Solitary fibrous tumor of the tentorium – a case report

Abstract

The authors describe the clinical and pathological features of a solitary fibrous tumor of the tentorium, a rare location for the tumor in the CNS. A 52-year-old lady presented to the neurosurgical services with headache of four months and vertigo of one and a half months duration. On examination, she had left-sided cerebellar signs and bilateral papilloedema. Cranial MR imaging showed an enhancing tumor based on the left tentorium. Clinical impression was a meningioma. The patient underwent left suboccipital craniectomy. The tumor was firm and vascular, extending above the tent through a defect. Total excision was achieved. The correct diagnosis of solitary fibrous tumor could be made only by histopathology. Solitary fibrous tumors of the tentorium, though rare, should be included in the differential diagnosis of dural based masses.KeywoRds: Solitary fibrous tumor, Tentorium, Meningioma, CD 34, Hemangiopericytoma, Vimentin ÖZ Yazarlar MSS'de tümör için nadir bir konum olan tentoriuumda soliter fibröz tümörün klinik ve patolojik özelliklerini tanımlamaktadır. 52 yaşında bir kadın hasta beyin cerrahisi polikliniğine dört aydır başağrısı ve bir buçuk aydır başdönmesiyle başvurdu. Muayenede sol tarafta serebellar bulgular ve bilateral papilla ödemi mevcuttu. Kraniyal MR görüntüleme sol tentorium temelli kontrast tutan bir tümör gösterdi. Klinik izlenim menenjiyomdu. Hastaya suboksipital kraniyektomi yapıldı. Tümör sert ve vaskülerdi ve bir defekt yoluyla çadırın üzerine uzanmaktaydı. Total eksizyon yapıldı. Soliter fibröz tümörün doğru tanısı sadece histopatoloji ile konabildi. Tentorium soliter fibröz tümörleri nadir olmalarına rağmen dura kökenli kitlelerin ayırıcı tanısında dikkate alınmalıdır.ANAHTAR sÖZCÜKLeR: Soliter fibröz tümör, Tentorium, Menenjiyom, CD 34, Hemanjiyoperisitom, Vimentin

A solitary fibrous tumor with concurrent meningioma at the same site: A case report and review of the literature

“…SFTs of the meninges were originally described by Carneiro et al in 1996 ( 14 ). The origin of SFTs has been a subject of controversy; they are typically dura-based, but may also present as intraventricular masses arising from cranial nerves or ubiquitous CD34-positive, dendritic, fibroblastic cells, which do not have an apparent association with the meninges ( 15 , 16 ). The World Health Organization classification of tumors of the CNS states that mesenchymal, non-meningothelial tumors originate from submesothelial, mesenchymal, fibroblast-like cells as opposed to developing from the mesothelium itself ( 17 ).…”