Letter H
HYPERTROPHY
Thickening of a structure (usually muscle) and considered abnormal. To enlarge or get big.
HYPOATTENUATING
Appears dark on CT. This can help Radiologists characterize the abnormality on CT.
HYPODENSE
Appears dark on CT. This can help Radiologists characterize the abnormality on CT.
HYPOECHOIC
Appears dark on ultrasound. This can help Radiologists characterize the abnormality on ultrasound.
HYPOINFLATION OF THE LUNGS
Less than full inspiration. This can lead to hypoventilatory changes of the lungs on a chest x-ray.
HYPOINTENSE
An MRI term used to describe organ tissue that looks dark rather than bright. Often the term is followed by the sequence used. For example, your report may state “hypointense T2 signal”. This means that the tissue looks dark on T2 sequences.
HYPOVENTILATORY CHANGES
Abnormal appearance of the lungs on a chest x-ray caused by taking a shallow breath (less than full inspiration). This goes away when the patient takes a deep breath.
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