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Updated: May 18, 2026

Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
Published on: February 28, 2019
Polymorphous low-grade adenocarcinoma located in the maxillary sinus
Demet Etıt1, Deniz Altinel, Ümit Bayol
1Department of Pathology, İzmir Tepecik Education and Research Hospital, İzmir, Turkey. demetetit@yahoo.com
Abstract:
Polymorphous low-grade adenocarcinoma is a malignant epithelial tumour with low metastatic rate and infiltrative growth pattern. The palate is the most common site. Paranasal sinuses are uncommon venues for polymorphous low-grade adenocarcinoma. Here, we report a polymorphous low-grade adenocarcinoma case of the maxillary sinus, a very rare location. Although it is a low grade malignancy, progression may develop after a long time. Therefore, polymorphous low-grade adenocarcinoma should be kept in mind in the differential diagnosis even in rare sites in the head and neck.
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