Ghost Cell Odontogenic Carcinoma
Also written as: GCOC — Ghost Cell Odontogenic Carcinoma
A rare malignant odontogenic epithelial neoplasm characterised by ghost cells and a locally aggressive, potentially metastasising behaviour.
Full Definition
Ghost cell odontogenic carcinoma (GCOC) is the malignant counterpart of the calcifying odontogenic cyst and dentinogenic ghost cell tumour. It is characterised histologically by sheets of epithelium containing aberrant ghost cells with varying degrees of cytological atypia and mitotic activity. The lesion may arise de novo or transform from a pre-existing benign ghost cell lesion. Because multiple ghost cell–containing entities exist within odontogenic pathology, editors must ensure the specific diagnosis is rendered precisely and not conflated with benign counterparts. GCOC is listed separately in the WHO Classification of Head and Neck Tumours.
Usage
Usage note: Always expand GCOC on first use. Never use interchangeably with 'ghost cell tumour' or 'calcifying odontogenic cyst'.
In Context
- "The authors emphasised that ghost cell odontogenic carcinoma must be distinguished from its benign precursors by the presence of frank cytological atypia." — Journal article manuscript
- "The editor queried whether 'ghost cell tumour' in the discussion referred to the benign or malignant variant." — Peer review correspondence