What is the most common malignancy of the minor salivary glands that is known for its tendency to exhibit perineural invasion?

Adenoid cystic carcinoma is the most common malignancy of the minor salivary glands and is characterized by its propensity for perineural spread, which can lead to facial pain or paralysis. Key diagnostic features include a cribriform or 'Swiss cheese' pattern on histology. Clinically, it often presents as a slow-growing mass, and imaging may reveal perineural thickening. It is important to differentiate it from pleomorphic adenoma, a benign entity, to avoid mismanagement.