PT  - JOURNAL ARTICLE
AU  - Kuruvila, Sarah
AU  - Ramadan, Fatma A.
TI  - Bednar tumor
DP  - 2004 Dec 01
TA  - Saudi Medical Journal
PG  - 2016--2017
VI  - 25
IP  - 12
4099  - http://smj.org.sa/content/25/12/2016.short
4100  - http://smj.org.sa/content/25/12/2016.full
SO  - Saudi Med J2004 Dec 01; 25
AB  - Pigmented dermatofibrosarcoma protuberance DSFP, also known as Bednar tumor or formerly known as pigmented storiform neurofibroma is a rare variant of DSFP. Bednar first described it in 1957. The histology is striking because of the presence of multipolar pigment laden dendritic cells scattered among spindle shaped cells with a storiform pattern, the latter being characteristic of DSFP. The spindle cells are positive for CD34, and Vimentin and negative for S100. The pigment represents melanin. We describe such a tumor because of its rarity and very striking microscopic appearance.