Sialolithiasis
Pronunciation: sy-al-oh-lih-THY-ah-sis
The formation of calcified stones (sialoliths) within a salivary gland or its ductal system, most commonly affecting the submandibular gland.
Full Definition
Sialolithiasis refers to the presence of calculi within the salivary gland ductal system, resulting from mineralisation of organic material around a nidus. The submandibular gland and its Wharton's duct are affected in the majority of cases due to the tortuous uphill path of secretion and the mucous nature of submandibular saliva. Clinical presentation typically includes pain and swelling of the affected gland, particularly at mealtimes when salivary flow is stimulated. Editors working on oral medicine documents should note that 'sialolith' refers to the individual stone, whereas 'sialolithiasis' denotes the condition or disease state. The term must not be confused with sialadenitis, which is inflammation of the gland itself, often but not always secondary to obstruction.
Usage
Usage note: Distinguish 'sialolith' (the stone) from 'sialolithiasis' (the condition). Do not conflate with 'sialadenitis', which describes glandular inflammation rather than stone formation.
In Context
- "Ultrasound imaging revealed a 6 mm sialolith within Wharton's duct, confirming a diagnosis of sialolithiasis." — Radiology referral letter
- "Recurrent unilateral submandibular swelling at mealtimes is a hallmark presentation of sialolithiasis." — Undergraduate oral medicine textbook