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2018, Volume 34, Number 2, Page(s) 179-181     
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DOI: 10.5146/tjpath.2015.01334
Masson's Tumor Masquerading as a Papillary Adenocarcinoma on Fine Needle Aspiration Cytology: A Case Report
Department of Pathology, Lady Hardinge Medical College, DELHI, INDIA
Keywords: Masson's tumor, Papillary adenocarcinoma, Fine needle aspiration

Intravascular papillary endothelial hyperplasia, previously known as Masson's tumor, is a relatively uncommon reactive endothelial proliferation that occurs most commonly in the vessels of the head, neck, and extremities. We report a case of intravascular papillary endothelial hyperplasia in the neck in a 40-year-old female that was misdiagnosed as papillary adenocarcinoma on fine needle aspiration. The cytologic picture of intravascular papillary endothelial hyperplasia is diverse, making a pinpoint diagnosis of this entity difficult on fine needle aspiration.

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