Lymphoid hamartoma.
D000293:Adolescent; D000328:Adult; D001365:Axilla; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006222:Hamartoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology*; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000473:pathology*; D006689:Hodgkin Disease / Q000175:diagnosis; D006801:Humans; D008208:Lymphatic System / Q000473:pathology*; D008223:Lymphoma / Q000175:diagnosis; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged; D011859:Radiography; D012782:Shoulder