case_images: PMC4719503_01
case_images: Initial 9 cm right renal cyst
case_images: UA-8-114-g001.jpg
case_images: PMC4719503_01_UA-8-114-g001.jpg
case_images: F1
case_images: A computed tomography (CT) scan of the abdomen and pelvis renal mass protocol showed a 9 cm mass with fluid density and very thin intracystic septations representing a Bosniak II cyst in her right kidney [Figure 1].
case_images: Paracolonic cystic lesion (white arrow) along the ascending colon in relation to recurrent right renal mixed epithelial stromal tumor cyst (red arrow)
case_images: UA-8-114-g002.jpg
case_images: PMC4719503_01_UA-8-114-g002.jpg
case_images: F2
case_images: Interestingly, she was also found to have multiple cystic lesions near the ascending colon with similar radiologic features as the renal cyst suspicious for MEST deposits [Figure 2].
case_images: Mesenteric multiloculated paracolonic mixed epithelial stromal tumor lesion (arrows)
case_images: UA-8-114-g003.jpg
case_images: PMC4719503_01_UA-8-114-g003.jpg
case_images: F3
case_images: Then she underwent an excision of cystic multiloculated mesenteric lesion that was attached to the ascending colon [Figure 3] by the colorectal team using Endo GIA  stapler.
case_images: H and E stain of the renal cyst showing dense fibrous, loose, smooth muscle, hypercellular spindled, and ovarian stroma-like elements (x40)
case_images: UA-8-114-g004.jpg
case_images: PMC4719503_01_UA-8-114-g004.jpg
case_images: F4
case_images: The stroma was composed of areas of dense fibrous, loose, smooth muscle, hypercellular spindled, and ovarian stroma-like elements [Figure 4].
case_images: Immunohistochemical stain of stroma is positive for estrogen receptor (x200)
case_images: UA-8-114-g005.jpg
case_images: PMC4719503_01_UA-8-114-g005.jpg
case_images: F5