Ghost Cell Odontogenic Carcinoma Arising in a Previous Calcifying Odontogenic Cyst: A Case Report and Review of Literature

• Published in: Head & neck pathology (Totowa, N.J.) Vol. 16; no. 3; pp. 828 - 835
• Main Authors: Ghita, Ioana, Nagai, Michael Y., Lubek, Joshua E., Stashek, Kristen M., Basile, John R., Price, Jeffery B., Papadimitriou, John C., Dyalram, Donita, Younis, Rania H.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2022
• Subjects: Carcinoma; Dentistry; Humans; Jaw Neoplasms; Medicine; Medicine & Public Health; Odontogenic Cyst, Calcifying; Odontogenic Cysts; Odontogenic Tumors; Oral and Maxillofacial Surgery; Otorhinolaryngology; Pathology; Sine qua non Radiology-Pathology; Malignant cellular features and invasion; Calcifying odontogenic cyst (COC); Dentinogenic ghost cell tumors (DGCT); Odontogenic ghost cell lesions (OGCL); Ghost cell odontogenic carcinoma (GCOC)
• ISSN: 1936-0568; 1936-055X; 1936-0568
• DOI: 10.1007/s12105-022-01445-6

Ghost cell odontogenic carcinoma (GCOC) is a rare malignant tumor of odontogenic origin, with only about 50 cases reported in the English literature so far. Histologically, it is characterized by ghost cells, dentinoid deposits, high grade malignant cellular features, and areas of necrosis and invasion. Having common histological features with other odontogenic ghost cell lesions (OGCL) like calcifying odontogenic cyst (COC) and dentinogenic ghost cell tumors, it is crucial to recognize GCOC malignant features, as it can be destructive and invasive, sometimes showing distant metastases and high recurrence rate. For this reason, it may entail more aggressive surgical approach and multimodal therapeutic regimen. Here we present a case report of GCOC arising in a previous COC, treated with surgical excision that showed persistence and recurrence after two years. The clinical and histological features of this rare occurrence are presented, in addition to the surgical approach, and a summary of literature review of OGCL.