Journals / EurAsian Journal of Oral and Maxillofacial Surgery / 2026 / Volume: 5 Issue: 3

Clear Cell Odontogenic Carcinoma of the Mandible Incidentally Detected During Routine Dental Examination: A Case Report With 8-Year Follow-up

Rutin Diş Muayenesi Sırasında Tesadüfen Saptanan Mandibular Berrak Hücreli Odontojenik Karsinom: 8 Yıllık Takipli Bir Olgu Sunumu

Keita Kano(Uji Takeda Hospital)0009-0007-7176-607X
Hideki Yoshimatsu(Japanese Red Cross Kyoto Daiichi Hospital)0000-0002-5545-1218
Pages
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Publication Date
2026-09-27
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

CCOC should be included in the differential diagnosis of asymptomatic mandibular radiolucent lesions, and long-term follow-up is required.

📌 3 Key Takeaways

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Objective & Hypothesis:Clear cell odontogenic carcinoma (CCOC) is a rare malignant odontogenic epithelial tumor that primarily affects the mandible.
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Key Findings & Data:Marginal mandibulectomy was performed, and histopathological examination demonstrated infiltrative nests of clear and polygonal epithelial cells containing abundant diastase-sensitive PAS-positive intracytoplasmic glycogen granules.
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Conclusion & Impact:CCOC should be included in the differential diagnosis of asymptomatic mandibular radiolucent lesions, and long-term follow-up is required.
🔬Design:Case Report
📍Scope:Comprehensive Sample
⚙️Variables:clear cell odotogenic carcinoma · mandible · case report

Abstract

Clear cell odontogenic carcinoma (CCOC) is a rare malignant odontogenic epithelial tumor that primarily affects the mandible. Due to its nonspecific clinical and radiographic features, preoperative diagnosis is often difficult. We report an asymptomatic case of CCOC in an elderly woman in her eighties, in whom a mandibular radiolucent lesion was incidentally detected during routine dental examination. Imaging revealed a well-defined radiolucent lesion with lingual cortical bone perforation. Incisional biopsy suggested CCOC or a salivary gland tumor. Marginal mandibulectomy was performed, and histopathological examination demonstrated infiltrative nests of clear and polygonal epithelial cells containing abundant diastase-sensitive PAS-positive intracytoplasmic glycogen granules. Immunohistochemical staining was positive for cytokeratin (AE1/AE3) and p63, supporting the diagnosis of CCOC. No recurrence or metastasis has occurred during 8 years of follow-up. CCOC should be included in the differential diagnosis of asymptomatic mandibular radiolucent lesions, and long-term follow-up is required.

Özet

Berrak hücreli odontojenik karsinom (CCOC), esas olarak mandibulayı etkileyen nadir bir malign odontojenik epitelyal tümördür. Spesifik olmayan klinik ve radyografik özellikleri nedeniyle, preoperatif tanı çoğu zaman zordur. Rutin diş muayenesi sırasında mandibulada radyolüsent bir lezyonun tesadüfen saptandığı, seksenli yaşlarında yaşlı bir kadında asemptomatik CCOC olgusunu sunuyoruz. Görüntülemede, lingual kortikal kemik perforasyonu ile birlikte iyi sınırlı bir radyolüsent lezyon saptandı. İnsizyonel biyopsi sonucunda CCOC veya tükürük bezi tümörü düşünüldü. Marjinal mandibulektomi uygulandı ve histopatolojik incelemede, bol miktarda diastaza duyarlı PAS-pozitif intrasitoplazmik glikojen granülleri içeren berrak ve poligonal epitelyal hücrelerden oluşan infiltratif yuvalanmalar gösterildi. İmmünohistokimyasal boyamada sitokeratin (AE1/AE3) ve p63 pozitifliği saptanarak CCOC tanısı desteklendi. Sekiz yıllık takip süresince nüks veya metastaz gelişmedi. CCOC, asemptomatik mandibular radyolüsent lezyonların ayırıcı tanısında göz önünde bulundurulmalı ve uzun süreli takip yapılmalıdır.

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Cite This Article

Kano, K., Yoshimatsu, H. (2026). Clear Cell Odontogenic Carcinoma of the Mandible Incidentally Detected During Routine Dental Examination: A Case Report With 8-Year Follow-up. EurAsian Journal of Oral and Maxillofacial Surgery, Volume: 5 Issue: 3. https://doi.org/10.66702/ejoms.2014729

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References (10)

  1. Hansen LS, Eversole LR, Green TL, Powell NB. Clear cell odontogenic tumor--a new histologic variant with aggressive potential. Head Neck Surg.1985;8:115–123.
  2. Waldron CA, Small IA, Silverman H. Clear cell ameloblastoma--an odontogenic carcinoma. J Oral Maxillofac Surg.1985;43:707-717.
  3. Asiri Z, Alshahrani A, Hameed MS, Assiri K, Assiri HA. Diagnostic Dilemma of Clear Cell Odontogenic Carcinoma Mimicking Various Pathological Entities: A Case Report and Literature Review. Clin Case Rep.2025;13: e70752.
  4. WHO Classification of Tumours Editorial Board. Head and Neck Tumours. 5th ed. Lyon: International Agency for Research on Cancer;2024.
  5. Guastaldi FPS, Faquin WC, Gootkind F, Hashemi S, August M, Iafrate AJ, et al. Clear cell odontogenic carcinoma: a rare jaw tumor. A summary of 107 reported cases. Int J Oral Maxillofac Surg.2019;48(11):1405–1410.
  6. Verdeja R, Stauffer E, Lombardi T. Unusual Presentation of Clear Cell Odontogenic Carcinoma: Case Report and Literature Review. Diagnostics (Basel).2022;12:1019.
  7. Ullah A, Cullen C, Mattox SN, Kozman D, Patel N, Sharma S, et al. Clear cell odontogenic carcinoma: a series of three cases. Dent J (Basel).2022;10(3):34.
  8. Sharma G, Mittal A. Diagnostic Utility of EWSR1 in Clear Cell Odontogenic Carcinoma: A Systematic Review. Indian J Otolaryngol Head Neck Surg.2024;76:2227–2236.
  9. Ferreira S, Faverani LP, Santos GMD, Martins EP, Garcia Júnior IR. Clear cell odontogenic carcinoma of the mandible: a treatment strategy. J Appl Oral Sci.2018;26: e20160645.
  10. Labrador AJP, Marin NRG, Valdez LHM, Valentina MP, Sanchez KBT, Ibazetta KAR, et al. Clear cell odontogenic carcinoma a systematic review. Head Neck Pathol.2022;16(3):838–848.