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Muramoto A, Inamura S, Hoshino H, Terada N, Kobayashi M. Paradoxical Expression of R-10G-reactive Antigen in Human Testicular Embryonal Carcinoma. J Histochem Cytochem 2023; 71:555-563. [PMID: 37675782 PMCID: PMC10546982 DOI: 10.1369/00221554231199134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 08/10/2023] [Indexed: 09/08/2023] Open
Abstract
Thus far, several monoclonal antibodies directed against cell-surface carbohydrate antigens have been generated. Among them, R-10G reportedly reacts selectively with human embryonic stem and induced pluripotent stem cells, but not with embryonal carcinoma (EC) cells. However, EC cells derived from patients' EC tumors may exhibit varying levels of R-10G-reactive antigen expression. Thus, we asked whether human EC tissues or germ cell tumor (GCT) tissues other than EC express R-10G-reactive antigen. To do so, we quantitatively analyzed R-10G-reactive antigen expression in 83 testicular GCT surgical specimens containing a total of 125 various GCT components. Accordingly, in all EC components examined, the EC cell plasma membrane was immunolabeled with R-10G, while most seminoma components were R-10G-negative. In non-seminomatous GCT (NSGCT) other than EC (non-EC NSGCT), R-10G-reactive antigen expression was variable, but signal distribution was focal, and the average intensity was weaker than that seen in EC. The percentages of R-10G-positive cells in these three groups varied with high statistical significance (p<0.001 for all combinations). These findings indicate that the R-10G-reactive antigen is preferentially expressed in human testicular EC tissues and, thus, could be used as a diagnostic marker for this malignancy.
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Affiliation(s)
- Akifumi Muramoto
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan
| | - So Inamura
- Department of Tumor Pathology
- Department of Urology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan
| | - Hitomi Hoshino
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan
| | - Naoki Terada
- Department of Urology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan
| | - Motohiro Kobayashi
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, Eiheiji, Japan
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2
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Lesko P, Chovanec M, Mego M. Biomarkers of disease recurrence in stage I testicular germ cell tumours. Nat Rev Urol 2022; 19:637-658. [PMID: 36028719 DOI: 10.1038/s41585-022-00624-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2022] [Indexed: 11/09/2022]
Abstract
Stage I testicular cancer is a disease restricted to the testicle. After orchiectomy, patients are considered to be without disease; however, the tumour is prone to relapse in ~4-50% of patients. Current predictive markers of relapse, which are tumour size and invasion to rete testis (in seminoma) or lymphovascular invasion (in non-seminoma), have limited clinical utility and are unable to correctly predict relapse in a substantial proportion of patients. Adjuvant therapeutic strategies based on available biomarkers can lead to overtreatment of 50-85% of patients. Discovery and implementation of novel biomarkers into treatment decision making will help to reduce the burden of adjuvant treatments and improve patient selection for adjuvant therapy.
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Affiliation(s)
- Peter Lesko
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Michal Chovanec
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia
| | - Michal Mego
- 2nd Department of Oncology, Faculty of Medicine, Comenius University and National Cancer Institute, Bratislava, Slovakia.
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3
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Jia L, Deng FM, Kong MX, Wu CL, Yang XJ. Common Diagnostic Challenges and Pitfalls in Genitourinary Organs, With Emphasis on Immunohistochemical and Molecular Updates. Arch Pathol Lab Med 2021; 145:1387-1404. [PMID: 34673910 DOI: 10.5858/arpa.2021-0107-ra] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2021] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Lesions in the genitourinary (GU) organs, both benign and malignant, can demonstrate overlapping morphology, and practicing surgical pathologists should be aware of these potential pitfalls and consider a broad differential diagnosis for each specific type of lesion involving the GU organs. The following summary of the contents presented at the 6th Annual Chinese American Pathologists Association (CAPA) Diagnostic Course (October 10-11, 2020), supplemented with relevant literature review, exemplifies the common diagnostic challenges and pitfalls for mass lesions of the GU system of adults, including adrenal gland, with emphasis on immunohistochemical and molecular updates when relevant. OBJECTIVE.— To describe the common mass lesions in the GU system of adults, including adrenal gland, with emphasis on the diagnostic challenges and pitfalls that may arise in the pathologic assessment, and to highlight immunohistochemical workups and emerging molecular findings when relevant. DATA SOURCES.— The contents presented at the course and literature search comprise our data sources. CONCLUSIONS.— The diagnostic challenges and pitfalls that arise in the pathologic assessment of the mass lesions in the GU system of adults, including adrenal gland, are common. We summarize the contents presented at the course, supplemented with relevant literature review, and hope to provide a diagnostic framework to evaluate these lesions in routine clinical practice.
