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Semin Cutan Med Surg. 1999 Mar;18(1):47-55.

Diagnosis: erythema nodosum or not?

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  • 1Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.

Abstract

Erythema nodosum is the final common pathway to a myriad of insults and is thought to be a hypersensitivity reaction centered in the subcutis. To recognize the histological spectrum of erythema nodosum, one must be aware of the morphologic chronology of the disease (early, fully developed, late) and its clinical variants (erythema nodosum migrans). This article reviews the range of changes that can be seen in this prototype of a septal panniculitis and describes the diversity that may be accepted in the diagnosis. Differential diagnoses at each stage of disease development are discussed. The criteria elaborated should assist the pathologist in answering the clinician's query, "Erythema nodosum, or not?"

PMID:
10188842
[PubMed - indexed for MEDLINE]
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