Definition of concrete on in Al Khurana
Reading File
Finding Sources
Finding Sources
Reading File
Finding Sources
"Al Khurana" does not appear in the medical library catalog. The query appears to refer to Khurana's textbook - likely Textbook of Physiology by A.K. Jain (Indu Khurana), a popular Indian physiology text. That specific book is not in the library. However, I can provide the definition of concretion from the available authoritative sources.
Definition of Concretion
A concretion is an abnormal, concrete-like precipitate (solid deposit) of mineral salts that forms within the body. The term calculus is used interchangeably to describe such a concretion.
From Basic Medical Biochemistry - A Clinical Approach, 6e:
"The term calculus is used to describe any abnormal concretion (concrete-like precipitate) of mineral salts. These almost always form within the cavity of a hollow organ, such as the kidney (kidney or renal stones) or the lumen of a duct (e.g., common bile duct stones)."
- Basic Medical Biochemistry, p. 148
Key Points about Concretions:
| Feature | Detail |
|---|---|
| Composition | Mineral salts (e.g., calcium, oxalate, urate, phosphate) |
| Location | Hollow organs (kidney, bladder) or ducts (bile duct, salivary duct) |
| Alternate name | Calculus (pl. calculi), stone |
| Examples | Renal stones, gallstones, prostatic concretions (corpora amylacea), conjunctival concretions |
Other Contexts Where Concretions Appear:
- Prostate gland: Rounded pink concretions called corpora amylacea are characteristic of benign prostatic hyperplasia - Robbins & Kumar Basic Pathology
- Conjunctiva (ophthalmology): Small calcium deposits beneath the palpebral conjunctiva, sometimes eroding through the surface - Kanski's Clinical Ophthalmology
- Umbilicus: Black concretions from accumulated desquamated epithelium and dirt in those with poor hygiene - S Das Manual of Clinical Surgery
- Pharmacology/Toxicology: Some drugs (e.g., salicylates, carbamazepine) can form concretions in the GI tract, complicating overdose management - Rosen's Emergency Medicine
Note: "Al Khurana" does not appear as a title in the medical textbook library available here. If you are referring to a specific book such as Khurana's Textbook of Physiology or another text by that name, the exact passage from that specific book cannot be retrieved - but the definition above reflects the standard medical definition consistent across major textbooks.
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