T

What is toxic stress? Toxic stress refers to prolonged, traumatic life events that occur for an extended period of time in the child’s life without the protection of an adult. Examples can include abuse (physical, sexual, emotional), neglect (physical, emotional) and household dysfunction (parental mental illness, domestic violence, parental incarceration). …

Definition Trichotillomania (TTM), or hair pulling disorder, is a repetitive behaviour that involves an irresistible urge to repeatedly pull out one’s own hair. Trichotillomania belongs to a group of disorders known as body-focused repetitive disorders, in which individuals compulsively damage their physical appearance. Individuals with trichotillomania may pull out hair …

Definition Tetralogy of Fallot is a combination of four heart defects that can result in a baby turning blue or cyanotic because of a lack of oxygen in the blood. It usually is diagnosed in infancy. The heart consists of four chambers: the two upper chambers, called atria, where blood …

Definition Telogen effluvium (TE) was first termed by Kligman to define an increased shedding of normal club hairs based on the hypothesis that, irrespective of the cause, the follicle tends to act in a similar manner undergoing a premature termination of anagen and precipitating telogen. Telogen effluvium is a noninflammatory …

Definition Twin to twin transfusion syndrome (TTTS) is a serious condition that occurs in approximately 10 to 15 percent of pregnancies with identical twins that share one placenta, also called a monochorionic-diamniotic twin pregnancy. Blood vessel connections within the placenta allow the fetuses to share blood supply and can cause …

Definition Tinnitus is a condition where the person has the perception of a constant ringing sensation within the ears without the presence of any actual external factors. The continuous discomfort in the ears can be in any form like buzzing, hissing, clicking etc. The feeling can either be temporary or …

Understanding Takayasu’s arteritis Takayasu’s arteritis is an uncommon form of vasculitis. Inflammation damages large and medium-sized blood vessels. The vessels most commonly affected are the branches of the aorta (the main blood vessel that leaves the heart), including the blood vessels that supply blood to the arms and travel through …

What is telangiectasia? Telangiectasia (commonly known as “spider veins”) are dilated or broken blood vessels located near the surface of the skin or mucous membranes. They often appear as fine pink or red lines, which temporarily whiten when pressed. “Matted” telangiectasias are clusters of these small dilated blood vessels that …