Adenoid Cystic Carcinoma of Sinonasal Mass: A Rare Case Report

Adenoid cystic carcinoma (ACC) is a rare tumor, contributing to less than 1% of head and neck malignancies. It involves the salivary gland, nose, and paranasal sinus. Sinonasal malignancies constitute 1–2% of all malignancies. Out of all sinonasal malignancies, sinonasal adenoid cystic carcinoma (SNACC) is the third most common SNACC and is a slow-growing tumor that manifests in later stages. SNACC can extend into intracranial and intradural space, therefore it requires surgical treatment and radiotherapy. The prognosis of SNACC entirely depends on the histological subtype of the tumor and available treatment options. This case report is presented due to its rare histopathological findings.