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Kim JW, Kim KA, Sim KC, Lee J, Park BN, Song MJ, Park YS, Lee J, Choi JW, Lee CH. Ectopic lesions in the abdomen and pelvis: a multimodality pictorial review. Abdom Radiol (NY) 2022; 47:2254-2276. [PMID: 35441342 DOI: 10.1007/s00261-022-03520-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/02/2022] [Accepted: 04/04/2022] [Indexed: 11/29/2022]
Abstract
Various ectopic lesions occur in the abdomen and pelvis and affect multiple organs including liver, gallbladder, pancreas, spleen, and organs of the genitourinary system. Ectopic organs may be present outside their normal positions, or ectopic tissues may develop while the original organ exists in its normal position. Both benign and malignant lesions can occur in ectopic organs and tissues. Owing to their unusual location, they can often be misdiagnosed as other lesions or even malignant lesions, such as metastasis or seeding. This multimodality pictorial review provides various cases of ectopic lesions in the abdomen and pelvis, which will help narrow the differential diagnosis and guide clinical decision-making.
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Affiliation(s)
- Jeong Woo Kim
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Kyeong Ah Kim
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea.
| | - Ki Choon Sim
- Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Jisun Lee
- Department of Radiology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Bit Na Park
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Mi Jin Song
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Yang Shin Park
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Jongmee Lee
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Jae Woong Choi
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
| | - Chang Hee Lee
- Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea
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Tan JW, Velaga J, Yuen JSP, Cheng XM, Law YM. Periprostatic schwannoma mimicking metastatic lymphadenopathy in a case of multifocal prostate adenocarcinoma. J Radiol Case Rep 2021; 15:9-18. [PMID: 34267866 DOI: 10.3941/jrcr.v15i3.4210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Schwannomas of the prostate are a rare entity and usually diagnosed incidentally following surgical management of presumed benign prostate hyperplasia or prostate adenocarcinoma. We present a case of sporadic periprostatic schwannoma diagnosed in conjunction with multifocal prostate adenocarcinoma on pre-operative multiparametric magnetic resonance imaging.
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Affiliation(s)
- Jia Wei Tan
- Department of Diagnostic Radiology, Singapore General Hospital, Singapore
| | - Jyothirmayi Velaga
- Department of Diagnostic Radiology, Singapore General Hospital, Singapore
| | | | - Xin Min Cheng
- Department of Anatomical Pathology, Singapore General Hospital, Singapore
| | - Yan Mee Law
- Department of Diagnostic Radiology, Singapore General Hospital, Singapore
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Pepe P, Pepe L, Pennisi M, Fraggetta F. Giant retrovesical ectopic prostatic adenoma. Case report and revision of the literature. Urol Case Rep 2020; 33:101383. [PMID: 33102081 PMCID: PMC7574036 DOI: 10.1016/j.eucr.2020.101383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/09/2020] [Accepted: 08/12/2020] [Indexed: 11/26/2022] Open
Abstract
We report a case of giant retrovesical adenoma originating from ectopic prostatic tissue. A 73-year-old man presented with progressive dysuria, increasing PSA values, and acute urinary retention. One year before presentation, the patient had undergone retropubic prostatic adenomectomy for benign prostate hyperplasia. At last admission, PSA value was 23 ng/ml; mpMRI demonstrated a dysomogeneus retrovesical mass of 8 cm in diameter. Biopsy histology demonstrated acute prostatitis of the residual parenchyma and a prostatic adenoma in the retrovesical mass. After antibiotics and restored spontaneous urination, the patient was discharged and refused surgical lesion removal. After three months, the patient remains asymptomatic.
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Affiliation(s)
- Pietro Pepe
- Urology Unit - Cannizzaro Hospital, Via Messina 829, Catania, Italy
| | - Ludovica Pepe
- Urology Unit - Cannizzaro Hospital, Via Messina 829, Catania, Italy
| | - Michele Pennisi
- Urology Unit - Cannizzaro Hospital, Via Messina 829, Catania, Italy
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Sakamoto S. Editorial Comment from Dr Sakamoto to Solitary recurrence of prostate cancer surrounded by seminal vesicle/vas deferens-like epithelium. IJU Case Rep 2020; 3:174. [PMID: 32914065 PMCID: PMC7469788 DOI: 10.1002/iju5.12177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Shinichi Sakamoto
- Department of UrologyChiba University Graduate School of MedicineChibaJapan
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Sanguedolce F, Russo D, Mancini V, Selvaggio O, Calò B, Carrieri G, Cormio L. Morphological and Immunohistochemical Biomarkers in Distinguishing Prostate Carcinoma and Urothelial Carcinoma: A Comprehensive Review. Int J Surg Pathol 2018; 27:120-133. [DOI: 10.1177/1066896918814198] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The differential diagnosis between high-grade prostate carcinoma and infiltrating urothelial carcinoma (UC) in transurethral resection prostate specimens as well as cystoprostatectomy specimens may often be challenging due to morphologic and clinical overlap of the 2 entities. Such distinction has critical therapeutic and staging consequences, yet it is hampered by both issues in morphology and by the low accuracy rates of single immunohistochemical markers, as reported in literature. This review aims to provide a comprehensive analysis of the available morphological and immunohistochemical parameters, which may allow to discriminate between prostate carcinoma and urothelial carcinoma in the proper clinical context and to discuss their diagnostic applications in daily practice.
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Somwaru AS, Alex D, Zaheer A. Prostate cancer arising in ectopic prostatic tissue within the left seminal vesicle: a rare case diagnosed with multi-parametric magnetic resonance imaging and magnetic resonance imaging-transrectal ultrasound fusion biopsy. BMC Med Imaging 2016; 16:16. [PMID: 26905875 PMCID: PMC4765124 DOI: 10.1186/s12880-016-0122-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 02/17/2016] [Indexed: 11/24/2022] Open
Abstract
Background Benign ectopia of prostatic glandular tissue in the seminal vesicles is rare with only three prior cases reported in the literature. Prostate cancer, arising within prostatic ectopia in the seminal vesicles, has never been described and therefore presents a challenge in both diagnosis and management. Case presentation Herein, we report a rare case of prostatic adenocarcinoma in ectopic prostate tissue in the left seminal vesicle, without evidence of prostatic glandular involvement. This case was diagnosed on multi-parametric magnetic resonance imaging and confirmed with magnetic resonance imaging-transrectal ultrasound fusion biopsy. Conclusions Awareness of this unusual phenomenon is significant because of the potential occurrence of malignancy to arise in unexpected, extra-glandular locations, which are not routinely sampled on routine transrectal ultrasound biopsy. However attention to lesions with characteristic multi-parametric magnetic resonance imaging features of prostate cancer, regardless of extra-glandular location, will help direct tissue sampling, facilitate a timely diagnosis and ensure appropriate management.
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Affiliation(s)
- Alexander S Somwaru
- Department of Radiology, CCC Building, MedStar Georgetown University Hospital, 3800 Reservoir Road, N.W., Washington, DC, 20007, USA.
| | - Deepu Alex
- Department of Pathology and Laboratory Medicine, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Atif Zaheer
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD, USA
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