| tropical measles | <infectious disease, virology> A disease of uncertain character, somewhat resembling rubella, occurring in southern China. (05 Mar 2000) |
|---|---|
| tropical medicine | <study> The branch of medicine concerned with diseases, mainly of parasitic origin, common in tropical and subtropical regions. (12 Dec 1998) |
| tropical myositis | A disease observed in Samoa and in tropical Africa, marked by pains in the extremities, fever of a remittent or intermittent type, and abscesses in the muscles in various parts of the body (may result in death from sepsis); causative organisms are Staphylococcus aureus and Streptococcus pyogenes, but usually the disease is associated with parasitic infections. Synonym: bungpagga, lambo lambo, tropical myositis, tropical pyomyositis. (05 Mar 2000) |
| tropical pyomyositis | A disease observed in Samoa and in tropical Africa, marked by pains in the extremities, fever of a remittent or intermittent type, and abscesses in the muscles in various parts of the body (may result in death from sepsis); causative organisms are Staphylococcus aureus and Streptococcus pyogenes, but usually the disease is associated with parasitic infections. Synonym: bungpagga, lambo lambo, tropical myositis, tropical pyomyositis. (05 Mar 2000) |
| tropical sore | Infection with promastigotes (leptomonads) of Leishmania tropica and of leishmaniasis major inoculated into the skin by the bite of an infected sandfly, Phlebotomus (commonly P. Papatasi); it is endemic in parts of Asia Minor, northern Africa, and India, and is known by innumerable names, each indicating its locality (e.g., Aleppo, Baghdad, Delhi, or Jericho boil; Aden ulcer; Biskra button); the ulcer begins as a papule that enlarges to a nodule and then breaks down into an ulcer. Two distinctive clinical and epidemiological diseases are recognised, the more common and widespread zoonotic rural disease with a moist acute form, caused by L. Major, with reservoir rodent hosts; and an urban, anthroponotic, dry, chronic form of leishmaniasis caused by leishmaniasis tropica, without a reservoir host, and now largely controlled. See: zoonotic cutaneous leishmaniasis, anthroponotic cutaneous leishmaniasis. Synonym: juccuya, Old World leishmaniasis, tropical sore. (05 Mar 2000) |
| tropical splenomegaly | A chronic disease, occurring in India, Assam, China, the area formerly known as the Mediterranean littoral areas, the Middle East, India, Pakistan, China, South and Central America, Asia, Africa caused by Leishmania donovani and transmitted by the bite of an appropriate species of sandfly of the genus Phlebotomus or Lutzomyia; the organisms grow and multiply in macrophages, eventually causing them to burst and liberate amastigote parasites which then invade other macrophages; proliferation of macrophages in the bone marrow causes crowding out of erythroid and myeloid elements, resulting in leukopenia, and anaemia, splenomegaly, and hepatomegaly which are characteristic, along with enlargement of lymph nodes; fever, fatigue, malaise, and secondary infections also occur; different strains of leishmaniasis donovani occur; leishmaniasis infantum in Eurasia, leishmaniasis chagasi in Latin America. Synonym: Assam fever, black sickness, Burdwan fever, cachectic fever, Dumdum fever, kala azar, tropical splenomegaly. (05 Mar 2000) |
| tropical splenomegaly syndrome | A syndrome characterised by persistent splenomegaly, exceptionally high serum IgM and malaria antibody levels, and hepatic sinusoidal lymphocytosis; believed to be a disturbance in the T-lymphocyte control of the humoral response to recurrent malaria. Synonym: tropical splenomegaly syndrome. (05 Mar 2000) |
| tropical typhus | See Typhus, scrub. (12 Dec 1998) |
| tropical ulcer | The lesion occurring in cutaneous leishmaniasis, tropical phagedenic ulceration caused by a variety of microorganisms, including mycobacteria; common in northern Nigeria. Synonym: tropical sore. (05 Mar 2000) |
| acne | <dermatology> An inflammatory disease of the pilosebaceous unit, the specific type usually being indicated by a modifying term, frequently used alone to designate common acne or acne vulgaris. Origin: possibly Gr. Akm = a point or achn = chaff (15 Nov 1997) |
| acne albida | Acne caused by milia. (05 Mar 2000) |
| acne artificialis | Acne produced by external irritants, such as tar (chloracne), or drugs internally administered, such as iodides or bromides. Synonym: acne venenata. (05 Mar 2000) |
| acne bacillus | A bacteria isolated from normal skin, intestinal contents, wounds, blood, pus, and soft tissue abscesses. It is a common contaminant of clinical specimens, presumably from the skin of patients or attendants. (12 Dec 1998) |
| acne cachecticorum | Acne occurring in persons who have a debilitating constitutional disease; characterised by large, soft, purulent, ulcerative, cystic, and scarred lesions. (05 Mar 2000) |
| acne ciliaris | Follicular papules and pustules on the free edges of the eyelids. (05 Mar 2000) |