Histiocytic medullary reticulosis presenting as rheumatoid arthritis.
D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008206:Lymphatic Diseases / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008875:Middle Aged