ectopic hamartomatous thymoma

ectopic hamartomatous thymoma

A rare tumour of the soft tissues of the neck thought to derive from branchial arch tissue, which histologically resembles fetal, mature, or involuted thymus and mediastinal thymomas and ranges from completely benign to metastasisingly malignant.

Clinical findings
Affects adult males.

Prognosis
Recurs, but doesn’t metastasise.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Ectopic hamartomatous thymoma (EHT) is a benign tumor that occurs with extreme rarity in the lower neck.
Chan, "Ectopic hamartomatous thymoma," in WHO Classification of Tumours of Soft Tissue and Bone, C.
Gnepp, "Ectopic hamartomatous thymoma," in Diagnostic Surgical Pathology of the Head and Neck, pp.