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A 35-year-old man presented with a 3-year history of arthralgia and purple coloration of the skin of his fingers and feet.Hand and foot radiography showed cystic bone lesions on phalanges suggestive of sarcoidosis. Lab tests revealed increased liver enzymes. Liver MRI evidenced an enlarged liver and retroperitoneal lymphadenopathy. Histological analysis of the finger skin, lymph nodes and liver demonstrated...
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