MEDÝASTENÝN NADÝR BÝR PATOLOJÝSÝ: 7 OLGU NEDENÝYLE TÝMÝK KÝSTLER

Amaç: Timik kistler, ön mediasten kitleleri içinde %1-5 sýklýkta karþýmýza çýkan benign lezyonlardýr. Radyolojik olarak düzgün sýnýrlý olup, düþük dansitede olan bu kistlerin ayýrýcý tanýsýnda diðer mediasten kistleri ve tümörleri yer alýr. Bu çalýþmada kliniðimizde timik kist nedeniyle opere edilen 7 olgunun deðerlendirilmesi amaçlanmýþ ve bu olgular literatür eþliðinde tartýþýlmýþtýr. Yöntem ve Gereç: 2007-2012 yýllarý arasýnda Timik kist nedeniyle cerrahi tedavi uygulanan 7 hasta retrospektif olarak deðerlendirilmiþtir. Bulgular: Timik kist tanýsý alan, yaþlarý 37-70 arasýnda deðiþen (ortalama 50.6 +/- 11.6) hastalarýn 5'i kadýn, 2'si erkekti. Literatürde çoðu olgu asemptomatik olarak belirtilmesine raðmen bizim olgularýmýzýn tümü çeþitli semptomlarla baþvurmuþtu. Üç olguya median sternotomi, 2 olguya sað posterolateral torakotomi ve 2 olguya videotorakoskopi ile rezeksiyon uygulandý. Ortalama kist büyüklüðü 8,4±2.6 cm (4-10 cm) idi. Hiçbir olguda malignite ve komplikasyon saptanmadý, takiplerinde nüks izlenmedi. Sonuç: Timik kistler, her ne kadar benign lezyonlar olsa da basý semptomlarýna yol açabilmeleri ve diðer mediastinal patolojilerden kesin ayrýcý tanýlarýnýn yapýlabilmesi için cerrahi olarak tedavi edilebilmektedirler. Seçilecek cerrahi yöntem ise lezyon lokalizasyonuna ve cerrahýn tecrübesine baðlý olarak deðiþebilmektedir.

A RARE PATHOLOGY OF MEDIASTINUM: THYMIC CYSTS DUE TO SEVEN PATIENTS

Aim: Thymic cysts are benign lesions representing %1-5 of all anterior mediastinal masses. Radiologically they are well circumscribed, hypodense cysts and differential diagnosis consist of other mediastinal cysts and tumours. In this study we aimed to evaluate patients, operated in our department due to thymic cyst, under the light of the literature. Material and Methods: Seven patients, operated due to thymic cyst between 2007-2012, were analysed retrospectively. Results: The mean age and age range of the 5 female and 2 male patients were 50.6±11.6 and 37-70 respectively. Eventhough thymic cysts are reported to be asymptomatic in the literature, all of our cases were admitted with various symptoms. For three patients median sternotomy, right posterolateral thoracotomy for two and videothoracoscopic resection were performed for the rest two patients. Median size of the cysts were 8,4±2.6 cm (4-10 cm). In none of these patients neither a malignancy nor a complication was detected, and all are under follow up without any recurrence. Conclusion: Surgical resection is the recommended treatment method for thymic cysts, in the consequence of their potential compressive effect on surrounding tissues and to get a certain diagnosis. The selection of the surgical technique depends on the localization of the lesion and the experience of the surgeon.