Is Odontogenic Keratocyst a tumor or a cyst?

An odontogenic keratocyst is a rare and benign but locally aggressive developmental cyst. It most often affects the posterior mandible and most commonly presents in the third decade of life.

Is Keratocyst a tumor?

The keratocystic odontogenic tumor (KCOT), formerly known as the odontogenic keratocyst (OKC), received its new designation in order to better convey its neoplastic nature [1]. It is a benign developmental odontogenic tumor with many distinguishing clinical and histologic features.

Is Odontogenic Keratocyst benign?

Odontogenic keratocysts (OKCs) are benign lesions of odontogenic origin accounting for about 10% of all odontogenic cysts and characterised by an aggressive behaviour.

Is Ameloblastoma the most common odontogenic tumor?

Ameloblastomas represent about 1% of all jaw tumors, but they are the second-most common odontogenic tumor. They are much more common in the lower jaw than in the upper jaw, and more common in the posterior mandible as compared to the anterior.

How can you tell the difference between Ameloblastoma and OKC?

Most OKCs showed smooth border and unilocular shape, while most ameloblastomas showed scalloped border and multilocular shape. Compared with ameloblastomas, OKCs showed greater frequency to be associated with impacted tooth, and were unlikely to cause tooth displacement and root resorption.

Is odontogenic keratocyst painful?

Clinically, odontogenic keratocysts (OKCs) generally present as a swelling, with or without pain. The cyst classically grows within the medullary spaces of the bone in an anteroposterior direction, causing expansion that is at first minimal.

What causes odontogenic keratocyst?

Odontogenic keratocyst (OKC) is the cyst arising from the cell rests of dental lamina. It can occur anywhere in the jaw, but commonly seen in the posterior part of the mandible. Radiographically, most OKCs are unilocular when presented at the periapex and can be mistaken for radicular or lateral periodontal cyst.

Can odontogenic keratocyst be malignant?

odontogenic keratocyst (OKC) is considered a benign cyst that can assume a locally aggressive and destructive behavior. Atypia of its lining is uncom- mon, and frank malignant degeneration is rare. Presence of these changes may remain clinically undetected and carry a significant influence on treatment and outcome.

Can ameloblastoma be fatal?

Mortality in ameloblastoma is a rare occurrence. Reported cases of mortality have attributed it to metastasis or/and malignant changes of the lesion, especially during a protracted course.

Can ameloblastoma be cancerous?

Complications. Rarely, ameloblastoma can become cancerous (malignant). Very rarely, ameloblastoma cells can spread to other areas of the body (metastasize), such as the lymph nodes in the neck and lungs. Ameloblastoma may recur after treatment.

How can you distinguish between ameloblastoma and odontogenic Keratocyst?

How can you distinguish ameloblastoma from odontogenic Keratocyst?

On CT keratocystic odontogenic tumours usually show lower CT density than ameloblastomas due to their different content; moreover CT density in keratocystic odontogenic tumours is usually more heterogeneous than in ameloblastomas and the presence of an high density areas within the lesion is highly suggestive of …