Thyroid & Adrenal
MC tumour of mandible is:
|A||Squamous cell carcinoma|
|D||Transitional cell carcinoma|
a. The most common tumor to involve the mandible is squamous cell carcinoma of the buccal mucosa secondarily invading the alveolus .
b. The most common primary tumor to involve the mandible is ameloblastoma.
c. Ameloblastoma is an entirely epithelial tumor arising from the dental lamina, Hertwig sheath, the enamel organ, or the lining of dental follicles/dentigerous cysts.
d. Ameloblastoma is the most common epithelial odontogenic tumor.
e. Ameloblastomas usually occur in individuals aged 20-40 years; however, the unicystic variant (see Surgical considerations, below) most often occurs in adolescents.
f. This lesion occurs in both the maxilla and mandible, but the posterior mandible is the most common location; only 20% of lesions are found in the maxilla.
g. The lesion is distributed equally between males and females.