Rheumatoid nodules simulating basal-cell carcinoma.
D002280:Basal Cell Carcinoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004431:Ear, External; D005139:Eyeglasses / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009666:Nose; D012217:Rheumatoid Factor; D012218:Rheumatoid Nodule / Q000175:diagnosis* / Q000473:pathology; D012883:Skin Ulcer / Q000209:etiology
D012217:Rheumatoid Factor