Category: P

Hyperkeratotic areas of the soles and palms with erosion and pitting. The etiology is unknown but may involve infection with Corynebacterium or Actinomyces. It occurs mostly in barefooted adults in the tropics.  

A delayed hypersensitivity response (type IV) to antigens in the conjunctiva. The disease may be caused by Chlamydia, Mycobacterium tuberculosis, and Staphylococcus aureus. Symptoms include pain and photophobia; in severe cases, perforation of the cornea can occur. Treatment depends on the underlying cause.  

Punctate epithelial defects on the cornea epithelium, often seen in dry eye.  

Circumscribed inflammation of the conjunctiva and cornea accompanied by the formation of small projections called phlyctenules, which consist of accumulations of lymphoid cells. The phlyctenules soften at the apices, forming ulcers.  

A synovial joint between bone surfaces, in which only gliding movements are possible.  

A jejunostomy created for feeding purposes with the use of an endoscope and guide wire.  

A jacket crown tooth restoration made of porcelain.  

The passageway between the nasopharynx and oropharynx.  

An increase in the fussiness of a sick child when comforted by a parent. It is considered to be a physical sign of meningitis or of recent child abuse.  

Iritis with a purulent exudate.