Primary Malignant Melanoma of the Parotid Gland: A Rare Case Report

<p>Primary malignant melanoma of the parotid gland is an exceedingly rare and complex condition, presenting significant diagnostic difficulties. These challenges arise from the absence of melanin within the tumor, which typically characterizes melanoma, as well as its histological resemblance to other poorly differentiated tumors. As a result, distinguishing it from other neoplasms, such as poorly differentiated carcinomas, can be particularly challenging. A precise diagnosis often necessitates the use of advanced imaging modalities, such as MRI and PET scans, to assess the tumor's characteristics and possible spread. Furthermore, immunohistochemical methods are crucial for detecting melanoma-specific markers, such as S100 and HMB-45, which aid in confirming the diagnosis. Given its rarity and potential for metastasis, early detection and accurate diagnosis are critical to determining appropriate treatment strategies and improving patient outcomes. We report a case of a 64-year-old woman who consulted for a left lateral cervical swelling that had been evolving for 2 years, without facial palsy or other associated symptoms. A biopsy revealed a parotid melanoma.</p>