9 results
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
Non-contrast CT ... obstruction - Able ... causes of flank ... causes of obstruction ... the lower and upper
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
Algorithm and Differential ... Painful: suggests calculi ... RBC’s, RBC/WBC casts ... ), throughout (upper ... #Differential #Algorithm
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... Extraglomerular - Upper ... Tubulolnterstitial • Calculi ... • BPH • Calculi ... #Causes
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
mSv 765 CXRs Upper ... 50 CXRs Head CT ... CXRs Abdomen CT ... #Nuclear #Comparison ... #Table #Risks #
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... eyelashes on the upper ... lid • Cause: ... Stye #Chalazion #Comparison ... #Table
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
Computed Tomography (CT ... Computed Tomography (CT ... mSv 3 years - Upper ... #Nuclear #Comparison ... #Table #Risks #
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
Differential Diagnosis Algorithm ... • Upper ... Neoplasm - Non-Pathogenic ... Differential #Diagnosis #Algorithm ... #Causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... seen • Chest CT ... shows a small, stable ... Lung Abscess Pathogens ... #differential #causes
Reproductive Number (R0 "R Naught") showing how contagious / transmissible a pathogen is.  The R0
transmissible a pathogen ... Ebola) and their case-fatality ... take into account case-fatality ... #coronavirus #comparison ... #table #SARS #Ebola