From the Research
The 3 mm nodule found in the fat anterior to the psoas muscle below the left kidney's lower pole is likely benign, given its small size and stability over three years, and does not require immediate intervention. The nodule's stability over three years is reassuring, as malignant lesions typically grow over time. Small nodules that appear after surgery often represent post-surgical changes such as scarring, small lymph nodes, or small areas of fat necrosis rather than recurrent cancer. The very small size (3 mm) and stability further support a benign etiology.
Key Points to Consider
- The nodule's size and stability are key factors in determining its likelihood of being benign, as noted in studies such as 1 which discusses the evaluation of pulmonary nodules.
- The fact that the nodule has remained stable for three years suggests that it is unlikely to be malignant, as malignant lesions typically grow over time.
- Continued surveillance with regular follow-up imaging is appropriate to ensure the nodule remains stable, as recommended in studies such as 2 which discusses the management of pulmonary nodules.
- If new symptoms or growth of the nodule are detected, prompt evaluation by a urologist or oncologist is necessary, as noted in studies such as 3 which discusses the diagnosis and management of thyroid nodules.
Recommendations for Management
- No immediate intervention is needed for the 3 mm nodule.
- Continued surveillance with regular follow-up imaging is recommended to ensure the nodule remains stable.
- Patients should be instructed to notify their urologist or oncologist promptly if they experience new symptoms or if future imaging shows growth of the nodule.
- The management of the nodule should be based on the estimated risk of malignancy and the presence and severity of compressive symptoms, as recommended in studies such as 3.