| anaplasma | A genus of gram-negative bacteria whose organisms are obligate parasites of vertebrates. Species are transmitted by arthropod vectors with the host range limited to ruminants. Anaplasma marginale is the most pathogenic species and is the causative agent of severe bovine anaplasmosis. (12 Dec 1998) |
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| Anaplasma centrale | A species that causes benign anaplasmosis of cattle. (05 Mar 2000) |
| Anaplasma marginale | A species that causes clinical anaplasmosis of cattle; it is the type species of the genus Anaplasma. (05 Mar 2000) |
| Anaplasma ovis | A species that causes anaplasmosis in sheep and goats; cattle are refractory. (05 Mar 2000) |
| anaplasmataceae | A family of bacteria which inhabit red blood cells and cause several animal diseases. (12 Dec 1998) |
| anaplasmataceae infections | Infections with bacteria of the family anaplasmataceae. (12 Dec 1998) |
| anaplasmosis | A disease of cattle caused by parasitization of the red blood cells by bacteria of the genus anaplasma. (12 Dec 1998) |
| anaplastic | <oncology, pathology> Relating to anaplasia or anaplasty. Origin: Gr. Plassein = to form (09 Oct 1997) |
| anaplastic astrocytoma | <tumour> Intermediate grade astrocytoma characterised by increased cellularity, nuclear pleomorphism, mitoses, and variable vascular endothelial proliferation. (05 Mar 2000) |
| anaplastic carcinoma | <tumour> Carcinoma with absence of epithelial structural differentiation. (05 Mar 2000) |
| anaplastic carcinoma of the thyroid | <oncology, tumour> An aggressive form and rare form of thyroid cancer that is one of the most rapidly growing and invasive types of thyroid cancer. It commonly occurs in people over 60 years of age and may cause obstruction of the trachea. The cause is unknown but exposure to radiation may be a factor. Thyroid function tests are usually normal. Hoarse voice, cough and coughing up blood are common symptoms. Examination may reveal nodules in the thyroid gland. Diagnosis is made via biopsy. Treatment is surgical with or without radiation therapy. (27 Sep 1997) |
| anaplastic cell | A cell that has reverted to an embryonal state, an undifferentiated cell, characteristic of malignant neoplasms. (05 Mar 2000) |
| anaplastic large cell lymphoma | <tumour> A form of lymphoma characterised by anaplasia of cells, sinusoidal growth, and immunoreactivity with CD30 (Ki-1 or Ber-H2). Synonym: Ki-1+ lymphoma. (05 Mar 2000) |
| anaplasty | <procedure, surgery> The surgical repair or replacement of damaged organs, tissue, or bodyparts. (09 Oct 1997) |
| anaplerosis | 1. <surgery> The surgical replacement of damaged or defective body parts. 2. <biochemistry> An intermediate enzyme reaction that replaces the concentration of vital reacting compound that has been depleted in an organism. (09 Oct 1997) |