片側性発汗障害を契機に発見された胸椎外骨腫の1例 A Case of Unilateral Sweating Dysfunction due to a Spinal Osteochondroma
54歳の女性。49歳頃より左下肢の発汗低下を自覚した。発汗試験(ミノール法)では左下腹～背部, 左下肢に発汗低下を認めた。皮膚生検では汗腺組織を含め, とくに異常所見を認めなかった。胸部MRI, 胸部CTを施行したところ, 胸髄第6-7レベルの左側に外骨腫を認めた。これらの発汗障害は, 外骨腫が左側の交感神経を圧排することにより生じたと考えられた。
A 54-year-old female noticed a sweating dysfunction on her left thigh during summer over a period of 5 years. She experienced no other symptoms, neurological disturbances, or any cutaneous disease. Sweat test (Minor) revealed that the left trunk and left leg did not sweat while the right side sweat normally. MRI of the head revealed no evidence of lesions or neurological disorders. Laboratory data or physical findings were not significant. Skin biopsies were obtained from both sweating and non-sweating areas, with no pathological findings from either area. Thoracic MRI revealed a tumor approximately 1.2 cm × 1.8 cm at the 6th and the 7th thoracic level. CT subsequent to the MRI showed that the tumor was an osteochondroma, a benign bone tumor, compressing the spinal cord from the left dorsal side where the left sympathetic ganglia were located. The sweating dysfunction in this patient is considered to be a sympathetic disorder due to the presence of the spinal osteochondroma.
- 西日本皮膚科 = The Nishinihon journal of dermatology
西日本皮膚科 = The Nishinihon journal of dermatology 66(6), 575-577, 2004-12-01
Western Division of Japanese Dermatological Association