A Case of Bednar Tumor Occurring at the Site of Prior Vaccination.
- Author:
Dae Sung LEE
1
;
Jee Bum LEE
;
Seong Jin KIM
;
Young Ho WON
;
Seung Chul LEE
Author Information
1. Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea. schul@chonnam.chonnam.ac.kr
- Publication Type:Case Report
- Keywords:
Bednar tumor;
Trauma;
Vaccination
- MeSH:
Adult;
Arm;
Causality;
Dermatofibrosarcoma;
Factor XIIIa;
Female;
Humans;
S100 Proteins;
Skin;
Transplants;
Vaccination*;
Vimentin
- From:Korean Journal of Dermatology
2004;42(11):1514-1516
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Bednar tumor is a variant of dermatofibrosarcoma protuberans (DFSP). The clinical and histopathological findings of Bednar tumors are identical to DFSP except for the presence of melanin- containing cells scattered within the lesion, so called pigmented DFSP. There are no known precipitating or predisposing factors associated with this tumor. A 30-year-old woman was presented with a tumor on the right upper arm arising after trauma at the site of prior vaccination. Histologically, it shows large uniformed spindle shaped cells arranged in a cartwheel or storiform pattern mixed with scattered pigmented cells. On immunohistochemical staining, the tumor cells were positive for vimentin and CD34, but negative for factor XIIIa and S-100 protein. The patient was treated with a wide excision and skin graft. We report a case of Bednar tumor occuring after trauma at the site of prior vaccination.
