Left Kidney Calcifications: What You Need to Know - Urology

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Left renal calcification?


Hello Doctor: At the end of last month (October 30, 2020), I underwent a health checkup arranged by my company at the hospital.
Today, I received a report indicating that the abdominal ultrasound revealed calcifications in the left kidney (the report did not specify the size).
However, on October 7, I visited the nephrology department due to hematuria and an abdominal mass, and the doctor at that time arranged for a urinary tract imaging and a kidney ultrasound, which did not mention any calcifications or abnormalities such as stones or tumors; the only finding was a floating kidney.
Since the two examinations were very close in time (one at the beginning of the month and one at the end), but the results differ, I am feeling confused.
I would like to ask: 1.
What do the calcifications found in the health check mean? 2.
Should I return to the nephrology department for further confirmation? 3.
What can I do to restore my kidney health? Thank you.

Kunhuo de ren, 30~39 year old female. Ask Date: 2020/11/19

Dr. Du Shixi reply Urology


Hello: 1) Most likely small stones, but the health check report will require you to see a urologist.
2) A nephrologist can also be consulted.
3) Drink plenty of water, limit sugary beverages, and engage in moderate exercise.
Wishing you good health.

Reply Date: 2020/11/19

More Info


Understanding left kidney calcifications can be a source of concern, especially when there are discrepancies in medical reports. Let's break down your questions and provide clarity on this topic.

1. What are the calcifications found in the left kidney?
Calcifications in the kidney can occur for various reasons. They may represent benign conditions such as renal stones (calculi), which can be composed of calcium oxalate, calcium phosphate, or other minerals. Alternatively, they could indicate chronic kidney disease or other pathological processes. In some cases, calcifications can be associated with previous infections or inflammation. The absence of any mention of size in your report is notable; larger calcifications are more likely to cause symptoms or complications, while smaller ones may be incidental findings.

2. Should you return to the nephrology department for further evaluation?
Given that there is a discrepancy between your previous ultrasound and the recent health check report, it would be prudent to follow up with your nephrologist. They can provide a more comprehensive evaluation, potentially including repeat imaging studies or additional tests to assess the nature of the calcifications. It’s essential to ensure that there are no underlying issues that need to be addressed, especially since you mentioned having hematuria (blood in urine) and an abdominal mass previously.

3. How can you maintain or restore kidney health?
Maintaining kidney health involves several lifestyle and dietary modifications:
- Hydration: Ensure you are drinking enough water daily. Adequate hydration helps dilute urine and can prevent the formation of kidney stones.

- Diet: A balanced diet low in sodium and rich in fruits and vegetables can support kidney function. If you have calcium-based stones, you may need to moderate your intake of high-oxalate foods (like spinach, nuts, and chocolate) and ensure adequate calcium intake through dietary sources rather than supplements.

- Regular Check-ups: Regular follow-ups with your healthcare provider are crucial, especially if you have a history of kidney issues. Monitoring kidney function through blood tests (like creatinine and eGFR) and urine tests can help catch any changes early.

- Avoiding Nephrotoxins: Limit the use of non-steroidal anti-inflammatory drugs (NSAIDs) and other medications that can harm the kidneys. Always consult your doctor before starting any new medication.

- Managing Underlying Conditions: If you have conditions like hypertension or diabetes, managing these effectively is vital for kidney health.

In summary, while the discovery of calcifications in your left kidney may be concerning, it is essential to interpret these findings in the context of your overall health and any symptoms you may be experiencing. Following up with your nephrologist for further evaluation is advisable, and adopting a kidney-friendly lifestyle can help maintain your renal health. Always feel free to ask questions and seek clarification from your healthcare providers regarding any findings or concerns you may have.

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