title: A case of papillary carcinoma arising in ectopic thyroid tissue within a branchial cyst with neck node metastasis.
abstract: We describe the interesting case of a young man who presented with a lateral neck node that was diagnosed as a branchial cyst. Histopathology of the excised node revealed that a papillary carcinoma was located within thyroid tissue, which in turn was located within a branchial cyst. A total thyroidectomy with local lymph node clearance was performed. Histology identified a normal thyroid gland, but a papillary carcinoma in one of the excised lymph nodes was consistent with a metastasis. To our knowledge, this is only the second reported case of a thyroid carcinoma arising in ectopic thyroid tissue that metastasized in the neck.
authors.affiliation: Department of Surgery, Erne Hospital, Enniskillen, County Fermanagh, Northern Ireland.
authors.forename: Rao K
authors.initials: RK
authors.lastname: Mehmood
authors.forename: Shaik I
authors.initials: SI
authors.lastname: Basha
authors.forename: Essan
authors.initials: E
authors.lastname: Ghareeb
mesh_terms: D000328:Adult; D001935:Branchioma / Q000175:diagnosis* / Q000601:surgery; D002291:Carcinoma, Papillary / Q000175:diagnosis* / Q000601:surgery; D002828:Choristoma / Q000473:pathology*; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008198:Lymph Nodes / Q000601:surgery; D008207:Lymphatic Metastasis; D008297:Male; D013961:Thyroid Gland; D013965:Thyroidectomy; D016896:Treatment Outcome