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Atypical teratoid/rhabdoid tumor, intraoperative smear preparation x 400 (H&E stain) with arrows

Last updated on Friday, April 3 2009 by jdmiles

Atypical teratoid/rhabdoid tumor, intraoperative smear preparation x 400 (H&E stain) with arrows

Atypical Rhabdoid/Teratoid Tumors (ATRTs) are a type of embryonal tumors seen in infants and children. They are rare, malignant, and most commonly arise in the posterior fossa, although they can arise elsewhere. The tumor cells have the morphology shown here. Cells have an eccentrically placed nucleus, prominent nucleoli (unnecessarily large green arrow) and abundant cytoplasm which is eosinophilic and granular (unnecessarily large red arrow).

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