High-grade cystadenocarcinoma of the parotid gland: A rare case report

Abstract

Cystadenocarcinoma is a rare malignant tumor of the salivary glands. It has a favorable prognosis, and surgery is the primary therapeutic option. Diagnosis is based on pathologic findings, which indicate a mainly cystic growth pattern with intraluminal papillary proliferation. Currently, there are few studies reporting cystadenocarcinoma of the salivary gland in the literature. This case report presents a 75-year-old male patient with cystadenocarcinoma originating from the parotid gland with clinical, radiological, and pathological features. In this patient, radiological images suggested benign lesions, while fine-needle aspiration biopsy was reported as suspicious for malignant cytology and subtyping could not be performed. Total parotidectomy option could be used in salivary gland masses with suspected malignancy.