title: Fine needle aspiration cytology of gouty tophus in a patient with rheumatoid arthritis.
mesh_terms: D015210:Arthritis, Gouty / Q000150:complications / Q000473:pathology*; D001172:Arthritis, Rheumatoid / Q000150:complications*; D001707:Biopsy, Needle; D003460:Crystallization; D005260:Female; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D014527:Uric Acid / Q000032:analysis*
chemical_list: D014527:Uric Acid