title: Nodular secondary syphilis.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009181:Mycoses / Q000175:diagnosis; D012507:Sarcoidosis / Q000175:diagnosis; D013588:Syphilis Serodiagnosis; D013591:Syphilis, Cutaneous / Q000175:diagnosis*