<unk> s are the second most common cause of chronic obstructive sialadenitis, after salivary stones. In line with this,<unk> s may give rise to the "meal time syndrome", where there is pain and swelling of the involved salivary gland upon salivary stimulation with the sight, smell and taste of food. In other cases, there is irregular and intermittent pain and swelling of the gland which is not related to meal times. Typically the swelling is present upon waking or occurs before the first meal of the day. After several hours, the swelling goes down suddenly with a rush of foul tasting saliva.<unk> s are more common in the parotid<unk>  system compared to the submandibular<unk>  system.
Salivary duct stricture
Salivary gland atresia
Salivary gland fistula
Salivary gland hypoplasia
Ectopic salivary gland tissue
Salivary gland tumour
Salivary gland aplasia
Retropharyngeal abscess