ADENOPATHY
Refers to enlarged or abnormal lymph nodes. Both benign conditions (such as infection/ inflammation) and cancer can cause this.
ADJACENT
Adjective. Next to.
ADNEXA
Space immediately next to the uterus in female pelvis, one on each side. For example, ovary is found in the adnexa.
ADNEXAL
Anything related to adnexa (see above).
AERATION
Inflating the lung with air.
AIR BRONCHOGRAM SIGN
Distinct outlining of the small airways in the lungs on a chest x-ray. This is most commonly seen in pneumonia.
AIR SPACE DISEASE
Fluid in a part of the lungs. Normally, all parts of the lungs should be filled with air. This term is interchangeable with “alveolar disease”. This is often seen with pneumonia or severe pulmonary edema.
AIR-FLUID LEVEL
A finding that indicates the presence of both air and fluid in a pocket. This can be seen with a cavitary process or a hiatal hernia.
ALIGNMENT
The way that the vertebrae (backbone) are stacked on top of each other. Normally aligned vertebrae are stacked on each other like Lego blocks without slippage.
ALLERGIC FUNGAL SINUSITIS
This is a sinus infection this is caused by a fungus rather than a bacterium or virus. It usually requires treatment by an ENT doctor. It has a characteristic look on CT with bright or "dense" secretions.