Giant expansive mass in the maxillary sinus
Year: 2025
Type: article
Study design: Case Report
Abstract: Proliferating Trichilemmal Cyst (PTC) is a benign follicular tumor. We describe a 32-year-old male with progressive nasal obstruction, recurrent epistaxis, and periorbital swelling. Imaging revealed a soft-tissue mass with orbital extension, initially suggestive of a vascular lesion. Histopathology and immunohistochemistry confirmed PTC with mural vascular malformation. This case represents the first reported case of PTC in the maxillary sinus, underscoring the importance of considering PTC in the differential diagnosis of sinonasal tumors.
Authors: Eliandro de Souza Freitas, Tiago Novaes Pinheiro, Carolina Silvano Vilarinho da Silva, Isabelle Dutra de Castro, Bianca Faria de Lima
Institutions: Universidade de Cuiabá, Universidade do Estado do Amazonas
Language: English
Topic: Cancer and Skin Lesions
Subfield: Dermatology
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $1,650
OpenAlex ID: W4415613985
