| waldenses | A sect of dissenters from the ecclesiastical system of the Roman Catholic Church, who in the 13th century were driven by persecution to the valleys of Piedmont, where the sect survives. They profess substantially Protestant principles. Origin: So called from Petrus Waldus, or Peter Waldo, a merchant of Lyons, who founded this sect about a. D. 1170. Source: Websters Dictionary (01 Mar 1998) |
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| Waldenstrom | Jan G., Swedish physician, *1906. See: Waldenstrom's macroglobulinaemia, Waldenstrom's purpura, Waldenstrom's syndrome, Waldenstrom's test. (05 Mar 2000) |
| waldenstrom macroglobulinaemia | <radiology> Can cause infiltration of small bowel, associated with primary CNS lymphoma (12 Dec 1998) |
| Waldenstrom's macroglobulinaemia | <haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen. Origin: Gr. Haima = blood (27 Sep 1997) |
| Waldenstrom's purpura | <haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen. (27 Sep 1997) |
| Waldenstrom's syndrome | <haematology> A condition characterised by proliferation of cells resembling lymphocytes or plasma cells in the bone marrow, anaemia, increased sedimentation rate and hyperglobulinaemia. Physical findings include mucosal bleeding, skin purpura and enlargement of the lymph nodes, liver and spleen. Origin: Gr. Haima = blood (27 Sep 1997) |
| Waldenstrom's test | A test for porphyrin in the urine; 2 ml of urine are mixed with an equal amount of 2% dimethyl-p-aminobenzaldehyde in 50/100 HCl. A red colour appears if urobilinogen (Ehrlich's benzaldehyde reaction) or porphobilinogen is present. (05 Mar 2000) |
| Waldeyer | (Waldeyer-Hartz) Heinrich G. Von, German anatomist and pathologist, 1836-1921. See: Waldeyer's fossae, Waldeyer's glands, Waldeyer's zonal layer, Waldeyer's throat ring, Waldeyer's sheath, Waldeyer's space, Waldeyer's tract. (05 Mar 2000) |
| Waldeyer's fossae | See: inferior duodenal recess, superior duodenal recess. (05 Mar 2000) |
| Waldeyer's glands | Coil gland's near the margins of the eyelids. (05 Mar 2000) |
| Waldeyer's sheath | The tubular space between the bladder wall and the intramural portion of the ureter as it courses obliquely through this structure; actually a space and not a true sheath. Synonym: Waldeyer's space. (05 Mar 2000) |
| Waldeyer's space | The tubular space between the bladder wall and the intramural portion of the ureter as it courses obliquely through this structure; actually a space and not a true sheath. Synonym: Waldeyer's space. (05 Mar 2000) |
| Waldeyer's throat ring | The broken ring of lymphoid tissue, formed of the lingual, faucial, and pharyngeal tonsils. Synonym: Bickel's ring, tonsillar ring, Waldeyer's throat ring. (05 Mar 2000) |
| Waldeyer's tract | A longitudinal bundle of thin, unmyelinated and poorly myelinated fibres capping the apex of the posterior horn of the spinal gray matter, composed of posterior root fibres and short association fibres that interconnect neighboring segments of the posterior horn. Synonym: fasciculus dorsolateralis, tractus dorsolateralis, dorsolateral tract, fasciculus marginalis, Lissauer's bundle, Lissauer's column, Lissauer's fasciculus, Lissauer's marginal zone, Lissauer's tract, marginal fasciculus, Spitzka's marginal tract, Spitzka's marginal zone, Waldeyer's tract, Waldeyer's zonal layer. (05 Mar 2000) |
| Waldeyer's zonal layer | A longitudinal bundle of thin, unmyelinated and poorly myelinated fibres capping the apex of the posterior horn of the spinal gray matter, composed of posterior root fibres and short association fibres that interconnect neighboring segments of the posterior horn. Synonym: fasciculus dorsolateralis, tractus dorsolateralis, dorsolateral tract, fasciculus marginalis, Lissauer's bundle, Lissauer's column, Lissauer's fasciculus, Lissauer's marginal zone, Lissauer's tract, marginal fasciculus, Spitzka's marginal tract, Spitzka's marginal zone, Waldeyer's tract, Waldeyer's zonal layer. (05 Mar 2000) |