A Case of Bednar Tumor.
- Author:
Yoo Seok JEONG
1
;
Yong Tae PARK
;
Tae Ho PARK
;
Jae Hak YOO
;
Kea Jung KIM
Author Information
- Publication Type:Case Report
- Keywords: Bednar tumor; Dermatofibrosarcoma protuberance
- MeSH: Adult; Dermatofibrosarcoma; Female; Follow-Up Studies; Humans; Recurrence; Shoulder
- From:Korean Journal of Dermatology 2003;41(4):496-498
- CountryRepublic of Korea
- Language:Korean
- Abstract: Bednar tumor is an uncommon pigmented subtype of dermatofibrosarcoma protuberans(DFSP). The histopathological finding is characterized by a typical storiform pattern composed of spindle-shaped cells resembling DFSP except for the presence of melanin-containing cells scattered within the lesion. The origin of the spindle-shaped cells and melanin-containing cells within the tumor remains unknown. We report a case of Bednar tumor in a 26-year-old woman on the right shoulder which was presented as asymptomatic, firm, black-colored, 1x1.5 cm nodule over 2 years. Histologically, the proliferated spindle-shaped cells showed a cartwheel pattern and stained positively with CD34, similar to those of a common DFSP. The tumor was widely excised and there is no evidence of recurrence from follow-up of 6 months.
