Question

A 30 year old female with sterile Pyuria. Radiograph is shown. Diagnosis is

• A. Nephrocalcinosis
• B. Putty Kidney
• C. Stag horn calculus
• D. Psoas Calcification

Answer 1

The Correct Option is B

To solve this question, we need to associate the clinical features and radiographic findings with one of the listed options.

First, consider the term sterile Pyuria, which refers to the presence of white blood cells in the urine without bacterial infection. This condition can be linked to renal tuberculosis.

Renal tuberculosis can lead to calcification and destruction of the renal parenchyma, resulting in a characteristic appearance on imaging, sometimes referred to as Autonephrectomy or Putty Kidney. A 'Putty Kidney' reflects the advanced sequelae of renal tuberculosis.

Now, let's evaluate each option:

• Nephrocalcinosis: This refers to the diffuse calcification within the renal parenchyma, often related to metabolic conditions, and not typically associated with sterile pyuria.
• Putty Kidney: This option fits with the history of sterile pyuria and the expected radiographic findings following renal tuberculosis.
• Staghorn Calculus: A staghorn calculus is a large kidney stone that takes the shape of the renal pelvis and can cause hematuria, but not sterile pyuria.
• Psoas Calcification: While this involves calcification, it is related to musculature and not the kidney specifically.

Based on the description and understanding of renal tuberculosis, the most suitable diagnosis that correlates with sterile pyuria and the radiographic findings is Putty Kidney.