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A 51-year-old female asked:

is the hot cross bun sign on radiological imaging always significant or could it be a benign occurrence?

2 doctor answers3 doctors weighed in
Dr. Dominic Mazzocchi
Specializes in Internal Medicine
Hot buns: Usually refers to sign on an MRI is related to variety of neuro degenerative diseases not usually a begin appearance unless there was a problem with the film
Dr. Michael Gabor
Diagnostic Radiology 33 years experience
If you are: referring to Brain MRI, the "hot cross buns" sign in the pons is the result of selective neuronal degeneration/loss in that area, so it is never normal. It is associated with a variety of neurodegenerative disorders, particularly multisystem atrophy.

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What imaging might I get in the emergency room (er)?

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Depends on symptoms: X-rays or radiographs are the most frequent images obtained in the er and are used for diagnosing fractures and pneumonia. With severe trauma (ex car accident) ct is frequently used as well as for conditions such as appendicitis, kidney stones, and abdominal conditions. Ultrasound is used for conditions such as gallstones, pregnancy. Mri may be used for evaluation of the brain or spine.
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What imaging is being done on hydranencephaly?

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Dr. Henry Ng
Dr. Henry Nganswered
Internal Medicine and Pediatrics 20 years experience
Depends: I assume you mean hydrocepahlus - aka "water on the brain". This is a condition with an abnormality in cerebrospinal fluid flow/production and results in increased pressure within the ventricular system. This can occur in infancy and is noted with a rapidly enlarging head, but can be acquired after infection or trauma/bleeding in the brain usually an head ultrasound or ct is done.

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Last updated Aug 31, 2018
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