BACKGROUND It has been demonstrated that HER3 plays an important role in some human cancers and the HER3 expression is associated with worse survival in solid tumors. OBJECTIVES This study was conducted to compare HER3 expression in epithelial lining of radicular cysts (RCs), dentigerous cysts (DCs) and odontogenic keratocysts (OKCs). MATERIALS AND METHODS This was a descriptive-analytical ...

The orthokeratinized odontogenic cyst is a relatively rare developmental odontogenic cyst of the jaws that occurs predominantly in males between the third and fourth decades. According to the 2005 World Health Organization's classification, orthokeratinized odontogenic cyst is not a part of the keratocystic odontogenic tumor spectrum. We present a case of a 41-year-old male with a history of re...

Squamous cell carcinoma (SCC) derived from keratocystic odontogenic tumor is an extremely rare tumor that is limited to the jaws. Most intraosseous carcinomas originate from the epithelial lining of odontogenic cysts, so they are called odontogenic carcinomas. They occur more frequently in men and the mean age of patients is 57 years. The following report describes an extremely rare case of an ...

While odontogenic keratocysts (OKC) are fairly common and well-known, orthokeratinized cysts (OOCs) quite rare accounting for less than 1% of cysts. The entity is characterized by the presence a predominant lining. OOC much aggressive as compared to OKC simple enucleation discerned adequate treatment with minimal chances recurrence. present case report describes an extensive that involved most ...

conclusions the her3 expression in developmental odontogenic cysts was higher than that in inflammatory odontogenic cysts. the higher rate of her3 expression in okc may justify inherent growth potential, stimulation-independent proliferation capability, invasive growth and high recurrence rate of the cyst accepted today as a tumor. results the her3 expression had positive results in 52.4% of ok...

OBJECTIVE To determine the relative frequency of OC, and compare it with previous studies. METHODS A retrospective review of histopathology archives in the College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia of the period 1984-2010 was carried out from September 2010 to February 2011. Diagnosis was confirmed according to the World Health Organization histological class...

Objective: To assess the thickness and color of collagen fibres in various odontogenic cysts for its possible role in expansion. Study design: 49 cases of 4 types of odontogenic cysts and 5 normal mucosal tissues were selected as the study and the control group respectively. All slides were stained with both Hemotoxylin and Eosin and the picrosirius red stain. The thickness of collagen fibres w...

Although aneurysmal bone cysts and calcifying odontogenic cysts accompanied with other lesions are reported in the literature, the simultaneous occurrence of these two distinct lesions has not been reported. To the best of our knowledge, this is the first report describing co-occurrence of these two lesions located in the left mandibular ramus in a 36-year-old woman.

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...