Dr. Jeffrey Shyu

A 24-year-old female asked:

I feel like there is a bubble or something stuck under left ribcage... only when i'm anxious.. what could this be? also i have gallstones 24 female

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Hard to say: Is it in the front, side, back? Related to your breast? Under your armpit? It's probably nothing worrisome, but I'd go to your primary care physician ... Read More

3.4k viewsAnswered >2 years ago

A 33-year-old member asked:

Can you tell me, are multiple ct scans dangerous?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Depends: The cancer risk from each CT is very minor (a fraction of one percent), especially when compared to the lifetime risk of developing a cancer from any ... Read More

3.6k viewsReviewed >2 years ago

Dr. John Munshower and 3 doctors agree4 doctors agree

A 54-year-old female asked:

The uterus shows heterogenous echotexture and is diffusely enlarged.

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Nonspecific finding: May I ask how old you are? Recent pregnancy? Any specific pelvic symptoms (pain, bleeding, etc.)? It's a nonspecific finding, and can be seen in condi... Read More

3.4k viewsAnswered >2 years ago

5 thanks

A 23-year-old male asked:

Went to er for stomach pain when stretching. ultrasound showed hernia in bellybutton and sent home . pain still there, how do i know if strangulated?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Where is the pain?: Is the pain at the hernia site at your bellybutton? Or is it higher up? Any nausea/vomiting? Many people have hernias that don't cause strangulation, ... Read More

3.4k viewsAnswered >2 years ago

A 43-year-old male asked:

Will liver disease or cirrhosis show up on an ultrasound? my us came back normal, i am having ruq discomfort. possible hida scan next.

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Most of the time: Ultrasound can detect many of the morphologic changes of cirrhosis, but is not 100%. In one study, ultrasound detected those findings in about 90% of ... Read More

3.4k viewsAnswered >2 years ago

3 thanks

A female asked:

I'm having an mri on my abdomen can i eat an drink?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

NPO 6-8 hrs before: Many imaging departments and facilities request that patients receiving an abdomen MRI not eat or drink for 6-8 hours prior to the study. Of course, i... Read More

3.6k viewsAnswered >2 years ago

A 49-year-old female asked:

I have a large lump above my belly button. it swells when i eat & is horribly painful. it hurts when i stand too long too.

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Possible hernia: Your symptoms sound like an abdominal wall hernia (defect in the abdominal wall allowing bowel, etc. To protrude out). These can be treated surgically... Read More

4.3k viewsAnswered >2 years ago

A 25-year-old female asked:

For 2 months ive had fasciculations in my tongue everyday. maybe 10 single twitches a day. could this be the hyperexcitability phase in als?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Unlikely: ALS is quite rare and typically starts in the legs and arms with symptoms like stumbling, trouble writing, etc. Given that you take several psychiatri... Read More

3.4k viewsAnswered >2 years ago

A 38-year-old member asked:

What exactly is cerebellar tonsillar ectopia?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Tonsillar ectopia: The cerebellum is at the lower back of your brain, and is mainly responsible for motor coordination. The tonsils are at the midline of your cerebellum... Read More

3.4k viewsAnswered >2 years ago

12 thanks

A 33-year-old member asked:

How dangerous would it be to have two ct scans of the chest in a month?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

V. minor cancer risk: The cancer risk from an additional CT is quite low when compared to the lifetime risk of getting cancer from all causes. But, the most widely accepted... Read More

3.6k viewsReviewed >2 years ago

Dr. Warren Foster agrees1 doctor agrees

A 37-year-old member asked:

Forgot to drink gastrografin before ct scan, what to do?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Probably okay: Policies for different imaging facilities and departments differ, but usually CTs of the abdomen and pelvis without oral contrast are fine for interpr... Read More

3.6k viewsReviewed >2 years ago

Dr. Heidi Fowler and another doctor agree2 doctors agree

3 thanks

A 19-year-old female asked:

I found out mon. i was pregnant. doc. confirmed it. nothing is showing in the ultrasound. is something wrong? i'm 5 weeks.no symptoms. no weight gain

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Not necessarily: 5.0 weeks is about earliest time that one might expect to see findings of a pregnancy on a transvaginal ultrasound. That nothing was seen doesn't nece... Read More

3.4k viewsAnswered >2 years ago

A 44-year-old female asked:

What do thyroid us results mean? homogeneous echogenicity. multiple nodules bilaterally, no cysts id'd. heterogeneous parenchyma w/bilateral nodules.

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Thyroid nodules: Did they measure the largest nodules? Thyroid nodules are fairly common, and the vast majority of them are not cancerous, but if one is above 1 cm, a ... Read More

3.4k viewsAnswered >2 years ago

A 19-year-old female asked:

I'm 5 weeks. positive test. doctors confirmed it. no symptoms but my ultrasound doctors couldn't see anything. i go back in 2 weeks. is that normal?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

That's reasonable: 5.0 weeks is the very earliest time that a pregnancy would show up on transvaginal ultrasound, but because gestational dating by last menstrual period... Read More

3.4k viewsAnswered >2 years ago

A 31-year-old female asked:

Scan shows the left ovary has a 3cm echogenic cyst, probably a haemorrhagic follicular cyst. will this cause infertility issues? thank you.

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

It shouldn't: Hemorrhagic cysts are very common causes of pelvic pain, and not related to infertility. Also, your cyst is not large enough to typically cause ovaria... Read More

4.3k viewsReviewed >2 years ago

Dr. Walter Husar agrees1 doctor agrees

5 thanks

A 45-year-old female asked:

Just had a neck xray and didn't have breasts shielded . i forgot to ask. is that a concern and should i have had it?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

No need to worry: An x-ray typically provides a fraction of the radiation dose one might receive just from background radiation in one year. A ballpark amount is the ra... Read More

4.3k viewsAnswered >2 years ago

A 19-year-old male asked:

What does a prominent cisterna magma mean on an mri scan? does this affect memory?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

No need to worry: A prominent cisterna magna is an incidental finding, and won't cause you any problems. It won't affect your memory.

4.3k viewsReviewed >2 years ago

Dr. Walter Husar agrees1 doctor agrees

3 thanks

A male asked:

What is 9 mm nodular density in right lower lobe?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Lung nodule: It sounds like a lung nodule. I assume you had a CT of the chest, or abdomen (the latter of which includes the lower chest). If it appears to be a tru... Read More

3.4k viewsAnswered >2 years ago

A 24-year-old female asked:

What are the chances of getting ovarian cancer at 24? no family history

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Very unlikely: Ovarian cancer typically occurs in older women, after menopause, with an average age of around 60. It's very rare at your age, although they can also ... Read More

3.4k viewsAnswered >2 years ago

A 30-year-old female asked:

A man who does not ejaculate or not having sex for over a is it normal?

Dr. Jeffrey Shyuanswered

Radiology 12 years experience

Medications?: Some medications can also make it more difficult for men to ejaculate.

3.4k viewsAnswered >2 years ago