title: Thyroid papillary carcinoma in lateral neck cyst: missed primary tumour or ectopic thyroid carcinoma within a branchial cyst?
abstract: We report a case of thyroid papillary carcinoma lying within a lateral cervical cyst for which no occult primary tumour of the thyroid was identified. We explore the possible diagnoses and include a discussion of how ectopic thyroid tissue may come to lie within a branchial cyst.
authors.affiliation: Department of Surgery, Royal Victoria Hospital, Belfast, Northern Ireland.
authors.forename: S
authors.initials: S
authors.lastname: Sidhu
authors.forename: T F
authors.initials: TF
authors.lastname: Lioe
authors.forename: B
authors.initials: B
authors.lastname: Clements
mesh_terms: D000328:Adult; D001935:Branchioma / Q000473:pathology* / Q000601:surgery; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D002828:Choristoma / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006258:Head and Neck Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D009382:Neoplasms, Unknown Primary; D013961:Thyroid Gland; D013964:Thyroid Neoplasms / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy