What is the most likely diagnosis in this 50-year-old woman?: (A) Metastasis, (B) Onychomycosis, (C) Psoriasis, (D) Thromboangiitis obliterans
Answer is A. Answer A. MetastasisFollowing radiography that revealed a lytic lesion of the terminal phalynx, the firm 2-cm lesion with a scab in the center was biopsied and found to represent a metastasis from follicular thyroid carcinoma.