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Non-masslike Adrenal Abnormalities
In this video lecture, we discuss the normal imaging appearance of the adrenal glands, as well as multiple common and rare non-masslike adrenal abnormalities on CT and MRI.
Key points include:
- The adrenal glands normally have an inverted “V”
or “Y” configuration.A linear, disk-like adrenal gland or “pancake”
adrenal gland indicates congenital malposition or absence of the ipsilateral
kidney.Adrenal hyperenhancement raises suspicion for
developing shock and may signal a therapeutic window to act upon. Adrenal calcifications can be caused by prior
hemorrhage, infection, tumors and metabolic syndromes. On MRI, T1-weighted in-phase GRE images can be
helpful in identifying calcification due to dark blooming caused by susceptibility
artifact.Adrenal atrophy may indicate adrenal
insufficiency.Adrenal hyperplasia is identified when adrenal
limbs measure greater than 10 mm in thickness and may or may not be hormonally
functioning.Nonhemorrhagic adrenal infarction appears as a
nonenhancing, edematous adrenal gland with surrounding stranding and restricted
diffusion.Adrenal infarction can be seen in
hypercoagulable states, antiphospholipid-antibody syndrome and pregnancy.
The post Non-masslike Adrenal Abnormalities appeared first on Radquarters.
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By Daniel J. Kowal, MD
4.9
7676 ratings
In this video lecture, we discuss the normal imaging appearance of the adrenal glands, as well as multiple common and rare non-masslike adrenal abnormalities on CT and MRI.
Key points include:
- The adrenal glands normally have an inverted “V”
or “Y” configuration.A linear, disk-like adrenal gland or “pancake”
adrenal gland indicates congenital malposition or absence of the ipsilateral
kidney.Adrenal hyperenhancement raises suspicion for
developing shock and may signal a therapeutic window to act upon. Adrenal calcifications can be caused by prior
hemorrhage, infection, tumors and metabolic syndromes. On MRI, T1-weighted in-phase GRE images can be
helpful in identifying calcification due to dark blooming caused by susceptibility
artifact.Adrenal atrophy may indicate adrenal
insufficiency.Adrenal hyperplasia is identified when adrenal
limbs measure greater than 10 mm in thickness and may or may not be hormonally
functioning.Nonhemorrhagic adrenal infarction appears as a
nonenhancing, edematous adrenal gland with surrounding stranding and restricted
diffusion.Adrenal infarction can be seen in
hypercoagulable states, antiphospholipid-antibody syndrome and pregnancy.
The post Non-masslike Adrenal Abnormalities appeared first on Radquarters.