Category: F

  • Functional impotence

    Impotence not due to an organic or anatomical defect; usually of psychogenic origin. The individual may experience impotence with one or more sexual partners, but not with others.  

  • Focal illumination

    Concentration of light on an object by means of a mirror or a system of lenses.  

  • Folk illness

    A disease or condition found only in specific societies, ethnic groups, or cultures. Often the culture has causal explanations for these illnesses, as well as preventive and treatment measures. Well-known examples are present in the Hispanic American culture (e.g., empacho, caida de mollera, mal de ojo, susto). These are diagnosed and treated by folk healers…

  • Fixed idea

    An idea that completely dominates the mind despite evidence to the contrary; a delusion.  

  • Fetal hypoxia

    Low oxygen levels in the fetus, commonly as a result of diminished placental perfusion, uteroplacental insufficiency, or umbilical cord compression. The condition often is accompanied by acidosis and is life-threatening unless prompt interventions are undertaken to restore well-oxygenated blood to the fetus. Signs of early fetal hypoxia include tachycardia and increased fetal heart rate variability;…

  • False hypertrophy

    Hypertrophy with degeneration of one constituent of an organ and its replacement by another.  

  • Frontal internal hyperostosis

    An osteoma, usually multiple or arising from the internal area of the frontal bone.  

  • Facultative hyperopia

    Hyperopia that can be corrected by accommodation.    

  • Familial hyperchylomicronemia

    An inherited disorder of lipoprotein metabolism characterized by elevated plasma chylomicrons and triglycerides. It is usually caused by a deficiency of lipoprotein lipase or its cofactor apolipoprotein C-II. Clinical findings include repeated episodes of pancreatitis. The blood of affected patients has a creamy or milky appearance.  

  • Fracture of humerus

    Disruption of the bony cortex of the upper arm. If the fracture is of the upper end of the humerus, the arm is abducted and splinted for about 4 weeks. Movements of the elbow and wrist are started early, and active movements of the shoulder are begun in about 3 weeks. The humerus, or the…