Expression of Hard a-Keratins in Pilomatrixoma, Craniopharyngioma, and Calcifying Odontogenic Cyst

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Expression of Hard α-Keratins in Pilomatrixoma, Craniopharyngioma, and Calcifying Odontogenic Cyst

To examine the properties of shadow and ghost cells, 3 kinds of antibodies were raised against human hair proteins and their immunoreactivity was examined in tumors expressing those cells: pilomatrixoma, 14 cases; craniopharyngioma, 17 cases; and calcifying odontogenic cyst (COC), 14 cases. Sodium dodecyl sulfate–polyacrylamide gel electrophoresis and Western blot analyses demonstrated that 2 p...

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Immunohistochemical expression of podoplanin in so-called hard α-keratin-expressing tumors, including calcifying cystic odontogenic tumor, craniopharyngioma, and pilomatrixoma.

Podoplanin, a transmembrane sialomucin-like glycoprotein, is a specific marker of lymphatic vessels, and its expression is also considered to be associated with tumor invasion and tooth development. In this study, we examined the expression of podoplanin in calcifying cystic odontogenic tumor (CCOT) in comparison with that in other so-called hard α-keratin-expressing tumors such as craniopharyn...

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Myofibroblasts in calcifying odontogenic cyst and dentigerous cyst

Introduction:Calcifying odontogenic cyst (COC) is an odontogenic cyst that sometimes shows aggressive behavior, while dentigerous cyst (DC) always has a benign nonaggressive course. There are evidences that myofibroblasts are involved in invasion and their role in biologic behavior of odontogenic cysts has been less understood. So, the aim of the present study was to compare th...

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Recurrent Peripheral Calcifying Cystic Odontogenic Tumor (Calcifying Odontogenic Cyst)

  Peripheral calcifying cystic odontogenic tumor (PCCOT) is a rare odontogenic lesion, which represents about 1% of jaw cysts. Here we report clinicopathologic, radiographic and CT scan images of a new case of recurrent large PCCOT located in mandibular gingiva in a 77-year-old male with history of a nodular mass in the same area, which had been completely excised 3 years ago. In reviewing the...

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A Case Report of Calcifying Odontogenic Cyst with Ameloblastic Proliferation

Calcifying odontogenic cyst is a developmental odontogenic cyst first described by Gorlin in 1962. It is considered as an extremely rare condition and shows extensive diversity in its clinicopathological appearances and biologic behavior. In this report a rare case of calcifying odontogenic cyst with ameloblastic proliferation (an extremely rare histologic variant) with one year follow – up is ...

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ژورنال

عنوان ژورنال: American Journal of Clinical Pathology

سال: 2005

ISSN: 0002-9173

DOI: 10.1309/wvtr-r1dx-ymc8-pbmk