Intra-oral basal cell carcinoma

Bhandary

2014

Indian J Surg Oncol

Amelobasltoma is a benign neoplasm of the jaw bones that originate from the odontogenic epithelium. They are more common on the mandible than the maxilla. Rarely such tumours arise outside these bones, when they are termed extraosseous or peripheral ameloblastoma. We report a case of extraosseous ameloblastoma in a 30 year old woman, who presented with a painless lesion on the upper gingiva. The lesion was excised completely and the histopathology was suggestive of extraosseous ameloblastoma.

Section: Discussionmentioning

confidence: 99%

Extraosseous Ameloblastoma of Maxillary Gingiva- A Case Report

Bhandary

2014

Indian J Surg Oncol

“…One case was a BCC of the skin [32] and another represented a metastatic BCC [33]. One case by Edmondson et al [34] may have represented an IOBCC, but the lesion invaded into bone and no retraction artifact was noted. This case was interpreted as ameloblastic carcinoma by Shumway et al [6].…”

Section: Discussionmentioning

confidence: 99%

Intraoral Basal Cell Carcinoma, a Rare Neoplasm: Report of Three New Cases with Literature Review

Woods

Cohen

Islam

et al. 2013

Head and Neck Pathol

Diagnostic Cytopathology

“…5 As a whole, ameloblastic carcinoma has histological features similar to squamous cell carcinoma and/or basal cell carcinoma. 1,[6][7][8] In addition, secondary peripheral ameloblastic carcinoma contains variable degrees of squamous differentiation, an extensive network of tumor islands and nests of keratin. 2 The present case met the diagnostic criteria for peripheral ameloblastic carcinoma.…”

Section: Discussionmentioning

confidence: 99%

“…Histologically, peripheral ameloblastic carcinoma resembles squamous cell carcinoma and/or basal cell carcinoma. 1,[6][7][8] The difference in cytological features between peripheral ameloblastic carcinoma and basal cell carcinoma is the absence of melanin granules in the former. 19 Therefore, for the cytological diagnosis of peripheral ameloblastic carcinoma, it is necessary to consider the features of basal cell carcinoma, squamous cell carcinoma, and epithelial dysplasia.…”

Section: Discussionmentioning

confidence: 99%

Cytopathologic features of secondary peripheral ameloblastic carcinoma: A case report

Fujita

Anami

Satoh

et al. 2011

Peripheral ameloblastic carcinoma is an extremely rare odontogenic tumor derived from the remnants of dental lamina and/or mucosal epithelium of the oral mucosa. We present a case of secondary peripheral ameloblastic carcinoma of the mandibular gingiva. The patient was a 71-year-old man with gingival swelling and persistent bleeding. Exfoliative cytology revealed cohesive clusters composed of basaloid cells with nuclear atypia and various forms of keratinized cells of dysplastic squamous appearance. Some cell groups had a peripheral palisade. Histology of the biopsy and surgically removed specimens revealed characteristic features resembling squamous cell carcinoma, basal cell carcinoma, and benign follicles of ameloblastoma. These neoplastic structures, as well as proliferation and elongation of the mucosal epithelium, comprised an extensive network. The varied cytopathologic findings may be related to proliferation and transformation of basal cells of the mucosal epithelium toward ameloblastic carcinoma and variable squamous differentiation.