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Overview Traumatic Brain Injury (TBI) is an alteration in brain function, or other evidence of brain pathology, caused by an external force. It occurs when an external force impacts the brain, and often is caused by a blow, bump, jolt or penetrating wound to the head. However, not all blows …

What is Tumor lysis syndrome? Tumor lysis syndrome (TLS) is characterized by rapid and massive destruction of tumor cells, which is caused by tumour cell death resulting in a sudden release into the blood stream of intracellular products (nucleic acids, potassium and phosphate). This can result in clinical toxicities including …

Overview Tendinopathy is the broad term for any tendon condition that causes pain and swelling. Your tendons are rope-like tissues in your body that attach muscle to bone. When your muscles tighten and relax, your tendons and bones move. One example of a tendon is your Achilles tendon, which attaches your calf muscle to …

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 …