Ectopic hamartomatous thymoma. A distinctive benign lesion of lower neck.

  title={Ectopic hamartomatous thymoma. A distinctive benign lesion of lower neck.},
  author={Juan Rosai and Christos Limas and E M Husband},
  journal={The American journal of surgical pathology},
  volume={8 7},
Five cases of a distinctive tumor located in the soft tissues of the lower neck in adults are described. The lesion is characterized microscopically by the presence of four components: cellular areas made up of spindle elements; epithelial islands composed of solid nests, trabeculae and cysts; mature adipose tissue; and lymphocytes, sometimes arranged in a Hassall's corpuscle-like fashion. Electron microscopy and immunostaining for keratin showed that the spindle cell component was of… CONTINUE READING


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