What is the most likely diagnosis in this 50-year-old woman?
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.
Metastasis
Onychomycosis
Psoriasis
Thromboangiitis obliterans
Immunology and Rheumatology