| PCD | pacer-cardioverter-defibrillator; papillary collecting duct; paraneoplastic cerebellar degeneration;... |
|---|---|
| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
| PN | papillary necrosis; parenteral nutrition; penicillin; perceived noise; percussion note; periarteriti... |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |
| PPM | permanent pacemaker; phosphopentomutase; physician practice management; pigmented pupillary membrane... |
| cystic mole | <gynaecology, oncology, tumour> A relatively rare mass or tumour that can form within the uterus at the beginning of a pregnancy. The cause of hydatidiform mole is unknown. Symptoms include vaginal bleeding, uterine growth, nausea and vomiting. Some hydatidiform moles may become malignant (cancerous) where they are referred to as a choriocarcinoma. Incidence: 1 in 1,500 births. (02 Jan 1998) |
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| cystic node | A lymph node at the neck of the gallbladder draining lymph into the hepatic nodes. Synonym: nodus cysticus, cystic node. (05 Mar 2000) |
| cystic papillomatous craniopharyngioma | <tumour> A form of craniopharyngioma characterised by large cysts within which are fungating, irregular outgrowths of stratified squamous epithelium. (05 Mar 2000) |
| cystic pelvic mass | <radiology> Physiologic ovarian cyst, The Big Three (ectopic, PID, endometriosis), ovarian neoplasm, nongynecologic mass (12 Dec 1998) |
| cystic polyp | A pedunculated cyst. Synonym: hydatid polyp. (05 Mar 2000) |
| cystic sellar mass | <radiology> Arachnoid cyst, cystic craniopharyngioma, dermoid / epidermoid (12 Dec 1998) |
| cystic vein | <anatomy, vein> Veins, usually anterior and posterior, which drain the neck of the gallbladder and cystic duct, along which they pass to enter the right branch of the portal vein; they communicate extensively with surrounding veins of the stomach, duodenum and pancreas. Synonym: vena cystica. (05 Mar 2000) |
| spiral fold of cystic duct | A series of crescentic folds of mucous membrane in the upper part of the cystic duct, arranged in a somewhat spiral manner. Synonym: plica spiralis ductus cystici, Amussat's valve, Heister's valve, spiral valve of cystic duct, valvula spiralis. (05 Mar 2000) |
| spiral valve of cystic duct | A series of crescentic folds of mucous membrane in the upper part of the cystic duct, arranged in a somewhat spiral manner. Synonym: plica spiralis ductus cystici, Amussat's valve, Heister's valve, spiral valve of cystic duct, valvula spiralis. (05 Mar 2000) |
| neoplasms, cystic, mucinous, and serous | Neoplasms containing cyst-like formations or producing mucin or serum. (12 Dec 1998) |
| ovarian cystic disease | <gynaecology> A painful condition associated with the recurrent formation of large ovarian cysts. Distention of the ovarian capsule causes pain and rupture of a larger cyst can, in rare instances, cause internal bleeding. Treatment often includes hormone manipulation (birth control pills). (05 Jan 1998) |
| kidney, cystic | A kidney containing one or more cysts, including polycystic disease (kidney, polycystic), solitary cyst, multiple simple cysts, and retention cysts (associated with parenchymal scarring). (12 Dec 1998) |
| Luschka's cystic glands | Small, mucous, tubuloalveolar glands in the mucosa of the larger bile ducts and especially in the neck of the gallbladder. Synonym: glandulae mucosae biliosae, Luschka's cystic glands, Theile's glands. (05 Mar 2000) |
| lymphangioma, cystic | A lymphangioma, often very large, usually occurring in the neck area, and composed of large, multilocular thin-walled cysts. It is also called hygroma or cystic hygroma. (12 Dec 1998) |
| acidophil adenoma | <endocrinology, oncology, tumour> A benign tumour, usually found in the anterior lobe of the pituitary gland, whose cells stain with acid dyes. Such pituitary tumours may give rise to excessive secretion of growth hormone, resulting in gigantism or acromegaly. A specific type of acidophil adenoma may give rise to nonpuerperal galactorrhoea. (25 Jun 1999) |