Two cases of pleomorphic adenoma of the lip

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  • MORITANI Norifumi
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Hospital Department of Oral and Maxillofacial Surgery, Kagawa Rosai Hospital
  • YAMADA Tomohiro
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • MISHIMA Katsuaki
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Hospital
  • MATSUMURA Tatsushi
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Hospital Department of Oral and Maxillofacial Surgery, Kagawa Rosai Hospital
  • UENO Takaaki
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • SUGAHARA Toshio
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

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Other Title
  • 口唇に生じた多形腺腫の２例
  • コウシン ニ ショウジタ タケイ センシュ ノ 2レイ

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Abstract

Pleomorphic adenoma (PA) is the most common salivary gland tumor. Tumors originating from the major salivary glands are frequently located in the parotid gland. In contrast, tumors originating from the minor salivary glands are frequently found in the palatal region. PA occurring in the lips, especially the lower lip, is relatively rare.<BR>In this paper, we present 2 cases of PA arising in the upper lip and lower lip, respectively.<BR>The first case arose in a 72-year-old woman. The patient visited a dental clinic because of swelling of the left side of the upper lip and was referred to our department. Palpation revealed a painless movable mass. The lesion was 15 mm in diameter and located in the subcutaneous tissue on the left side of the upper lip.<BR>The second case was in a 60-year-old man. This patient visited a dental clinic because of swelling of the left side of the lower lip and was referred to our department. Palpation revealed a painless movable mass. The lesion was 13 mm in diameter and arose in the subcutaneous tissue of the left side of the lower lip.<BR>The clinical diagnosis in both cases was a benign tumor of the lip. Surgical resection was performed under local anesthesia in both patients, and the histopathological diagnoses confirmed PA. In both patients, the upper and lower lips healed well after the operation. About 1 and a half years after surgery, there was no evidence of recurrence.

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