Category: T

  • Tonsillar herniation

    The protrusion of the cerebellar tonsils through the foramen magnum. It causes pressure on the medulla oblongata and may be fatal.  

  • True hermaphroditism

    Hermaphroditism in which the individual possesses both ovarian and testicular glands.  

  • Transverse hermaphroditism

    Hermaphroditism characterized by having the outward organs of one sex and the internal organs of the other.  

  • Toxic hepatitis

    Inflammation of the liver caused by the ingestion or absorption of toxins or drugs into the body. Included in the great number of agents known to be able to cause this type of hepatitis are common drugs and chemicals (e.g., halothane, isoniazid, anabolic steroids, carbon tetrachloride, trichlorethylene) used in either the treatment of disease or…

  • Typhoid hemorrhage

    Gastrointestinal (GI) bleeding due to ulceration of the upper GI tract, typically during the second or third week of untreated typhoid.  

  • Thigh hemorrhage

    Bleeding at the upper part of the thigh, near the groin.  

  • Toxic hemoglobinuria

    Hemoglobinuria resulting from toxic substances such as muscarine or snake venom; toxic products of infectious diseases such as yellow fever, typhoid fever, syphilis, and certain forms of hemolytic jaundice; organisms such as Plasmodium malariae, which destroy red blood cells; and foreign protein in blood, e.g., following blood transfusion.  

  • Thomas heel

    A corrective shoe in which the heel is approx. 12 mm longer and 4 to 6 mm higher on the medial edge. This produces varus of the foot and prevents depression of the head of the talus.  

  • Thundering headache

    A sudden acute headache that may accompany intracranial hemorrhage. Its absence, however, does not rule out intracranial hemorrhage.  

  • Twisted hair

    Congenitally deformed hair that is short, brittle, and coiled.