Amelo blastoma is a neoplasm that originates from odontogenic epithelium. It the second most common of oral cavity. Uni cystic ameloblastomas refer to those lesions show clinical, radio graphic, or gross features jaw cyst, but on histologic examination typical ameloblastomatous epithelium lining part cyst cavity, with without luminal and/ mural growth. Even though lesion not aggressive as solid...

BACKGROUND Wnt/β-catenin signaling pathway is essential for the beginning of odontogenesis and may be involved in the development and progression of some odontogenic tumors. Thus, the aim of this study was to comparatively evaluate the immunohistochemical expression of Wnt/β-catenin signaling pathway proteins in a series of AME and CCOT. MATERIAL AND METHODS Immunohistochemical reactions were...

Adenomatoid odontogenic tumors are considered, rather than a neoplasia, a benign, hamartomatous epithelial lesion of odontogenic origin . Steensland fi rst described it in 1905; he considered it as a variation of ameloblastoma.1 Stafne, in 1948 described it as an «ameloblastic adenomatoid tumor or adenoameloblastoma»,2 since it presented structures which simulated canals or glands, he therefore...

conclusions we reported a rare case of large residual cyst. dental practitioners should consider this lesion in the differential diagnosis of radiolucent lesions of the jaw bone. case presentation a 59-year-old iranian man complaining of a dull pain in his left side of the mandible after falling down one month ago was referred to the department of oral and maxillofacial pathology, hamadan unive...

Calcifying odontogenic cyst is a rare entity which was first described by Gorlin, and also accounts for 1% of the jaw cysts according to Shear. Due to its diverse histopathology and variable clinical features, there has been a doubt regarding its nature as a cyst or a neoplasm. In this report we present a case of calcifying odontogenic cyst with mural ameloblastomatous presentation in the left ...

Notch signaling is an evolutionarily conserved mechanism that enables adjacent cells to adopt different fates. Ghost cells (GCs) are anucleate cells with homogeneous pale eosinophilic cytoplasm and very pale to clear central areas (previous nucleus sites). Although GCs are present in a variety of odontogenic lesions notably the calcifying cystic odontogenic tumor (CCOT), their nature and proces...

calcifying odontogenic cyst (coc), central odontogenic fibroma (cof) and aggressive central giant cell granuloma (cgcg) are rare pathologic diseases affecting the jaws. while the co-existence of two of them is reported in the literature, existence of all three conditions in one patient is an extremely rare entity. in the present report, initial biopsy revealed fibrosarcoma, therefore mandibular...