Hemangiopericitoma tipo senonasal. Palabras clave: Hemangiopericitoma, cavidad nasal, senos paranasales. Sinonasal-type hemangiopericytoma. A report of one case and review of the literature SUMMARY The new WHO classification of soft tissue tumours, has introduced some changes in the nomenclatura of pericytic lesions but also in its clinicopathologic definition.
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Hemangiopericitoma tipo senonasal. Palabras clave: Hemangiopericitoma, cavidad nasal, senos paranasales. Sinonasal-type hemangiopericytoma.
A report of one case and review of the literature SUMMARY The new WHO classification of soft tissue tumours, has introduced some changes in the nomenclatura of pericytic lesions but also in its clinicopathologic definition.
Among this kind of lesions, sinonasal-type hemangiopericytoma is considered a tumor with true pericytic differentiation. It is a upper aero-digestive tract neoplasm, slightly commoner in women than men, and occurs in all age groups but it is more commonly seen in the 6th and 7th decades of life.
In general, sinonasal-type hemangiopericytoma is an indolent tumor and local recurrence results from inadequate surgical excision. Tumors with an aggressive behaviour, locally destructive or metastatic, have been occasionally reported in the literature. We describe a case of this uncommon tumor with the characteristics clinical and pathologic findings in this lesion. A year-old woman presented with a 2-year history of epistaxis. The tumor involved the left nasal cavity and also the homolateral paranasal sinuses, it was polypoid and the patient was treated by endonasal endoscopic surgery with a complete resection.
Microscopically, it was constituted from sheets of uniform cells with a ovoid nuclei and indistinct cytoplasm distributed around characteristic hyalinized vascular spaces. Nuclear pleomorphism was absent and mitotic figures were identified a very low rate. The tumor was immunoreactive with vimentin, muscle specific actin, smooth muscle actin and CD After two-years of follow-up, the patient is alive and without evidence of disease. Keywords: Hemangiopericytoma, nasal cavity, paranasal sinuses.
El HP tipo senonasal es, por lo tanto, un tumor raro. El examen con TAC previo a la misma, mostraba una masa de planos blandos que ocupaba la fosa nasal izquierda y los senos esfenoidal, frontal y parcialmente maxilar, homolaterales. La pieza fue fijada en formol tamponado y las secciones obtenidas se procesaron de forma usual y se incluyeron en bloques de parafina. El citoplasma era rosado y con el borde poco definido.
Es llamativa la esclerosis hialina perivascular. H-E x Ann Surg ; An analysis of cases. Hum Pathol ; 7: Hemangiopericytoma: histopathologic pattern or clinicopathologic entity?
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Jushura A tumour with perivascular myoid differentiation: Glomangiopericytomas are uncommon and are characterized by frequent recurrence, but metastases are rare. New author database being installed, click here for details. Normal endothelium lines the blood vessels in contrast to malignant angiosarcoma, where the malignant tumor lines the vascular spaces. Hemangiopericitoma de cavidad nasal Next, we exposure a clinic case. Glomangiopericytomas are a group of soft tissue neoplasias currently considered glomus-like perivascular myoid differentiation, with findings of hemangiopericytoma in the same lesion. A year-old male patient, previously healthy, came into our service with an intranasal tumor of polypoid aspect coming out through his right nostril, provoking swelling of the nasal pyramid on the right and of the septum hemangiopericotoma the left.
Hemangiopericitoma tipo senonasal. Presentación de un caso y revisión de la literatura