PT  - JOURNAL ARTICLE
AU  - E J Soilleux
AU  - J Bowling
AU  - K Hollowood
TI  - CD4 expression by mast cells in mastocytosis: a case report
AID  - 10.1136/jcp.2009.064386
DP  - 2009 Jun 01
TA  - Journal of Clinical Pathology
PG  - 564--566
VI  - 62
IP  - 6
4099  - http://jcp.bmj.com/content/62/6/564.short
4100  - http://jcp.bmj.com/content/62/6/564.full
SO  - J Clin Pathol2009 Jun 01; 62
AB  - A 59-year-old man presented with a five-year history of an asymptomatic widespread truncal rash. Cutaneous biopsies showed mastocytosis, which was shown to be CD4-positive immunohistochemically. This potential diagnostic pitfall in the discrimination of mastocytosis from a variety of other haematopoietic neoplasms, particularly mycosis fungoides, is discussed.