What is the most common Ameloblastoma?
The most common ameloblastoma is the solid/multicystic/conventional type, making up about 91% of all cases of ameloblastoma. It is slow growing and runs a benign course. Histologically, the solid/multicystic/conventional ameloblastoma displays two distinct histological patterns: the follicular and plexiform types.
Is Ameloblastoma malignant?
Ameloblastoma is a rare disorder of the jaw involving abnormal tissue growth. The resulting tumors or cysts are usually not malignant (benign) but the tissue growth may be aggressive in the involved area.
What happens if ameloblastoma is left untreated?
Ameloblastoma often causes no symptoms, but signs and symptoms may include pain and a lump or swelling in the jaw. If left untreated, the tumor can grow very large, distorting the shape of the lower face and jaw and shifting teeth out of position.
What is Ameloblastic carcinoma?
Ameloblastic carcinoma is a rare malignant (cancerous) tumor that normally begins in the bones of the jaw. It is classified as an odontogenic tumor, meaning that it arises from the epithelium that forms the enamel of the teeth.
How does Ameloblastic carcinoma develop in the mouth?
Ameloblastic carcinoma may develop from the epithelial tissue that remains after the development of the teeth and associated structures. In some cases, it results from malignant transformation of an existing ameloblastoma or a benign odontogenic cyst.
Is there a single definitive criterion for Ameloblastic Carcinoma?
A single definitive microscopic criterion for ameloblastic carcinoma is elusive. The histological features may vary, and in order to ascertain a diagnosis of ameloblastic carcinoma, it is necessary to make a careful examination of the submitted tissues, especially in cases in which there is limited material.
Is there a recurrence of ameloblastic carcinoma after surgery?
Radiation therapy may also be performed before surgery to decrease tumor size. Recurrence of ameloblastic carcinoma after surgical removal may occur and may involve various organs in the body with or without recurrence in the jaw. Most commonly recurrences are seen in the same area as the original tumor.
What are the histologic features of an ameloblastoma?
Rare epithelial odontogenic tumor with histologic features of an ameloblastoma with marked cytologic atypia Less commonly arise from pre-existing ameloblastoma, and are considered secondary or dedifferentiated lesions May be painful as they cause expansion of the jaw, grow rapidly and perforate the cortex