Bednar tumor

Authors

• Sarah Kuruvila, Department of Histopathology, Royal Hospital, PB No. 1331, PC 111, Seeb, Muscat, Sultanate of Oman. Tel. +968 592888 Ext. 2731. Fax. +968 513630. E-mail: alexp{at}omantel.net.com
• Fatma A. Ramadan, Department of Histopathology, Royal Hospital, Muscat, Sultanate of Oman.

Abstract

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.

Article Type

Case Report

First Page

2016

Last Page

2017

Recommended Citation

Kuruvila, Sarah and Ramadan, Fatma A. (2004) "Bednar tumor," Saudi Medical Journal: Vol. 25: Iss. 12, Article 48.
DOI: https://doi.org/10.15537/1658-3175.2748