ÖZETHistolojik özellikleri yönünden ilginç olan ve çok nadir görülen bir gölge hücreli odontogen kist vakası bildirildi. Hasta 39 yaşında bir erkekti ve lezyon üstçene sol orta keserle ikinci küçükazı dişleri arasındaki alanda yer alıyordu.SUMMARY[Ghost celled odontogenic cyst or calcifying odontogenic cyst]A relatively rare cyst in the bone of the maxilla of a 39 - year - old male patient was described.Examination of the oral cavity revea'ed a smooth, somewhat fluctuant swelling that involved the left maxillary ridge and mucobuccal fold from the central incisor to the second premolar area. Roentgenographs examination showed radiolucent lesions in the left mexil'a (Fig. 1). These cysts were enucleated and curettaged under local anesthesia. Histologic examination of the lesion showed the typical appearence of the ghost - celled odontogenic cyst (Fig. 2 and 3). There were strands and islands of primitive odontogenic epithelium in the connective tissue of the cyst wall (Fig. 4). Calcification of the ghost cells was observed.Calcification of the ghost cells is a frequent but not constant feature, and this kind of calcification is known as dystrophic type. Dystrophic calcification can be seen in some tumors    (f. i. Chraniopharyngoima, Oligodendroglioma, thyroid and ovarian carcinomas), but the ghost cells are the principle structures of these cysts. Therefore, "the ghost celled odantogenic cyst" will be e better designation has over been proposed.