Cachexia refers to rapid wasting of muscles and tissues which cannot be explained by under-nutrition alone. It is a common complication of cancer and AIDS.
Cutaneous T-cell lymphoma, a type of non-Hodgkin's lymphoma, is a cancer of the lymphatic system which affects only the T-cells (immune cells) of the skin.
Premenstrual dysphoric disorder is a form of PMS that causes severe emotional and physical problems in the two weeks before a woman's menstrual period.