Acquired Coccygeal Nodule Due to Repeated Stimulation by a Bicycle Saddle
| Autor: | Atsushi Nakamura, Wakatoshi Matsunaga, Yuji Inoue, Tomomichi Ono, Tsuyoshi Ishihara |
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| Rok vydání: | 1995 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Cumulative Trauma Disorders Coccyx Radiography education Poison control Acanthosis Dermatology Skin Diseases Lesion medicine Humans Child Spinal Dysraphism Saddle business.industry Spina bifida Nodule (medicine) General Medicine Anatomy medicine.disease Bicycling Surgery medicine.anatomical_structure Female medicine.symptom business |
| Zdroj: | The Journal of Dermatology. 22:365-369 |
| ISSN: | 0385-2407 |
| DOI: | 10.1111/j.1346-8138.1995.tb03406.x |
| Popis: | Four Japanese male students, aged 14, 16, 18 and 19, were found to have a nodule in their coccygeal regions. The typical lesion was a rugby-ball-shaped, normal-colored or slightly erythematous nodule measuring 5 to 6 cm in its long axis. Histopathologically, it showed hyperplasia of collagen fibers and slight acanthosis. All four students rode to school by bicycle over long distances and long periods; three of them developed the nodule after they started bicycle riding to school. We found that the nodule shape corresponded to the saddle of the bicycle. X-ray abnormalities included bending or anterior dislocation of the coccyx in all cases and spina bifida in two cases. These nodules may have developed as a result of irritation of this region by the saddle of the bicycle. |
| Databáze: | OpenAIRE |
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