ArticleCureus2026
Biopsy Diagnosis Challenges in Oral Carcinoma Cuniculatum: A Case Report.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
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Abstract
Oral carcinoma cuniculatum (OCC) is an extremely rare variant of squamous cell carcinoma that often poses diagnostic difficulties on biopsy despite clinical indications of malignancy. We report the case of a 90-year-old woman who presented with a granular endophytic lesion on the maxillary gingiva, accompanied by numerous fistulas exuding white, keratin-like material. Computed tomography revealed marked bone resorption. Although two initial biopsies were inconclusive, a third biopsy targeting deeper tumor tissue adjacent to the resorbed bone confirmed the diagnosis of OCC. The presence of keratin-like discharge from the tumor may be a diagnostic clue, and obtaining tissue from deeply infiltrated regions is essential for accurate diagnosis.
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