Case 6
Clinical History:
        A three-year-old girl had not been able to walk for 1 day. Here are her plain abdominal film, renal ultrasonograms, and a film of  both knees.
.

Figure 1. Plain abdominal film

 
 
 
 
 
Figure 2. Renal ultrasonograms

.
Figure 3. Film of both knees
.

What is your diagnosis?
.
 

ANSWER