Dictionary of Tropical Medicine

Kala azar

See visceral leishmaniasis.

Kaposi's sarcoma

A cancer or tumour of the blood and/or lymphatic vessel walls. It usually appears as blue-violet to brownish skin blotches or lumps. Before the appearance of AIDS, it was rare in the developed world. AIDS-associated Kaposi's sarcoma is much more aggressive than the earlier form of the disease and is associated with Human Herpes Virus 8.

Katayama Syndrome

A syndrome characterised by allergic symptoms and involving the respiratory tract (i.e. fever, cough, rash and marked eosinophilia) sometimes seen in patients who have had exposure to a large number of schistosome cercariae, especially Schistosoma japonicum, sometimes S. mansoni, rarely S. haematobium. Sydrome occurs during the invasive stage of schistosomiasis from the time of cercarial penetration of the skin to the time of early egg laying in the veins.

Keratitis

Inflammation of the cornea.

Keratoconjunctivitis

Inflammation of the cornea and the conjunctiva.

Kinetoplast

Small highly staining body at the base of the flagellum of flagellate protozoa.

Kingdom

The highest taxonomic level. See Taxonomy.

Kraits

Sea kraits (Genus Laticauda) are similar to, and can be regarded as sea snakes, although they are more heavily-built and their nostrils are not situated on the upper surface of the snout. Laticauda colubrina (the banded sea snake) and Laticauda laticaudata (the black-banded sea snake) are the most common in Australia.

Kwashiorkor

Severe protein deficiency disease seen in malnourished children.