Category: E

Uric acid derived from purines undergoing metabolism from the nucleic acid of body tissues.  

Uranium with a higher concentration of the radioisotope than is found in natural uranium ore. The isotope is used to manufacture nuclear fuel rods (for electrical power generation) and nuclear weapons.  

The use of ultrasonic transducers carried within a bronchoscope to evaluate tissues in or adjacent to the trachea and bronchi. EBUS can be used to identify solid masses to be biopsied. It helps distinguish solid masses, which may be malignant, from blood vessels such as the aorta or pulmonary arteries, which should not be penetrated…

An abnormal structure formed in the development of enamel, consisting of poorly calcified twisted rods.  

Tuberculosis originating from a source outside the body. Tuberculosis that originates from an external source to the body.  

Tuberculosis that reactivates after a previous infection. The transmission of tuberculosis from an initial active site within the body to another part or organ.  

An action tremor associated with catecholamine excess (e.g., in association with anxiety, thyrotoxicosis, hypoglycemia, or alcohol withdrawal). It may occur as a side effect of drugs (e.g., epinephrine, caffeine, theophylline, amphetamines, levodopa, tricyclic antidepressants, lithium, and corticosteroids).  

Transfer of an ovum from an ovary to an opposite tube through the pelvic cavity.  

Transfer of eggs retrieved from ovarian follicles into the fallopian tubes.  

Traction applied to any fracture (e.g., compression fractures of the face using metal or plaster headgear for anchorage).