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Dr. David Dang

Radiology
Upland, CA
14 years experience male

Locations

Office

Upland, CA

Address

San Antonio Community Hospital, 999 San Bernardino Blvd, Upland, CA
Directions

David Dang

Upland, CA

About

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Radiology

Doctor Q&A

400 Answers
639 Agrees
The number of answers this doctor has agreed with.
A 44-year-old member asked:
Dr. David Dang
Radiology 14 years experience
See below: An MRI may not show the cause of knee pain and on the other hand abnormal findings on MRI do not necessarily correlate with symptoms all the time. The... Read More
A female asked:
Dr. David Dang
Radiology 14 years experience
See below: Xray and MRI are very different. A loose body seen on xray may not be visible on MRI if it's small and calcified and the radiologist reading the MRI d... Read More
A 30-year-old member asked:
Dr. David Dang
Radiology 14 years experience
See below: These findings are not uncommon in older persons. They are nonspecific but are more frequently related to chronic small vessel ischemic disease from d... Read More
A 33-year-old female asked:
Dr. David Dang
Radiology 14 years experience
See below: Nsaids are nonsteroidal antiinflammatory analgesics. They are not recommended in pregnancy, particularly during trimester. They are linked to prematur... Read More
A 32-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Not sure, possible: Stage 2 breast cancer are larger and/or have spread to nearby lymph nodes. Many treatments may help. The five-year survival rate for women with stage ... Read More
A 27-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Not likely.: This is a small cyst. Chance of malignancy is low, particularly at your age. Your doctor may consider follow up ultrasound.
A 31-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Likely not lung canc: Multiple bilateral small lung nodules in someone of your age would more likely be from prior infections. If from cancer, they are more likely metastas... Read More
A 28-year-old female asked:
Dr. David Dang
Radiology 14 years experience
See below.: It is preferrable to see the fetus in the fundus (top) of the uterus. Sometimes they can implant lower. Sometimes it's nothing to be concerned about. ... Read More
A 34-year-old female asked:
Dr. David Dang
Radiology 14 years experience
? uterine problems : I am not a fertility expert but i perform radiologic studies for infertility. There may be problems with the uterus, such as abnormal endometrium or m... Read More
A 38-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Small nodule.: When something is echogenic, it's brighter than the adjacent tissues or the background tissue of the organ. Technically it should be termed "hyperecho... Read More
A 30-year-old female asked:
Dr. David Dang
Radiology 14 years experience
See specialist.: It is not common to have tear of those ligaments. Typically if the posterior talofib is torn, the anterior talofib and calcaneaofib also torn. The tal... Read More
A 42-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Yes: Gallbladder stones (cholelithiasis) are typically detectable on ultrasound, sometimes better than ct. Very small stones may, however, be missed. At ti... Read More
A female asked:
Dr. David Dang
Radiology 14 years experience
Get help: It is possible that she's passing another stone or it could be something else. Urgent care may be advisable.
A 31-year-old member asked:
Dr. David Dang
Radiology 14 years experience
CT show more.: An ultrasound study is heavily dependent on the skills of the technologist. The us also does not typically see everything in the pelvis, particularly ... Read More
A 35-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Depends: A pet scan may be obtained from the skull base (lower head, just above spine) to the thigh or from the top of the head to the feet. If obtained from t... Read More
A 48-year-old member asked:
Dr. David Dang
Radiology 14 years experience
None: At present there are no definite good alternatives to mammograms for breast screening. Ultrasound and MRI are complimentary to mammograms but do not r... Read More
A 30-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Ask your doctor: It is probably best for you to ask your doctor. You are entitled to such information. Here is a possibility. The slow emptying you're refering to prob... Read More
A 39-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Depends: With the breasts being a fat storage site, a weight change may alter the mammographic density of the breast. This change may necessitate additional ev... Read More
A 44-year-old female asked:
Dr. David Dang
Radiology 14 years experience
See below: A knee MRI can diagnose various condition including ligament or meniscal tear, cartilage damage, arthritis, joint fluid, synovitis, infection or tumor... Read More
A 33-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Yes: This may be possible. If the stone was small (5mm) you may be able to pass it without much pain. It may also be possible that if you had an episode of... Read More
A 53-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Hard to say: It's hard to say. A foot xray may be able to show presence of fracture or bone formation around the nodule. Not sure if a foot ct would add additional... Read More
A 24-year-old male asked:
Dr. David Dang
Radiology 14 years experience
See below: A healthy liver should cause no pain but a liver pain is usually a vague and dull pain in the right upper abdomen. Occasionally it can be sharp and st... Read More
A 26-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Depends: This depends on your insurance and its coverage of in-network physician & surgical center versus out-of-network cost. A bucket handle tear is a men... Read More
A 48-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Small fibroid: An anteverted uterus tilts forward. This is the normal typical position, opposite of a retroverted uterus which tilts backward. A small intramural... Read More
A 49-year-old member asked:
Dr. David Dang
Radiology 14 years experience
See below: Ultrasound is heavily dependent on the skill of the technologist and the machine. Also depending on the location of the adnexa, it may not be visible ... Read More
A 35-year-old female asked:
Dr. David Dang
Radiology 14 years experience
MRI or bone scan: Rib pain can be due to infection, costochondritis, malignancy or trauma. If xray and ct are normal, an MRI or a bone scan may be useful for further ev... Read More
A 23-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Bracing or surgery: Spondylolysis refers to defects in the ring of the spine. Treatment depends on whether it is active or inactive. Active spondylolysis may have healing... Read More
