Parenchymal mucinous cystadenoma of the kidney: a case report and literature review

Abstract Background Mucinous cystadenoma (MC) of the kidney is exceedingly rare. We found 22 similar cases in the literature. These masses are underdiagnosed due to radiologic similarities with simple renal cysts. Case presentation A 66-year-old man with a previous history of hypertension and anxiet...

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Main Authors: Mahmoudreza Kalantari, Shakiba Kalantari, Mahdi Mottaghi, Atena Aghaee, Salman Soltani, Behtash Pedram Rad
Format: Article
Language:English
Published: SpringerOpen 2021-07-01
Series:African Journal of Urology
Subjects:
Online Access:https://doi.org/10.1186/s12301-021-00203-4
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author Mahmoudreza Kalantari
Shakiba Kalantari
Mahdi Mottaghi
Atena Aghaee
Salman Soltani
Behtash Pedram Rad
author_facet Mahmoudreza Kalantari
Shakiba Kalantari
Mahdi Mottaghi
Atena Aghaee
Salman Soltani
Behtash Pedram Rad
author_sort Mahmoudreza Kalantari
collection DOAJ
description Abstract Background Mucinous cystadenoma (MC) of the kidney is exceedingly rare. We found 22 similar cases in the literature. These masses are underdiagnosed due to radiologic similarities with simple renal cysts. Case presentation A 66-year-old man with a previous history of hypertension and anxiety was referred to our tertiary clinic with left flank pain. Ultrasound revealed a 60 mm-sized, complex cystic mass with irregular septa in the lower pole of the left kidney (different from last year's sonographic findings of a simple benign cyst with delicate septa). CT scan showed the same results plus calcification. Due to suspected renal cell carcinoma, a radical nephrectomy was performed. Postoperative histopathologic examination revealed a cyst lined by a single layer of columnar mucin-producing cells with small foci of pseudo-stratification, consistent with the MC’s diagnosis. The first follow-up visit showed normal blood pressure without medication and no flank pain and anxiety after a month. Conclusion It is quite challenging to distinguish the primary MC of the kidney from a simple renal cyst based on clinical and imaging findings. The radiologic features of these entities overlap significantly. Thus, complex renal cyst and renal cysts with mural nodules should be followed closely to detect malignancy earlier.
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spelling doaj.art-b30f09803dbc45caade53197127da9362022-12-21T22:45:49ZengSpringerOpenAfrican Journal of Urology1110-57041961-99872021-07-012711710.1186/s12301-021-00203-4Parenchymal mucinous cystadenoma of the kidney: a case report and literature reviewMahmoudreza Kalantari0Shakiba Kalantari1Mahdi Mottaghi2Atena Aghaee3Salman Soltani4Behtash Pedram Rad5Department of Pathology, Faculty of Medicine, Mashhad University of Medical SciencesFaculty of Medicine, Mashhad University of Medical SciencesKidney Transplantation Complications Research Center, Mashhad University of Medical SciencesNuclear Medicine Research Center, Mashhad University of Medical SciencesKidney Transplantation Complications Research Center, Mashhad University of Medical SciencesKidney Transplantation Complications Research Center, Mashhad University of Medical SciencesAbstract Background Mucinous cystadenoma (MC) of the kidney is exceedingly rare. We found 22 similar cases in the literature. These masses are underdiagnosed due to radiologic similarities with simple renal cysts. Case presentation A 66-year-old man with a previous history of hypertension and anxiety was referred to our tertiary clinic with left flank pain. Ultrasound revealed a 60 mm-sized, complex cystic mass with irregular septa in the lower pole of the left kidney (different from last year's sonographic findings of a simple benign cyst with delicate septa). CT scan showed the same results plus calcification. Due to suspected renal cell carcinoma, a radical nephrectomy was performed. Postoperative histopathologic examination revealed a cyst lined by a single layer of columnar mucin-producing cells with small foci of pseudo-stratification, consistent with the MC’s diagnosis. The first follow-up visit showed normal blood pressure without medication and no flank pain and anxiety after a month. Conclusion It is quite challenging to distinguish the primary MC of the kidney from a simple renal cyst based on clinical and imaging findings. The radiologic features of these entities overlap significantly. Thus, complex renal cyst and renal cysts with mural nodules should be followed closely to detect malignancy earlier.https://doi.org/10.1186/s12301-021-00203-4Mucinous cystadenomaMucinous cystadenocarcinomaRenal pelvisPyelocaliceal systemCase report
spellingShingle Mahmoudreza Kalantari
Shakiba Kalantari
Mahdi Mottaghi
Atena Aghaee
Salman Soltani
Behtash Pedram Rad
Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
African Journal of Urology
Mucinous cystadenoma
Mucinous cystadenocarcinoma
Renal pelvis
Pyelocaliceal system
Case report
title Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
title_full Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
title_fullStr Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
title_full_unstemmed Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
title_short Parenchymal mucinous cystadenoma of the kidney: a case report and literature review
title_sort parenchymal mucinous cystadenoma of the kidney a case report and literature review
topic Mucinous cystadenoma
Mucinous cystadenocarcinoma
Renal pelvis
Pyelocaliceal system
Case report
url https://doi.org/10.1186/s12301-021-00203-4
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AT atenaaghaee parenchymalmucinouscystadenomaofthekidneyacasereportandliteraturereview
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