Paratracheal cysts, usually incidental findings on imaging for other reasons, rarely cause symptoms so as to necessitate treatment. Such a large paratracheal cyst indenting on the apex of the lung is barely reported in the literature.

The calcifying epithelial odontogenic tumor (CEOT) is a rare benign odontogenic neoplasm which was first described by Pindborg in 1955 representing only 1% of all odontogenic tumors. The tumor has an ectodermal odontogenic origin. This tumor are considered benign but can be locally aggressive in nature with recurrence rates of 10-15% reported. Surgical treatment varies from simply enucleation t...

Adenomatoid odontogenic tumour is a benign (hamartomatous), noninvasive lesion with slow but progressive growth. The 3 variants--follicular, extrafollicular and peripheral--present with identical histological findings. This report describes a patient with a large adenomatoid odontogenic tumour in the mandible, with the involved mandibular canine being pushed to the contralateral side. The paper...

Calcifying cystic odontogenic tumor (CCOT) is a rare odontogenic lesion comprising about 2% of all odontogenic pathological changes in the jaw. Clinically presents as painless swelling of jaw, while histopathology demonstrates characteristic “Ghost” epithelial cells with a propensity to calcify. Due to its varied clinical presentation, including cystic and neoplastic forms and recurrence rates ...

Orthokeratinized odontogenic cyst (OOC) is a developmental cyst that occurs in the jaw. it was initially defined by the world health organization as the orthokeratinized variant of odontogenic keratocyst (OKC). However, studies have shown that OOC has a peculiar clinicopathologic aspects when compared with other developmental odontogenic cysts, especially OKC's. The orthokeratinized odontogenic...