| malarial | Pertaining to or affected with malaria. (05 Mar 2000) |
|---|---|
| malarial cachexia | Malaria that develops after frequently repeated attacks of one of the acute forms, usually falciparum malaria; it is characterised by profound anaemia, enlargement of the spleen, emaciation, mental depression, sallow complexion, oedema of ankles, feeble digestion, and muscular weakness. Synonym: limnaemia, malarial cachexia. (05 Mar 2000) |
| malarial crescent | The male or female gametocyte(s) of Plasmodium falciparum, whose presence in human red blood cells is diagnostic of falciparum malaria. Synonym: crescent, sickle form. Myopic crescent, a white or grayish white crescentic area in the fundus of the eye located on the temporal side of the optic disk; caused by atrophy of the choroid, permitting the sclera to become visible. Synonym: myopic conus. Sublingual crescent, the crescent-shaped area on the floor of the mouth formed by the lingual wall of the mandible and the adjacent part of the floor of the mouth. (05 Mar 2000) |
| malarial haemoglobinuria | A condition, now uncommon, resulting from Plasmodium falciparum infection (malignant tertian malaria with severe haemolysis); frequently seen in Caucasians after interrupted treatment with quinine. Synonym: blackwater fever, haemoglobinuric fever, West African fever. (05 Mar 2000) |
| malarial knobs | Rounded protrusions of a red blood cell infected with Plasmodium falciparum, responsible for the adhesion of infected red cells to one another and to the endothelium of the blood vessels containing these infected cells; results in capillary blockage responsible for much of the pathology of malignant tertian malaria. (05 Mar 2000) |
| malarial periodicity | A clinical rhythmicity reflected in periodic fevers and chills recurring at approximately 48-hour intervals in tertian malaria (Plasmodium vivax or P. Ovale) or at 72-hour intervals in quartan malaria (Periodicity malariae); the rhythm of tertian or 48-hour cycles is frequently modified in malignant tertian or falciparum malaria (P. Falciparum); associated with release of merozoites from red cells during erythrocytic schizogony, although the controlling mechanism for the synchronous release is unknown. (05 Mar 2000) |
| malarial pigment | A dark brown, granular pigment which rotates the plane of polarised light and has other properties similar to formalin pigment; occurs in parasites, such as Plasmodium malariae, around brain capillaries, and in fixed macrophages of spleen, liver, bone marrow, and lymph nodes. See: malarial pigment stain. (05 Mar 2000) |
| malarial pigment stain | <technique> A stain using phloxine-toluidine blue O sequence; malarial pigment and nuclei are bluish, erythrocytes and cytoplasm are red to orange; found in phagocytic cells of the reticuloendothelial system. (05 Mar 2000) |
| malignant tertian malarial parasite | A species of protozoa that is the causal agent of falciparum malaria (malaria, falciparum). It is most prevalent in the tropics and subtropics. (12 Dec 1998) |
| intermittent malarial fever | See: intermittent malaria. (05 Mar 2000) |
| actinic granuloma | An annular eruption on sun-exposed skin which microscopically shows phagocytosis of dermal elastic fibres by giant cells and histiocytes. Synonym: Miescher's granuloma. (05 Mar 2000) |
| amoebic granuloma | A nodular, tumour-like focus of proliferative inflammation sometimes developing in chronic amoebiasis, especially in the wall of the colon. Synonym: amoebic granuloma. Origin: amoeba + G. -oma, tumour (05 Mar 2000) |
| apical granuloma | Chronic nonsuppurative inflammation of periapical tissue resulting from irritation following pulp disease or endodontic treatment. (12 Dec 1998) |
| beryllium granuloma | A sarcoid-like granulomatous reaction to exposure to inhaled beryllium, or skin cuts by fluorescent lamps. (05 Mar 2000) |
| bilharzial granuloma | A granulomatous lesion formed around schistosome eggs embedded in tissues in cases of schistosomiasis (bilharziasis); typically these granulomata are found in intestinal tissues (Schistosoma japonicum or S. Mansoni infection), bladder tissue (S. Haematobium), and hepatic tissue (all human schistosomes). Synonym: bilharzial granuloma. (05 Mar 2000) |