title: Aberrant thymus and parathyroid gland presenting as a recurrent lateral neck mass: a case report.
abstract: We report an interesting case of a recurrent left lateral neck mass in a 6-year-old boy. When the tumor failed to disappear after a course of antibiotic therapy, it was excised. Histologic study revealed that the encapsulated mass contained a parathyroid gland embedded within a histologically normal thymus. The presence of thymic and parathyroid tissue within a single capsule supports the idea that these two structures have a common embryologic origin. The combination of thymic and parathyroid tissue in a neck mass in a patient so young is rarely reported.
authors.affiliation: Department of Pathology, Shiraz Medical School, Shiraz University of Medical Sciences, Iran. daneshbk@yahoo.com
authors.forename: Yahya
authors.initials: Y
authors.lastname: Daneshbod
authors.forename: Abbas
authors.initials: A
authors.lastname: Banani
authors.forename: Perikala V
authors.initials: PV
authors.lastname: Kumar
mesh_terms: D001706:Biopsy; D002648:Child; D002828:Choristoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006258:Head and Neck Neoplasms / Q000175:diagnosis; D006801:Humans; D008206:Lymphatic Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D010280:Parathyroid Glands; D012008:Recurrence; D013950:Thymus Gland; D016896:Treatment Outcome