| Ao | orifice area |
|---|---|
| AOC | abridged ocular chart; amyloxycarbonyl; anodal opening contraction; area of concern |
| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
| APA | action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; America... |
| ARAO | angiographic area of right anterior oblique projection |
| pagetoid cells | Atypical melanocytes resembling Paget's cells, found in some cutaneous melanomas of the superficial spreading type. (05 Mar 2000) |
|---|---|
| Paget's cells | Relatively large, neoplastic epithelial cell's (carcinoma cell's) with hyperchromatic nuclei and palely staining cytoplasm; in Paget's disease of the breast, such cell's occur in neoplastic epithelium in the ducts and in the epidermis of the nipple, areola, and adjacent skin. (05 Mar 2000) |
| ganglion cells of dorsal spinal root | Pseudounipolar nerve cell bodies in the ganglia of the dorsal spinal nerve roots; the sensory spinal nerves are composed of the peripheral axon branches of these sensory ganglion cell's, whereas the central axon branch of each such cell enters the spinal cord as a component of the dorsal root. (05 Mar 2000) |
| ganglion cells of retina | The nerve cell's of the retina whose central processes (fibres) form the optic nerve; their peripheral processes synapse with the bipolar cell's and through them with the rod and cone cell's; these cell bodies are round or flask-shaped and vary considerably in size. (05 Mar 2000) |
| paneth cells | Epithelial cells found in the basal part of the intestinal glands (crypts of lieberkuhn). Paneth cells synthesise and secrete lysozyme and cryptidins. (12 Dec 1998) |
| Paneth's granular cells | Cell's, located at the base of intestinal glands of the small intestine, which contain large acidophilic refractile granules and may produce lysozyme. Synonym: Davidoff's cells. (05 Mar 2000) |
| veiled cells | An antigen-presenting cell that has veil-like cytoplasmic processes and circulates in the blood and lymph. Synonym: veiled cells. (05 Mar 2000) |
| Gaucher cells | Large, finely and uniformly vacuolated cell's derived from the reticuloendothelial system, and found especially in the spleen, lymph nodes, liver, and bone marrow of patients with Gaucher's disease; Gaucher cell's contain kerasin (a cerebroside), which accumulates as a result of a genetically determined absence of the enzyme glucosylceramidase. (05 Mar 2000) |
| parafollicular cells | Cell's present between follicles or interspersed among follicular cell's; they are rich in mitochondria and are believed to be the source of thyrocalcitonin. Synonym: C cell, light cells of thyroid. (05 Mar 2000) |
| paraganglionic cells | Cell's of the embryonic sympathetic nervous system that become chromaffin cell's. (05 Mar 2000) |
| vero cells | A cell line derived from the kidney of the african green (vervet) monkey, cercopithecus aethiops; used primarily in virus replication studies and plaque assays. (12 Dec 1998) |
| germ cells | The reproductive cells in multicellular organisms. (12 Dec 1998) |
| parietal cells, gastric | Cells of the gastric glands which secrete hydrochloric acid and intrinsic factor. (12 Dec 1998) |
| giant cells, foreign-body | Multinucleated cells (fused macrophages), characteristic of granulomatous inflammation, which form around exogenous material in the skin. They are similar in appearance to langhans giant cells (giant cells, langhans), but foreign-body giant cells have more abundant chromatin and their nuclei are scattered in an irregular pattern in the cytoplasm. (12 Dec 1998) |
| giant cells, langhans | Multinucleated cells (fused macrophages) seen in granulomatous inflammations such as tuberculosis, syphilis, sarcoidosis, and deep fungal infections. They resemble foreign-body giant cells (giant cells, foreign body) but langhans giant cells contain less chromatin and their nuclei are arranged peripherally in a horseshoe-shaped pattern. Langhans giant cells occur frequently in delayed hypersensitivity. (12 Dec 1998) |