title: Lepra cells in synovial fluid of a patient with erythema nodosum leprosum.
mesh_terms: D001170:Arthritis, Infectious / Q000209:etiology; D001706:Biopsy; D004893:Erythema Nodosum / Q000150:complications / Q000473:pathology; D006801:Humans; D007918:Leprosy / Q000150:complications / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009166:Mycobacterium leprae / Q000302:isolation & purification; D012867:Skin / Q000473:pathology; D013582:Synovial Fluid / Q000166:cytology / Q000382:microbiology*