Letter G
GYRUS
The surface of the brain that looks like cauliflower.
GYRIFORM
Having the look or appearance of a gyrus.
GYNECOMASTIA
Development or enlargement of glandular tissue in a man’s breast. This is not cancerous.
GROUPED MICROCALCIFICATIONS
These look like tiny white dots in groups or clusters (on a mammogram). If the individual dots are round and similar in size, there is a good chance that these are not cancerous. If the individual dots are jagged and/or different sizes, there is a good chance that these are cancerous. The radiologist is likely to recommend biopsy.
GREATER TROCHANTER
Outer edge of the hip/upper thigh bone.
GRE
Gradient sequence on MRI.
GRAY-WHITE JUCTION
The boundary where gray and white matter meet. Often times this area is blurred on CT or MRI when there is injury, stroke, or tumor.
GRAY MATTER
The darker outer layer of the brain. As opposed to white matter which is the inner “whiter” piece of brain.
GRANULOMA (chest)
A small mass in the lung (comes from the word “granule”) that is made of long-standing inflammatory cells. This may be related to an old, inactive infection. It is often calcified. It looks like a white dot on a chest x-ray.
GRANULOMA
Usually noncancerous growth (comes from the word “granule”) that is made of long-standing inflammatory cells. This may be related to an old, inactive infection. It is often calcified.
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