Category: A

A sustained maladaptive response to a traumatic, overwhelming event.  

In dentistry, a cast restoration that extends into the root of a tooth to anchor a dental crown or prosthesis.  

Any one of several postures that reduce edema and the shortening of ligaments and tendons caused by abnormal muscle tone (e.g., in patients with injuries or burns).  

A radiographical examination position in which the central ray enters the front of the body and exits from the back.  

A rare metabolic disorder inherited as an autosomal dominant trait. It is characterized by excessive excretion of porphyrins, episodes of acute abdominal pain, sensitivity to light, and neurological disturbances. The disorder is sometimes precipitated by the excessive use of sulfonamides, barbiturates, or other drugs.  

A minute opening that is thought to exist between adjacent alveoli of the lung.  

The accumulation of blood in the visceral organs of the abdominal cavity. This may occur as a result of abdominal trauma.  

A nasal polyp found near the posterior wall of the maxillary sinus.  

Benign neoplastic tissue originating in the glandular epithelium.  

Polyneuropathy characterized by deposition of amyloid in nerves.