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Endocrine Pathology

, Volume 22, Issue 4, pp 200–205 | Cite as

Unique Growth Pattern in Papillary Carcinoma of the Thyroid Gland Mimicking Adenoid Cystic Carcinoma

  • Zubair W. Baloch
  • Jeremy P. Segal
  • Virginia A. LiVolsi
Article

Abstract

We report here three cases of papillary thyroid carcinoma (PTC) with hyaline globules as seen in adenoid cystic carcinoma of the salivary glands. This unique growth pattern was seen in two cases of columnar cell and one case of cribriform morular variant of PTC. Fine-needle aspiration was performed in two cases. By immunohistochemistry, all cases demonstrated expression of TTF-1 and thyroglobulin confirming follicular cell derivation. It is important to be aware of this unusual growth pattern in thyroid carcinomas; immunohistochemistry is warranted for rendering accurate cytopathologic and histopathologic diagnosis.

Keywords

Columnar cell Adenoid cystic Growth pattern 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Zubair W. Baloch
    • 1
  • Jeremy P. Segal
    • 1
  • Virginia A. LiVolsi
    • 1
  1. 1.Department of Pathology & Laboratory MedicineUniversity of Pennsylvania Medical CenterPhiladelphiaUSA

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