title: Familial occurrence of thymoma.
mesh_terms: D000367:Age Factors; D001344:Autopsy; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D013945:Thymoma / Q000235:genetics* / Q000473:pathology; D013950:Thymus Gland / Q000473:pathology; D013953:Thymus Neoplasms / Q000235:genetics* / Q000473:pathology