Cardiac
GI
Bone
GU
Neuro
Peds
Faculty
Student
Quizzes
Image DDX
Mobile
  Misc
Videocasts

 

 

Case of the Week 351




What's the most likely diagnosis?

  • 36 year-old female with flank pain



Left Kidney-Contrast-Enhanced CT Urogram

  1. Hydronephrosis
  2. Renal Cell Carcinoma
  3. Xanthogranulomatous Pyelonephritis
  4. Cystic Nephroma
  5. Staghorn calculus

Additional Image - Axial contrast-enhanced CT of the upper abdomen

 

Additional Image

.

.

Axial contrast-enhanced CT of the upper abdomen

.


Answer:

.


4. Cystic Nephroma

.

.

More (Click Discussion Tab)


Cystic Nephroma

General Considerations

  • Rare, unilateral multi-loculated cystic tumor lacking blastemal elements
  • Solitary, well-circumscribed
  • Non-communicating fluid-filled locules, surrounded by thick, fibrous capsule
  • Do not connect to the collecting system
  • Usually quite large (mean 7.6 cm by 9.7 cm)
  • Most common in lower pole
  • Bimodal occurrence
    • Affects males more often in childhood ( 3 months-4 years)
      • 50% cystic nephromas and 50% CPDN (see below)
    • Females more frequently in adulthood (>30)

    More ...


    .

    This Week
    36 year-old female with flank pain
     
    This video podcast covers the most common fractures and dislocations that affect the hand; there is a mini-quiz included
     
    A trim mobile version for your PDA or internet-enabled smartphone with handy lists of differential diagnoses, most commons and more
     
    Key points on recognizing the most common fractures and dislocations
     
    Basic CT imaging of the brain focusing on the findings of cerebrovascular accidents
     
    The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology
     
    Recognizing normal and  key abnormal intestinal gas patterns, free air and abdominal calcifications
     
    Some of the fundamentals of interpreting chest images
    LearningRadiology.com
    is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.