abnormal minor salivary gland morphology abnormal Weber's gland morphology any structural anomaly of the lingual glands located on the lateral margins of the tongue, at the level of the foliate papillae and in the root of the tongue behind the circumvallate papillae; in humans, the ducts of posterior superficial lingual glands open into the crypts of lingual tonsils; mucous supplied by these glands may help to cleanse the crypts and aid in deglutition MP:0014177 abnormal posterior superficial lingual gland morphology