RT Journal Article SR Electronic T1 Erythema nodosum--diagnostic difficulties in the accident and emergency department. JF Journal of Accident & Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 211 OP 212 DO 10.1136/emj.13.3.211 VO 13 IS 3 A1 Hyland-McGuire, P A1 Guly, H YR 1996 UL http://emj.bmj.com/content/13/3/211.abstract AB Five patients presenting with erythema nodosum to an accident and emergency department are described. Initially they were misdiagnosed as cellulitis, infected insect bites, and minor trauma. Suspicious skin lesions or joint manifestations occurring either alone or especially if in combination should alert the wary clinician to the possibility of erythema nodosum and follow up in a few days may help to confirm the diagnosis.