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      Gastric Adenocarcinoma with Prostatic Metastasis

      case-report

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          Abstract

          Metastasis of gastric adenocarcinoma to the prostate gland is extremely rare. Herein, we report a case of gastric adenocarcinoma in a 56-year-old man with prostatic metastasis diagnosed through the analysis of biopsy specimens from representative lesions in the stomach and prostate gland. Immunohistochemistry of the prostatic tissue showed positive staining for cytokeratin 7 and negative staining for prostate-specific antigen (PSA), whereas the serum PSA level was normal, confirming the diagnosis of prostatic metastasis from carcinoma of the stomach.

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          Most cited references4

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          Secondary solid neoplasms of the prostate: a clinico-pathological series of 51 cases.

          The incidence, presentation, and macroscopic and histological features of secondary solid neoplasms of the prostate gland are described with reference to their differential diagnoses. A continuous series of autopsy and surgical cases from the Royal London Hospital from 1907 to the present yielded a total of 51 secondary neoplasms involving the prostate: 24 at post-mortem examination and 27 surgical specimens. The histology of these specimens was re-examined. In 34 cases, tumour reached the prostate by direct spread: 29 from the bladder and 5 from the rectum. The most common primary sites of metastases to the prostate were lung (eight cases) and pancreas (two cases). There were isolated examples of metastases from the bladder, rectum, skin (malignant melanoma), breast, eye (malignant melanoma), adrenal cortex and gallbladder. Secondary neoplasms represented 2.1% of all neoplasms in surgical specimens, a similar proportion of the total number of malignant solid neoplasms as secondary tumours at other sites in the genitourinary tract. The patients were usually symptomatic, presenting with prostatism, haematuria or pelvic pain, almost always in those with widely disseminated disease.
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            PSA and PAP as immunohistochemical markers in prostate cancer.

            This article describes the immunoreactivity of PSA and PAP in non-neoplastic and neoplastic prostate tissue. Listed are examples of cross reactivity of PSA and PAP in non-neoplastic and neoplastic tissue from other organs. The use of PSA and PAP to identify tumors of prostatic origin in different sites is also described. Finally, the diagnostic uses of immunohistochemistry for PSA and PAP in prostate biopsies and for prognostication are discussed.
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              Case report: gastric adenocarcinoma metastatic to the prostate gland.

              Metastasis to the prostate gland from gastric cancer is exceedingly rare. We have presented a rare case of gastric malignancy metastasizing to the prostate diagnosed by transrectal ultrasound guided prostate biopsy.
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                Author and article information

                Journal
                J Gastric Cancer
                J Gastric Cancer
                JGC
                Journal of Gastric Cancer
                The Korean Gastric Cancer Association
                2093-582X
                2093-5641
                June 2014
                30 June 2014
                : 14
                : 2
                : 135-137
                Affiliations
                Department of Radiation Oncology, Regional Cancer Centre, Thiruvananthapuram, India.
                [1 ]Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, India.
                [2 ]Department of Pathology, Regional Cancer Centre, Thiruvananthapuram, India.
                [3 ]Department of Surgical Oncology, Regional Cancer Centre, Thiruvananthapuram, India.
                Author notes
                Correspondence to: Anoop TM. Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram 695011, Kerala, India. Tel: +91-09447134973, Fax: +91-471-2447454, dranooptm@ 123456yahoo.co.in
                Article
                10.5230/jgc.2014.14.2.135
                4105379
                25061542
                58243dc3-afce-4b11-aeba-aa7bd58984af
                Copyright © 2014 by The Korean Gastric Cancer Association

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 22 February 2014
                : 04 April 2014
                : 04 April 2014
                Categories
                Case Report

                Oncology & Radiotherapy
                stomach neoplasms,adenocarcinoma,prostatic secondaries
                Oncology & Radiotherapy
                stomach neoplasms, adenocarcinoma, prostatic secondaries

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