retriever Labrador retriever Age 8 years 8 years Neoplasms of Nodule in the region of Nodule in the region of the location the left elbow the right elbow Neoplasia type Neurofibrosarcoma Hemangiopericytoma Type of surgery Thoracodorsal axial Tubular indirect flap.
Glomangiopericytoma (sinonasal-type hemangiopericytoma [HPC]).
Histological examination revealed a malignant neoplasm with marked hypercellularity and nuclear atypia, hypervascularity, necrosis, and intratumoral hemorrhage consistent with a WHO 2007 grade III anaplastic hemangiopericytoma [7].
Rare case of paratesticular solitary fibrous tumour (lipomatous hemangiopericytoma).
Hemangiopericytoma of the omentum: Report of a case with a unique presentation and review of the literature.
Plasmacytoma may be similar to a meningioma, metastasis, sarcoma, chordoma, hemangiopericytoma, and giant cell tumor.
Follow-up MRI showed a mass suggesting expansile hemangiopericytoma of the left posterior thorax.
of Susceptible to % biopsy VSV[DELTA]M51 samples Malignant 17 11 65 fibrohistiocytoma Osteosarcoma 14 9 64 Liposarcoma 13 4 31 Chondrosarcoma 5 4 80 Fibrosarcoma 4 1 25 Synovial sarcoma 3 2 67 Ewing's sarcoma 3 2 67 Dermatofibrosarcoma 100 protuberans 1 1 Neuroblastoma 1 0 0 Hemangiopericytoma 1 1 100 Peripheral nerve 1 1 100 sheath tumor Myxoma 2 0 0 Leiomyosarcoma 2 1 50 Chordoma 1 1 100 Total 68 38 56
7 Guerrissi JO, Miranda MG, Olivier R.Giant hemangiopericytoma of mandible: a propos of a case: a variant of the surgical technique for protection of the articular fosse.BrazJotorhinolaryngol.
Differential diagnosis of PG includes parulis, congenital epulis, peripheral giant cell granuloma, hemangioma, peripheral fibroma, pregnancy tumor, post extraction granuloma, hemangiopericytoma, Kaposi's sarcoma, Epstein pearls, Bohn nodules.
The differential diagnosis of angioblastoma are pyogenic granuloma, kaposiform hemangioendothelioma (KHE), hemangiopericytoma, strawberry angioma etc.