Periphyseal (both knees) hyperintensity on sagittal fat suppressed T2 Weighted image (a) and Proton Density Weighted image (b) and hypointensity on sagittal T1Weighted image (c) (arrows).
FOPE: Focal periphyseal edema
– Mostly around the knees
– Both genders can be affected during skeletal maturation
– Painful manifestation of physiologic physeal fusion
31-year-old male:
* With flank pain
* Increased inflammatory parameters
* Decreased kidney function
Why is the right kidney less dense than the left?
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Obstructive kidney stone in the right proximal ureter (arrow) with secondary hydronephrosis
The increased pressure in the collecting system slows the ultrafiltration of urine and causes a slower enhancement of the right kidney in comparison with the left kidney, reflecting the impaired kidney function
1. Mixed lytic and sclerotic lesions of the skull (cotton wool appearance).
2. Widening of the diploic space.
3. Frontal bone enlargement giving the appearance of the Tam o’Shanter hat
23-year-old male:
* Blunt force trauma of the abdomen
* Patient is hemodynamically stable
What do you see?
Arterial phaseVenous phaseArterial phaseVenous phaseClick here to see the answer
Findings:
* Linear zone of hypodensity through the pancreatic body on both phases
* Surrounding fluid with relatively high-density retroperitoneal AND intraperitoneal
Note that the pancreas may appear normal in 20%-40% of patients when CT is performed within 12 h after trauma
MRCP may be useful to evaluate the integrity of the pancreatic duct
Pancreatic fracture:
* Complete laceration of the pancreatic body: AAST Grade III
* Require surgery within 24h
* Possible complications: fistula, pseudocyst, pancreatitis, abscesses, hemorrhage, pseudo-aneurysm
* Usually, injuries of other organs as well
Treatment in this case: distal pancreatectomy and closing of main pancreatic duct transsection, discharge to hospital in home country after 2 weeks
* Extra-axial CP angle mass.
* Heterogenous low signal intensity on T2.
* Intense enhancement on post-contrast images with thickening and enhancement of the tentorium cerebelli.
* No intracanalicular extension. Differential diagnosis: Schwannoma, ependymoma, metastasis