Cutaneous sarcoidosis in an old post-surgical scar.

Infiltration of pre-existing scars by sarcoidal granulomas is uncommon. The pathogenesis remains bizzare and the significance of this rather peculiar symptom remains neglected. Incidence of sarcoid specific cutaneous lesion with or without systemic involvement is 1.9/1 lakh population with female preponderance. The case of a 48year old female with complaints of fever, myalgia and a painful surgical scar with a past history of open cholecystectomy two decades back is reported. Tissue biopsy after scar revision surgery revealed abundant non-caseating granulomas with asteroid bodies establishing a diagnosis of cutaneous sarcoidosis with an unremarkable systemic examination. Triamcinalone infiltration of the revised scar was performed with a consideration of short course of steroids at the earliest sign of inflammation/systemic involvement. In the absence of systemic involvement, isolated cutaneous sarcoidosis could be an early sign of systemic progression which requires close monitoring and follow up. [ABSTRACT FROM AUTHOR]