| PAS | para aminosalicylate; Parent Attitude Scale; patient administration system; patient appointments and... |
|---|---|
| PES | Patient Escort Service; photoelectron spectroscopy; physicians' equity services; polyethylene sulfon... |
| PLES | parallel-line equal space |
| RRS | retrorectal space; Richards-Rundle syndrome |
| RSTS | retropharyngeal soft tissue space |
| RLNL | regional lymph node lymphocytes |
|---|---|
| RLND | retroperitoneal lymph node dissection |
| gastroduodenal lymph nodes | Group of nodes surrounding the pylorus, draining lymph into the right gastric or the right gastro-omental lymph nodes; it is divided into three smaller groups: suprapyloric lymph nodes, above the pylorus; subpyloric lymph nodes, below the pylorus; and retropyloric lymph nodes, behind the pylorus. Synonym: nodi lymphatici pylorici, gastroduodenal lymph nodes. (05 Mar 2000) |
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| mandibular lymph node | One of the facial lymph nodes located by the facial artery near the point it crosses the mandible. Synonym: nodus mandibularis, mandibular nodes. (05 Mar 2000) |
| paramammary lymph nodes | Several lymph nodes on the lateral side of the mammary gland that receive afferents from the mammary gland and send efferents to the axillary pectoral group of lymph nodes. The paramammary lymph nodes are commonly considered as part of the pectoral group of axillary nodes. Synonym: nodi lymphatici paramammarii. (05 Mar 2000) |
| pararectal lymph nodes | Nodes located on either side of the rectum; they send efferents to the middle rectal and superior rectal nodes. Synonym: nodi lymphatici pararectales, nodi lymphatici anorectales, anorectal lymph nodes. (05 Mar 2000) |
| parasternal lymph nodes | A number of small nodes that lie along the course of the internal thoracic vessels; lymph enters these nodes from the anterior intercostal spaces, pericardium, diaphragm, liver and medial mammary gland; the efferent vessels pass upward to join the bronchomediastinal trunk of the same side. Synonym: nodi lymphatici parasternales. (05 Mar 2000) |
| paratracheal lymph node | Nodes along the sides of the trachea in the neck and in the posterior mediastinum; receive drainage of superior (and inferior) tracheobranchial (nodes, trachea and oesophagus); drain to bronchomediastinal lymphatic trunk(s), thoracic duct. Synonym: nodi lymphatici paratracheales, tracheal lymph nodes. (05 Mar 2000) |
| parauterine lymph nodes | Nodes on either side of the uterus draining lymph to the internal iliac nodes and to the lumbar nodes via lymphatic vessels following the ovarian arteries. Synonym: nodi lymphatici parauterini. (05 Mar 2000) |
| paravaginal lymph nodes | Lymph nodes in association with the vagina; they drain to the internal iliac nodes. Synonym: nodi lymphatici paravaginales. (05 Mar 2000) |
| paravesical lymph nodes | The lymph nodes located around the urinary bladder and, in the male, the prostate; there are three groups: prevesicular lymph nodes, in front of the bladder; lateral vesical lymph nodes, on the right and left sides; postvesicular lymph nodes behind the bladder. (05 Mar 2000) |
| marrow-lymph gland | A type of haemal node, resembling the bone marrow in structure and probable function. (05 Mar 2000) |
| parietal lymph nodes | The lymph nodes draining the walls of the abdomen or of the pelvis. Synonym: nodi lymphatici parietales, parietal nodes. (05 Mar 2000) |
| giant lymph node hyperplasia | Large benign, hyperplastic lymph nodes. The more common hyaline vascular subtype is characterised by small hyaline vascular follicles and interfollicular capillary proliferations. Plasma cells are often present and represent another subtype with the plasma cells containing IgM and IgA. (12 Dec 1998) |
| mastoid lymph nodes | Two or three nodes in the region of the mastoid process; they receive afferent lymphatic vessels from the scalp and auricle and send efferent vessels to the superior deep cervical nodes. Synonym: nodi lymphatici mastoidei, mastoid lymph nodes. (05 Mar 2000) |
| visceral lymph nodes | The lymph nodes draining the viscera of the abdomen or of the pelvis. Synonym: nodi viscerales, visceral nodes. (05 Mar 2000) |
| medial lacunar lymph node | A lymph node of the external iliac group located medial to the external iliac vein at the vascular lacuna. Synonym: nodus lacunaris medialis, medial lacunar node. (05 Mar 2000) |