EURORAD ESR

Case 14965

Calyceal diverticulum containing 'milk of calcium'

Author(s)
Pedro Gil Oliveira, Cristina Ferreira, Manuel Cruz, José Ilharco, Luís Curvo Semedo, Filipe Caseiro Alves

Department of Imagiology,
Hospital Centre and University of Coimbra,
Portugal;
Email:pedro.gb.oliveira@gmail.com
 
Patient
female, 43 year(s)
 
 
  • Figure 1
    Plain abdominal radiograph

    Plain abdominal radiograph showing a radio-opaque structure projected in the region of the left kidney, that measures 20 x 21 mm, compatible with calcification.

     
    Area of Interest: Kidney; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;
     
     
  • Figure 2
    Fluoroscopic study of the kidney during the diagnostic ureteroscopy procedure

    After contrast administration via the ureteroscope, there is opacification of the renal pelvis and calyces, with no filling defects.

     
    Area of Interest: Kidney; Imaging Technique: Fluoroscopy; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;
     
     
  • Figure 3
    Computed tomography urography
     

    Before contrast injection: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk...

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;

    Corticomedullary phase: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk of...

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;

    Nephrographic phase: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk of...

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;

    Excretory phase: The structure gradually fills with contrast, thus indicating a connection with the collecting system – compatible with diagnostic of calyceal diverticulum, containing “milk of calcium”.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;

    Excretory phase in prone position: mobility of the “milk of calcium” to the pending position within the calyceal diverticulum.

     
    Area of Interest: Kidney; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Calcifications / Calculi;
     
     
Plain abdominal radiograph showing a radio-opaque structure projected in the region of the left kidney, that measures 20 x 21 mm, compatible with calcification.
 
After contrast administration via the ureteroscope, there is opacification of the renal pelvis and calyces, with no filling defects.
 
Before contrast injection: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk of calcium”.
 
Corticomedullary phase: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk of calcium”.
 
Nephrographic phase: well-defined, thin-walled and low-density structure, located at the left kidney, that contains high attenuation material lying in the pending position - calcifications in the form of “milk of calcium”.
 
Excretory phase: The structure gradually fills with contrast, thus indicating a connection with the collecting system – compatible with diagnostic of calyceal diverticulum, containing “milk of calcium”.
 
Excretory phase in prone position: mobility of the “milk of calcium” to the pending position within the calyceal diverticulum.
 
 
 
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