salivary calculus
Học thuậtThân thiện
Definition
Noun: A hard, stone-like concretion that forms within a salivary gland or its duct, composed primarily of mineralized deposits.
Usage
This is a medical term. It refers specifically to a pathological condition affecting the salivary system. * The patient's pain and swelling were caused by a salivary calculus blocking the submandibular duct. * Diagnosis of a salivary calculus is often confirmed using medical imaging like an X-ray or ultrasound.
Advanced Usage
- Clinical Context: The term is used almost exclusively in medical diagnosis, pathology reports, and academic literature. In general conversation, the condition is more commonly referred to as a salivary gland stone.
- Pathophysiology: A salivary calculus forms from the crystallization of calcium and phosphate salts present in saliva, often around a microscopic nidus of cellular debris or bacteria.
Variants and Related Words
- Sialolith: (noun) The direct synonym and more precise technical term for a salivary calculus.
- Sialolithiasis: (noun) The medical condition characterized by the formation or presence of one or more salivary calculi.
Synonyms
- Sialolith
- Salivary gland stone
- Salivary duct stone
Antonyms
- There is no direct antonym, as it is a specific pathological object. The opposite state would be a patent (open, unobstructed) or healthy salivary duct.
Related Phrases
- "To obstruct a duct": A salivary calculus can obstruct a salivary duct, preventing the flow of saliva.
- "To lodge in the duct": The calculus often lodges in the duct, causing a backup of saliva and subsequent swelling.
Noun
- a stone formed in the salivary gland