All are true regarding a renal pseudotumor except?
**Core Concept**
A renal pseudotumor, also known as a renal phlebolith or renal sinus fat pseudotumor, is a benign radiologic appearance that can mimic a renal mass or tumor on imaging studies. It is often caused by the presence of a phlebolith or a cluster of vessels within the renal sinus.
**Why the Correct Answer is Right**
A renal pseudotumor is a common finding in patients with a history of vascular disease, trauma, or congenital anomalies. It is usually seen as a well-defined, rounded or oval mass in the renal sinus on imaging studies, but it does not represent a true neoplasm. The presence of a renal pseudotumor can sometimes lead to unnecessary surgical intervention or biopsy.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a renal pseudotumor is not a true neoplasm, but rather a benign radiologic appearance caused by a phlebolith or a cluster of vessels.
**Option B:** This option is incorrect because a renal pseudotumor can sometimes be confused with a renal mass or tumor on imaging studies, but it does not represent a true neoplasm.
**Option C:** This option is incorrect because a renal pseudotumor is not a sign of underlying malignancy, but rather a benign radiologic appearance.
**Option D:** This option is incorrect because a renal pseudotumor can be seen in patients with a history of vascular disease, trauma, or congenital anomalies.
**Clinical Pearl / High-Yield Fact**
It is essential to carefully evaluate the imaging findings and clinical history to distinguish a renal pseudotumor from a true renal mass or tumor. A renal pseudotumor is often seen in patients with a history of vascular disease, trauma, or congenital anomalies.
**Correct Answer:** A. A renal pseudotumor is not a true neoplasm.