Histopathology report.
Gross: Mandibular tumor (mandibulectomy) specimen weighing 1820 grams and measuring 15 x 4 x 1 cm with thirteen (13) intact teeth present. A large ulcerated mass is noted measuring 17 x 16 x 15 cm, which appears relatively well-circumscribed. The tumor is replacing and expanding most of the mandibular bone. Serial sectioning of the tumor reveals multicystic cut surface filled with brown, hemorrhagic fluid together with intervening solid whitish-tan areas.
Mandibular tumor, resection: Ameloblastoma (mainly follicular / plexiform / cystic pattern). Tumor measures (17 cm) in maximum dimension (17 x 16 x 15 cm). All margins are negative. Nearest peripheral margin is 0.8 cm (8 mm). Negative for lymphovascular or perineural invasion. Bone expansion with extensive soft tissue involvement present. Both mandibular bony resection margins (condyles) are clear.
Comment:-The tumor is extensively sampled. It shows the microscopic features of classical / typical ameloblastoma. There is no evidence of nuclear atypia, tumor necrosis or increased mitotic activity. There are no features of malignant ameloblastoma or ameloblastic carcinoma in the sections examined. Excision appears complete.