Erythema Gyratum Repens (EGR) is often a paraneoplastic skin disorder. However, it can be caused by other conditions.

The classic appearance is a migrating erythematous lesion with serpiginous (gyrating) or concentric bands that are compared to the appearance of wood grain.

(1) Areas may show scaling.

(2) The lesion may be pruritic.


Causes of EGR:

(1) paraneoplastic

(2) autoimmune-related (SLE, rheumatoid arthritis, Sjogren's syndrome, resolving psoriasis, other)

(3) drug-related

(4) idiopathic

(5) mimic (another dermatologic condition that may resemble EGR)


Paraneoplastic EGR can occur with a variety of neoplasms including:

(1) lung

(2) breast

(3) esophagus

(4) renal cell carcinoma


The onset of the rash may precede recognition of the underlying cause. Its appearance should prompt a thorough examination of the patient with a goal to identify the underlying cause.

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