| American Type Culture Collection | <cell culture> A key resource for cultured cells, located in Rockville, USA. (12 Dec 1998) |
|---|---|
| pan american health organization | <organisation> WHO regional office for the americas acting as a coordinating agency for the improvement of health conditions in the hemisphere. The four main functions are: control or eradication of communicable diseases, strengthening of national and local health services, education and training, and research. (21 Jun 2000) |
| haemorrhagic fever, american | Diseases caused by american haemorrhagic fever viruses (tacaribe complex viruses). (12 Dec 1998) |
| south american blastomycosis | A chronic fungal infection caused by Paracoccidioides brasiliensis, characterised by primary pulmonary lesions with dissemination to many visceral organs. Common findings include ulcerative granuloma lesions to the buccal mucosa (inner lining of the cheek) and nasal mucosa that extend to the surrounding skin. Generalised lymphangitis is also typical. More commonly seen in South America and the tropics. (27 Sep 1997) |
| South American trypanosomiasis | Trypanosomiasis caused by Trypanosoma (or Schizotrypanum) cruzi and transmitted by certain species of reduviid (triatomine) bugs. In its acute form, it is seen most frequently in young children, with swelling of the skin at the site of entry, most often the face, and regional lymph node enlargement; in its chronic form it can assume several aspects, commonly cardiomyopathy, but megacolon and megaesophagus also occur; natural reservoirs include dogs, armadillos, rodents, and other domestic, domiciliated, and wild mammals. Synonym: Chagas' disease, Chagas-Cruz disease, Cruz trypanosomiasis. (05 Mar 2000) |
| North American blastomycosis | A fungal infection caused by Blastomyces dermatitidis. This rare fungal infection may produce inflammatory lesion of the skin or lungs or present as a disseminated disease to the skin, lungs, bones, liver, spleen and central nervous system. Uncommon unless patient is immunocompromised (AIDS). (27 Sep 1997) |
| indians, central american | An ethnic group belonging to the mongoloid racial stock in central america. This does not include mexican indians. (12 Dec 1998) |
| indians, north american | An ethnic group belonging to the mongoloid racial stock in north america. (12 Dec 1998) |
| indians, south american | An ethnic group belonging to the mongoloid racial stock in south america. (12 Dec 1998) |
| oil of American wormseed | Volatile oil from the fresh above ground part of the flower, American wormseed, Chenopodium ambrosioides, or C. Anthelminticum. Used as an anthelmintic. Synonym: oil of American wormseed. (05 Mar 2000) |
| French-American-British classification | <haematology> The classification of acute myeloid leukaemia on the basis of bone marrow and peripheral blood features. M0: Acute myeloid leukaemia with minimal evidence of myeloid differentiation. M1: Acute myeloblastic leukaemia. M2: Acute myeloblastic leukaemia with differentiation. M3: Acute promyelocytic leukaemia. M4: Acute myelomonocytic leukaemia. M5: Acute monocytic leukaemia. M6: Acute erythroleukaemia. M7: Acute megakaryocytic leukaemia. Acronym: FAB (07 Apr 1998) |
| Aaron's sign | <clinical sign> In acute appendicitis, a referred pain or feeling of distress in the epigastrium or precordial region on continuous firm pressure over McBurney's point. (05 Mar 2000) |
| Abadie's sign of tabes dorsalis | Insensibility to pressure over the tendo achillis. (05 Mar 2000) |
| Abrahams' sign | <clinical sign> An obsolete sign: Rales and other adventitious sounds, changes in the respiratory murmurs, and increase in the whispered sound can be heard on auscultation over the acromial end of the clavicle some time before they become audible at the apex; heard primarily in pulmonary tuberculosis affecting the apical portion of the lung, a dull-flat note, i.e., one between the normal dullness at the right apex and absolute flatness, heard on percussion in that region, indicating progress from incipient to advanced tuberculosis. (05 Mar 2000) |
| accessory sign | <clinical sign> A finding frequently but not consistently present in a disease. Synonym: assident sign. (05 Mar 2000) |