A rare presentation of subcutaneous granuloma annulare in an adult patient; A case report

We are reporting a 33-year old woman with multiple skin-colored, firm, non-tender nodules of varying sizes (ranging between 1 and 1.5 cm), with limited mobility and normal overlying skin. They were distributed mainly on the palmer side of the fingers. History and laboratory examination indicated lack of systemic diseases such as diabetes, rheumatoid arthritis, and tuberculosis. Histopathologic examination confirmed the subcutaneous granuloma annulare (SGA) diagnosis by showing a normal epidermis with palisading granulomas (histocytes and giant cells) surrounding small areas of connective tissue degeneration (central necrobiosis) and mucin accumulation in the reticular dermis and subcutaneous tissues. The patient responded well to two-session course of intra-lesional steroid injections. SGA should be considered by dermatologists in the differential diagnosis of subcutaneous nodules even without concomitant systemic disease and with rare presentation.

Abstract licence: CC BY-NC-SA

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