Sarcoidosis.
D001168:Arthritis / Q000150:complications; D001706:Biopsy; D002675:Child, Preschool; D004893:Erythema Nodosum / Q000150:complications; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012507:Sarcoidosis / Q000150:complications / Q000473:pathology; D013583:Synovial Membrane / Q000473:pathology