Low-grade sinonasal adenocarcinoma



Sinonasal tract adenocarcinomas are uncommon malignant neoplasm that arises from the surface epithelium

or serous mucous glands.  Three main subtypes exist: 1) low-grade (well-differentiated) 2) high-grade

(poorly-differentiated) and 3) intestinal-type.  Shown here is a low-grade adenocarcinoma that shows

both glandular and papillary growth.  Glands are lined by a single layer of non-ciliated cuboidal or columnar cells.



1 minute clinical correlation

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