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Sarcoidosis with Small Syringotropic Granulomas Presenting Clinically as a Pigmented Purpuric Dermatosis: Inconspicuous Clinical and Histopathologic Clues to Systemic Illness.

08:00 EDT 24th March 2020 | BioPortfolio

Summary of "Sarcoidosis with Small Syringotropic Granulomas Presenting Clinically as a Pigmented Purpuric Dermatosis: Inconspicuous Clinical and Histopathologic Clues to Systemic Illness."

Sarcoidosis is a multisystem granulomatous disease with a myriad of clinical manifestations and a predilection to involve the lungs, eyes, lymph nodes and skin. A 38 year old man presented to dermatology with a history of progressive dyspnea, pulmonary consolidations on chest x-ray, and hilar adenopathy on computed tomography (CT) scan. Skin exam revealed asymptomatic, yellow to brown macules on the right lower extremity. Biopsy of a lesion showed diminutive syringotropic granulomas and perivascular hemosiderin; stains for bacteria, mycobacteria and fungi were negative. Subsequent fine needle aspiration of a hilar mass revealed non-necrotizing epithelioid granulomas further supporting a diagnosis of sarcoidosis. The patient was placed on systemic steroids and had improvement of his pulmonary symptoms and stabilization of his hilar lymphadenopathy without resolution of his pigmented purpuric dermatosis (PPD) like lesions. Only three prior cases of syringotropic sarcoidosis have been reported; however, the biopsies had revealed conspicuously large granulomas in contrast with the small granulomas in our case, and none of the prior patients had clinical examination findings that mimicked PPD. Recognition of rare dermatologic and histologic appearances of sarcoidosis is paramount as cutaneous sarcoidosis may be the harbinger of a systemic illness, which requires a timely diagnosis. This article is protected by copyright. All rights reserved.

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This article was published in the following journal.

Name: Journal of cutaneous pathology
ISSN: 1600-0560
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