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Empty sella syndrome is defined as a herniation of the subarachnoid space within sella, hence, flattening of the pituitary gland. Most of the empty sella cases are found incidentally which this syndrome can be easily missed during maxillofacial radiological examinations. The aim of this paper is to describe two cases of partial empty sella and discuss the differential diagnosis for this condition. Both patients administered to our clinic with pain in the forehead and maxilla. In addition to clinical examination two patients (37 year old male, 70 year old female) were imaged using panoramic radiography, cone beam computed tomography and magnetic resonance imaging. Panoramic radiographies showed no findings in terms of empty sella. However, in CBCT imaging, both patients showed an expansion in the sella turcica and protrusion into sphenoid sinus. These were more precisely located using 3D CT reconstructions. MR imaging showed intermediant signal on T1-weighted images and high signal on T2- weighted images. MRI findings showed the partial anterior prolapsus of pituitary gland with cerebrospinal fluid leak in posterior border of sella turcica. According to MRI findings, definitive diagnosis was partial empty sella syndrome. Maxillofacial radiologists should be aware of this kind of abnormalities while reporting the entire FOV. Keywords: Empty Sella Syndrome, CBCT, MRI, sella turcica, pituitary gland INCIDENTAL DIAGNOSIS OF PARTIAL EMPTY SELLA ON CBCT: TWO CASE REPORTS OZ Empty sella sendromu, subaraknoid bolgenin sella icerisine herniyasyonu bundan dolayi da hipofiz bezinin duzlesmesi olarak tanimlanmistir. Bir cok empty sella vakasi tesadufen tespit edildigi icin bu sendrom maksillofasiyal radyolojik inceleme sirasinda kolaylikla gozden kacabilir. Bu makalenin amaci iki parsiyel empty sella vakasini sunmak ve bu durum ile ilgili ayirici tanilari tartismaktir. Her iki hasta da maksilla ve alin bolgesinde agri ile klinigimize basvurdu. Klinik muayeneye ek olarak her iki hastadan da (37 yas erkek, 70 yas kadin) panoramik radyograf, konik isinli bilgisayarli tomografi ve manyetik rezonans goruntuleme ile goruntuler alindi. Panoramik radyografide empty sellaya iliskin herhangi bir bulguya rastlanmadi. Ancak, KIBT goruntulerinde her iki hastada da sella tursikada ekspansiyon ve sfenoid sinus icerisine protruzyon goruldu. Bu bulgular 3 boyutlu rekonstruksiyon goruntulerinde tam olarak lokalize edildi. Manyetik rezonans goruntulemede T1 agirlikli goruntulerde orta duzeyde sinyal ve T2 agirlikli goruntulerde ise yuksek sinyal alindi. MRG bulgulari sella tursikanin arka sinirinda serebrospinal sivi sizintisi ile birlikte hipofiz bezinin parsiyel anterior prolapsusu oldugunu gosterdi. MRG bulgulari ile parsiyel empty sella kesin tanisi kondu. Maksillofasiyal radyologlar goruntuleme alanina giren tum yapilari rapor ederken bu tip patolojilere de dikkat etmelidirler. Anahtar Kelimeler: Empty sella sendromu, KIBT, MRG, sella tursika, hipofiz bezi

KIBT İLE TESADÜFEN BULUNAN PARSİYEL EMPTY SELLA TANISI: İKİ VAKA RAPORU