A 18-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Typically not.: Ultrasound would show if you have blocked tubes if the blocked tubes are dilated. If the tubes are not dilated, they typically would not be visible on... Read More
A 62-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Probably ok: If you are asymptomatic a small amount of pericardial fluid is likely of no clinical significance. Be sure to check with your doctor to make sure that... Read More
A 40-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Consult your OB.: Please consult your OB doctor. The HCG level is about right for 6-7 weeks. Us usually shows fetal cardiac activity at this time.
A 73-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Depends: A ct scan done for hematuria is typically for kidney, ureteral or bladder stone. This is typically done without contrast. A ct with contrast will also... Read More
A 47-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Not sure: You would need a medical physicist to calculate the actual exposure dose.
A 34-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Depends: I hope you will be able to find help soon. Is this perceived delay in doctor appointment due to insurance arrangments? If not, can you see another doc... Read More
A 31-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Yes: Mri is very good for detection of uterine fibroids. It can determine the size & locations of the fibroids. It can show if the fibroid is degenerated o... Read More
A 26-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Possibly no symptoms: If you don't have pain, it may be safe to assume that you are not symptomatic. If the stones become dislodged, however, you may develop renal colic, w... Read More
A 61-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Yes: This depends on what symptoms the fibroids are causing. Besides surgery, fibroids may be treated by choking off blood supply with vessel embolization ... Read More
A 54-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Hard to say: It's hard to answer your question without knowing all the specifics and seeing the ct images. When they say "they can't see bronchial tube" it probabl... Read More
A 41-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Hard to say: It's hard to answer how dangerous it would be. Large kidney stones are more difficult to remove than small ones. Depending on its size, location & the... Read More
A 33-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Mammogram: Although the breast shadows do show up on a regular chest xray, cancer in the breasts cannot be diagnosed on a chest xray. Mammogram is the main diagn... Read More
A 48-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Consult your doctor: Something doesn't add up here. Ct usually does not help make a diagnosis of brain inflammation, even with contrast/dye. Brain inflammation is usually ... Read More
A 49-year-old member asked:
Dr. David Dang
Radiology 14 years experience
See below: Lung nodules are easier to evaluate when they are 1 cm or bigger, at which time we can evaluate them by biopsy or by pet. When the lung lesion is know... Read More
A 33-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Iron pill and foods: There are general vitamins high iron and also specific iron pills. Foods rich in iron include red meat, egg yolks, greens, beans, dried fruits, lentil... Read More
A 46-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Yes: Kidney stones typically cause pain when they cause obstruction. This is when the stone sits somewhere in the ureter and cause the kidney to dilate. St... Read More
A 27-year-old female asked:
Dr. David Dang
Radiology 14 years experience
Minimal risk: Your concern is understandable. Radiation exposure from a chest xray is minimal. For an adult (higher dose than children) a chest xray dose is equival... Read More
A 44-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Ultrasound: In this case the ultrasound is probably more accurate. The more accurate date, however, may be obtained from calculation using the day of last menstru... Read More
A 30-year-old female asked:
Dr. David Dang
Radiology 14 years experience
15 - 30 minutes: It's probably about 15-30 minutes, depending on whether it's transabdominal scanning or both transabdominal and transvaginal scanning and also on what... Read More
A 35-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Inside epididymis: A spermatocele is a sac (cyst) that develops inside the epididymis. Unless large and cause some discomfort, it is typically painless and noncancerous.... Read More
A member asked:
Dr. David Dang
Radiology 14 years experience
Nuclear : Nuclear medicine is a branch of radiology and is medical specialty. Nuclear medicine uses radioisotopes to evaluate physiological activity of both nor... Read More
A 43-year-old male asked:
Dr. David Dang
Radiology 14 years experience
Depends: This depends on the disease process. Mri as in mrcp is suitable for bile duct evaluation and certain liver and spleen conditions such as hemochromatos... Read More
A 30-year-old member asked:
Dr. David Dang
Radiology 14 years experience
Depends: There are a number of potential complications assoc w/ a thoracentesis. That being said, most of the time the procedure is safe. It is not unusual for... Read More

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

2
Recommendations
390
Thank you notes
HealthTap member
Mar 30, 2015
Dr. Dang is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Dang is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thank you, your answer was very helpful! No she did not. She told me that and said have a good day. Was not helpful at all. Didnt even show me the xray. Ehat do i do?
HealthTap member
Thanks for your quick reply! Thank u this MRI was done in early march everyone is telling me this could possibly be signs of ovarian cancer because of the iliac node
HealthTap member
Thank you doc for assisting us in any way...I have done the hsg in 2013 everything went well, my tube were fine also, I'm hoping for a miracle that's

Education & Training

Medical/Graduate school

University of California, San Diego School of Medicine
MD

Residency

Ohio State University Hospitals

Residency

University of California Irvine Medical Center

Awards

Magna Cum Laude - Poster Award, American Society of Emergency Radiology
Excellence in Research Award, Western Student Medical Research Forum
California Foundation for Biochemical Research Fellowship, California Foundation for Biochemical Research

Affiliations

American College of Radiology
Society of Skeletal Radiology
Los Angeles Radiological Society

Publications

Rice bodies (case review)
Primary aortic myxofibrosarcoma mimicking thrombus: findings on CT, MRI and angiography
Congenital absence of C7 pedicle
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less