PMC8255484_01
Computed tomography (CT) shows a hypodense mass of 1.8 x 1.5 x 1.4 cm in the lower pole of the right kidney. Contrast-enhanced CT scan shows a polycystic mass with slight enhancement of the wall and septa and no enhancement in the cystic part. The right lower pole of the kidney is partially depressed, and contrast-enhanced images show local thinning of the renal cortex during cortical enhancement. (A) Unenhanced images. (B-D) With contrast. (B) Renal cortical phase. (C) Renal corticomedullary phase. (D) Renal excretory phase.
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F1
It showed a heterogeneous hypodense mass in the lower pole of the right kidney, measuring ~1.8 x 1.5 x 1.4 cm (Figure 1).
The microscopic pathology proved the diagnosis of renal endometriosis characterized by endometrial glands and embedded stromal cells [hematoxylin and eosin stain (H and E), x 200 magnification].
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F2
Microscopic examination confirmed the diagnosis of renal endometriosis characterized by endometrial glands and embedded stromal cells (Figure 2).