Ectopic Hamartomatous Thymoma

Ectopic Hamartomatous Thymoma

Khin Thway, BSc, MBBS, FRCPath

In this case of ectopic hamartomatous thymoma, the lesion is circumscribed, as is typical. The admixture of cellular elements image and mature adipose tissue image is discernible at low power.

All 3 components are illustrated in this example. Mature fat is intermixed with sheets of bland spindle cells, and epithelial elements are interspersed, here, as squamous islands image.



  • Ectopic hamartomatous thymoma (EHT)


  • Rare benign tumor composed of spindle, epithelial, and adipose tissue elements that occurs mainly in lower neck region of adult men

Jul 9, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Ectopic Hamartomatous Thymoma
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