Cashew allergy: An allergic reaction to cashew nuts. Cashew allergy can be isolated, meaning that the individual is only allergic to cashews and not to other nuts, or the allergy may extend to other kinds of tree nuts such as walnuts and pistachios. Isolated cashew allergy can strike children or adults. No prior exposure to cashews is required for an allergic reaction to cashews.
In children the average age of their first allergic reaction to cashews is 2 years. One in every 5 children has previously eaten cashew nuts but, conversely, 4 out every 5 children have no known prior exposure to cashews.
The nature of the reaction to cashews is variable — about 50% have skin symptoms like hives, 25% have respiratory signs such as difficulty breathing and 17% have an intestinal reaction to the cashews. The reaction can range from mild to life-threatening.
Almost one-third of children are also allergic to pistachios, which belong to the same botanical family of tree nuts as cashews.
Cassette: A pre-existing structure into which an insert can be moved. In molecular biology, a gene conversion process in which the old gene is replaced with a copy of a silent gene and the new copy becomes active. As the process involves replacing one ready made construct with another in an active slot, it is […]
Cast: 1) A protective shell of fiberglass, plastic, or plaster, and bandage that is molded to protect broken or fractured limb(s) as it heals. 2) An abnormal mass of dead cells that forms in a body cavity. For example, cases of cells that form in the tubules of the kidneys are sometimes detected in urine […]
- Casting, serial
Casting, serial: The use of successive casts to reshape deformed or spastic limbs or contracted joints.
- Castleman disease
Castleman disease: A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes (“swollen glands”), most commonly affecting the nodes between the lungs (in the mediastinum). There are two quite different forms of Castleman’s disease. One form, found in 90% cases, is a localized kind of lymphadenopathy. It usually causes no symptoms, follows […]
Castration: Removal or destruction of the sex glands. The term is usually used in reference to the testicles, but it also can apply to the ovaries.