A case of mycosis fungoides of the upper gingiva

  • NISHIKAWA Masaya
    Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine
  • MIZUNO Daiki
    Department of Oral Surgery, Nagoya City University Graduate School of Medical Science
  • YAMAMOTO Noriyuki
    Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine
  • USAMI Kazutada
    Department of Oral and Maxillofacial Surgery, Chubu Rosai Hospital
  • SUZUKI Hideharu
    Department of Oral and Maxillofacial Surgery, Chubu Rosai Hospital
  • UEDA Minoru
    Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine

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Other Title
  • 上顎歯肉に発生した菌状息肉症―Stage I Aで診断が確定した1例―
  • ジョウガク シニク ニ ハッセイ シタ キンジョウ ソクニクショウ : Stage Ⅰ A デ シンダン ガ カクテイ シタ 1レイ

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Abstract

We report a rare case of mycosis fungoides arising in the right upper gingiva. A 58-year-old woman with a history of lumbar mycosis fungoides visited our clinic because of a reddish swelling in the right upper molar gingiva. A gingival biopsy was performed with the patient under local anesthesia. Histopathologically, the lesion showed dense infiltration of T cells with cellular atypia in the epithelial layer. Immunohistochemical studies for CD3, CD4, and CD5 showed positive staining, indicating that the phenotype was identical to that of the lumbar mycosis fungoides lesion. The final diagnosis was therefore mycosis fungoides of the right upper gingiva. There has been no evidence of stage progression as of 4 years after diagnosis.

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