Mete KARATAY, Uğur YAŞITLI, Haydar ÇELİK, Cevdet GÖKÇEK, Yavuz ERDEM, Ayhan TEKİNER, Mehmet Akif BAYAR

SUPRA-İNFRA SELLAR EPİDERMOİD KİSTİN ERKEN NÜKSÜ: OLGU SUNUMU

Epidermoid kistler tüm intrakraniyal tümörlerin yaklaşık %0,2-1,7'sini oluşturan nadir, benign, yavaş büyüyen konjenital tümörlerdir. Bu tümörler için intradural boşlukta en sık görülen konumlar serebellopontin açı ve parasellar sisternlerdir. Sellar bölgenin kistik lezyonlarının ayırıcı tanısında kraniyofarenjiyomlar, Rathke yarığı kistleri, kolloidal kistler, araknoid kistler, kistik pitüiter adenomlar, ksantogranülomlar ve epidermoid ve dermoid kistler bulunur. Epidermoid kistler intrasellar bölgede ancak nadiren yer alırlar. Epidermoid kistlerin kraniyal MRG'de değişken sinyal şiddeti vardır ve periferal halka benzeri kontrast tutması nadirdir. Kontrast tutmayla tümör nüksü arasında bir ilişki doğrulanmamıştır. Periferal halka benzeri kontrast tutma gösteren bir supra-infra sellar epidermoid kist vakası sunuyoruz. Hasta ilk ameliyattan sonra erken nüks göstermiştir.

EARLY RECURRENCE OF SUPRA-INFRA SELLAR EPİDERMOİD CYST:A CASE REPORT

Epidermoid cysts are rare, benign, slow-growing congenital tumors that constitute approximately 0.2-1.7% of all intracranial tumors. The most common locations for these tumors in the intradural space are the cerebellopontine angle and parasellar cisterns. The differential diagnosis of cystic lesions of the sellar region includes craniopharyngiomas, Rathke's cleft cysts, colloidal cysts, arachnoid cysts, cystic pituitary adenomas, xanthogranulomas, and epidermoid and dermoid cysts. Epidermoid cysts are only rarely located in the intrasellar region. Epidermoid cysts have variable signal intensity on cranial MRI and rim-like contrast enhancement is unusual. A relationship between contrast enhancement and tumor recurrence has not been verified. We report a case of supra-infra sellar epidermoid cyst with rim-like contrast enhancement. The patient showed early recurrence after the first operation.

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