25 results
Ultrasound

Preferred procedure in pregnant women and in patients allergic to IV contrast.
Not dependent on the composition
US: Lower pole calculus ... Nephrolithiasis #KidneyStones ... IVContrastAllergies #Diagnosis #calculus
UROLITHIASIS 

80% of stones are composed of calcium oxalate or phosphate. Others include uric acid (9%),
staghorn or large calculus ... struvite #stone #kidneystones ... flankpain #PCN #calculus
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
Modalities for Renal Calculus ... to identify non-calculus ... Useful for non-calculus ... Imaging #Modalities #Calculi ... Kidney #stones #calculus
Types of Renal Calculi

Calcium oxalate
 - Interstitial apatite plaque, Low urine volume, Increased urinary calcium excretion,
Types of Renal Calculi ... heart failure #Calculi ... diagnosis #causes #calculus
Causes of Hematuria - Differential Diagnosis
Renal:
 - Glomerular - IgA Nephropathy, Thin basement membrane, Alport syndrome,
or other tumor, Calculi ... - Malignancy, Calculi ... Schistomiasis, Malignancy, Calculi
Algorithm and Differential Diagnosis of Macroscopic Hematuria
Important Historical Elements:
- Painless: suggests malignancy
- Painful: suggests calculi/infection
- Urinalysis:
Painful: suggests calculi
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Tubulolnterstitial • Calculi ... • BPH • Calculi
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
POST-RENAL Urinary calculi
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
OBSTRUCTIVE • Urinary calculi
Mercedes Benz sign
Radiological sign, a triradiate radiolucent shadow, characteristic of the automobile maker's trademark. In case
the body of a calculus ... Center of calculus