診断に苦慮した頰部に生じた結石様石灰化物の1例

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  • A case of a calculus-like calcified body on the buccal region that proved difficult to diagnose
  • 診断に苦慮した頬部に生じた結石様石灰化物の1例
  • シンダン ニ クリョ シタ ホオブ ニ ショウジタ ケッセキ ヨウ セッカイカブツ ノ 1レイ

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<p>We report a case of a calculus-like calcified body on the buccal region. The patient was a 68-year-old man. He was referred to our hospital for further examination due to opaque images found in front of the left mandibular branch on panoramic radiography. Findings from the first visit confirmed a hard mass with a diameter of 10 mm under the left buccal mucosa. There were no subjective symptoms, and saliva outflow from the parotid papilla was good. CT findings showed a high-density structure (1300 HU) about 11 × 9 mm in size. It was circular and clearly demarcated on the outer side of the mandible, left of the masseter muscle anterior margin. The lesion was located slightly below the parotid duct, and there was no apparent continuity with the parotid duct. Extirpation of the mass was performed through an intraoral approach with the patient under general anesthesia. There was no contact between the lesion and the parotid duct. The excised substance was a calcified body 10 × 10 × 13 mm in size covered with a thin capsule of connective tissue. Histopathologically, the body comprised calcified material with a concentric laminated plate structure, while the surrounding capsule comprised fibrous tissue with plasma exudate and bleeding. No conduit structure was found. The final diagnosis was heterotopic calculus-like calcification. The postoperative course was uneventful.</p>

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