| lymph node excision | Surgical excision of one or more lymph nodes. Its most common use is in cancer surgery. (12 Dec 1998) |
|---|---|
| lymph node of azygos arch | A lymph node of the posterior mediastinal group located adjacent to the arch of the azygos vein. Synonym: nodus lymphaticus arcus venae azygos. (05 Mar 2000) |
| lymph node of ligamentum arteriosum | A lymph node of the anterior mediastinal group located adjacent to the ligamentum arteriosum. Synonym: nodus ligamenti arteriosi, lymph node of ligamentum arteriosum. (05 Mar 2000) |
| lymph node permeability factor | A substance, released by lymphocytes when stimulated or damaged, that increases capillary permeability and the accumulation of mononuclear cells. (05 Mar 2000) |
| lacunar | Relating to a lacuna. (05 Mar 2000) |
| lacunar abscess | An abscess involving the urethral lacunae. (05 Mar 2000) |
| lacunar amnesia | Amnesia in reference to isolated events. (05 Mar 2000) |
| lacunar ligament | <anatomy> A curved fibrous band that passes horizontally backward from the medial end of the inguinal ligament to the pectineal line; it forms the medial boundary of the femoral ring. See: aponeurosis of external abdominal oblique muscle. Synonym: ligamentum lacunare, Gimbernat's ligament. (05 Mar 2000) |
| lacunar skull | <radiology> Also known as: craniolacunia, mesenchymal dysplasia, may appear normal after several yrs associated with: Chiari malformation (almost always !), myelomeningocele, encephalocele in contrast, increased intracranial pressure has: beaten-silver appearance, closed sutures, with or without abnormal skull size (Lueckenschaedel) (12 Dec 1998) |
| lacunar state | The presence of lacunes in the brain. One of the major factors underlying cerebrovascular disease; high correlation with hypertension and atherosclerosis. Symptomatic forms include pure motor hemiplegia and pure hemisensory syndrome; multiple lacunar infarcts are the most common cause of pseudobulbar palsy. (05 Mar 2000) |
| lacunar tonsillitis | Inflammation of the mucous membrane lining the tonsillar crypts. (05 Mar 2000) |
| lateral deep cervical lymph nodes | The lymph nodes located in the posterior triangle of the neck beneath the deep cervical fascia; they empty into the jugular trunk on the right or left side; the group is subdivided into four smaller chains: anterior jugular lymph nodes, lateral jugular lymph nodes, accessory nerve lymph nodes, and supraclavicular lymph nodes. Synonym: nodi lymphatici cervicales laterales profundi. (05 Mar 2000) |
| lateral group of axillary lymph nodes | Lymph nodes along the brachial vein that receive lymph drainage from most of the free superior limb and send efferent vessels to the central group of axillary lymph nodes. Synonym: nodi lymphatici brachiales, brachial lymph nodes. (05 Mar 2000) |
| lateral jugular lymph nodes | Nodes of the lateral deep cervical group lying lateral to the internal jugular vein; they usually empty into the jugular trunk. Synonym: nodi lymphatici jugulares laterales. (05 Mar 2000) |
| lateral pericardiac lymph nodes | Small lymph nodes located along the pericardiacophrenic vessels, they drain the pericardium. Synonym: nodi lymphatici pericardiales laterales. (05 Mar 2000) |