INTERSTITIAL GRANULOMATOUS DERMATITIS

By Gary M. White, MD


Interstitial granulomatous dermatitis (IGD) is somewhat a poorly defined condition that has gone by various names including palisaded neutrophilic granulomatous dermatitis, linear subcutaneous bands, interstitial granulomatous dermatitis with cutaneous cords and arthritis, rheumatoid papules, and Churg-Strauss granuloma. Linear, cordlike bands seen in the axillae are associated with arthritis.

Clinical

Multiple asymptomatic papules and plaques develop. In a small subset of patients, linear, prominent, red, cutaneous cords occur--often in the axilla. This is the so-called "rope sign". Patients are typically in their 50-60's with a female predominance.

References

Dermatology Online Journal 19(2)
Dermatology Online Journal 18(12)

An asymptomatic plaque of IGD as the initial manifestation of myeloma. JAMADerm 2015;151;1141]

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