title: A case of dermatomyositis with esophageal fistula in whom blind mucosal biopsy detected occult oropharyngeal carcinoma.
abstract: We present a case of anti-transcription intermediary factor 1 (anti-TIF-1) antibody-positive dermatomyositis with concomitant esophageal fistula and extensive truncal erythema. The characteristic cutaneous features and presence of anti-TIF-1 antibodies were predictive for internal malignancy. However, repeated examinations for internal malignancy showed none, and blind mucosal biopsy was needed to diagnose oropharyngeal carcinoma. We should note the possibility of occult nasopharyngeal carcinoma and consider performing blind mucosal biopsy in dermatomyositis with esophageal fistula, especially with extensive truncal erythema.
authors: Department of Dermatology, Shiga University of Medical Science, Otsu, Japan.
authors: Miho
authors: M
authors: Kabuto
authors: Department of Dermatology, Shiga University of Medical Science, Otsu, Japan.
authors: Noriki
authors: N
authors: Fujimoto
authors: Department of Dermatology, Shiga University of Medical Science, Otsu, Japan.
authors: Kazuya
authors: K
authors: Teramura
authors: Department of Otorhinolaryngology, Shiga University of Medical Science, Otsu, Japan.
authors: Midori
authors: M
authors: Tateishi
authors: Department of Dermatology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors: Yasuhito
authors: Y
authors: Hamaguchi
authors: Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
authors: Manabu
authors: M
authors: Fujimoto
authors: Department of Dermatology, Shiga University of Medical Science, Otsu, Japan.
authors: Toshihiro
authors: T
authors: Tanaka
keywords: Anti-transcription intermediary factor 1; Blind biopsy; Dermatomyositis; Esophageal fistula; Oropharyngeal carcinoma; Truncal erythema