What are the common pathologies associated with the parotid gland in the head and neck compartment, and how can they be differentiated radiologically?

Salivary gland tumors, such as pleomorphic adenomas and Warthin tumors, often present as well-circumscribed masses on imaging. Metastatic adenopathy may show irregular borders and central necrosis. Lymphoma typically appears as a homogenous mass without necrosis. Parotid cysts are fluid-filled and well-defined. Key diagnostic features include the lesion's margin, enhancement pattern, and presence of calcifications. Clinical pearls: Pleomorphic adenomas can undergo malignant transformation. Common pitfalls include mistaking benign lymphoepithelial cysts for malignant lesions.