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Affiliation(s)
- Liwei Jia
- From the Department of Pathology, University of Texas Southwestern Medical Center, Dallas (Jia)
| | - Fang-Ming Deng
- the Department of Pathology, New York University Grossman School of Medicine, New York City (Deng)
| | - Max X Kong
- Northern California Kaiser, Kaiser Sacramento Medical Center, Sacramento (Kong)
| | - Chin-Lee Wu
- the Department of Pathology and Urology, Massachusetts General Hospital, Boston (Wu)
| | - Ximing J Yang
- the Department of Pathology, Northwestern University, Chicago, Illinois (Yang)
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Suciu MD, Marica NA, Oniu T, Tomuta AI, Badea R. Embryonal carcinoma of an intraabdominal testicular tumor on an undescended testicle: a case report. Med Pharm Rep 2020; 93:213-218. [PMID: 32478330 PMCID: PMC7243893 DOI: 10.15386/mpr-1293] [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: 01/29/2019] [Revised: 02/14/2020] [Accepted: 03/13/2020] [Indexed: 12/05/2022] Open
Abstract
Cryptorchidism, as a singular pathology or associated with other dysgenesis syndromes, is one of the main factors of risk for the development of the testicular tumors. Although there are a great number of cases of undescended testicles that are diagnosed and treated during the first 6–12 months of life, there are rare cases of adults who are undiagnosed and untreated from this anomaly, which can present a high risk of malignancy. In this study we present the case of a 36-year-old patient, diagnosed at puberty with left cryptorchidism, untreated, who also hadevidenced a large intraabdominal tumoral mass associated with it. The tumoral mass had its origin in the undescended left testicle. Surgical excision of the tumor and retroperitoneal lymphadenectomy was performed. The histological result revealed embryonal carcinoma, without lymphnode metastasis. Adult patients with untreated cryptorchidism should be thoroughly investigated, as they have a high risk of developing testicular cancer.
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Affiliation(s)
- Mihai Domnutiu Suciu
- Institute of Urology and Renal Transplantation, Cluj-Napoca, Romania.,Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Nucu Alexandru Marica
- Institute of Urology and Renal Transplantation, Cluj-Napoca, Romania.,Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | | | - Radu Badea
- Department of Medical Imaging, Iuliu Hatieganu University of Medicine and Pharmacy, "Prof. Dr. Octavian Fodor", Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Romania
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Rezaee ME, Dagrosa LM, Seigne JD, Sverrisson EF. A case of contralateral superficial inguinal recurrence of testicular embryonal carcinoma. Urol Case Rep 2019; 27:101012. [PMID: 31641597 PMCID: PMC6796596 DOI: 10.1016/j.eucr.2019.101012] [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: 07/08/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 11/04/2022] Open
Abstract
Metastatic embyronal carcinoma to the subcutaneous tissues is rare. Prior cases have occurred in the setting of undiagnosed widely metastatic disease. Here we present the first case of metastatic embyronal cancer to the contralateral subcutaneous inguinal region in the absence of any other sites of metastatic disease.
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Affiliation(s)
- Michael E Rezaee
- Section of Urology, Department of Surgery, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
| | - Lawrence M Dagrosa
- Section of Urology, Department of Surgery, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
| | - John D Seigne
- Section of Urology, Department of Surgery, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
| | - Einar F Sverrisson
- Section of Urology, Department of Surgery, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH, 03756, USA
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Xiao GQ, Chow J, Maniar KP, Unger PD. Micropapillary variant of embryonal carcinoma: clinicopathological correlation and histochemical study. Int J Surg Pathol 2013; 21:599-602. [PMID: 23842007 DOI: 10.1177/1066896913494794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Micropapillary pattern of growth (MPG) of carcinoma is a unique morphologic pattern. It is uncommon but a predictor of poor outcome. MPG has not been described in any germ cell tumor, most notably embryonal carcinoma, which may have papillary configuration. In this study, we reviewed 25 primary testicular germ cell tumors (pure or mixed) containing embryonal carcinoma and 2 lymph node metastases with embryonal carcinoma. Five of the 25 primary cases demonstrated MPG. With available clinical information, 3/3 (100%) cases with MPG and 5/12 (42%) cases without MPG showed evidence of metastases. The 2 lymph node metastases contained predominantly MPG. At metastasis, the median tumor size in primary tumors with MPG was significantly smaller than in those without MPG. Reticulum staining was negative in the regions of MPG and positive for other coexisting non-micropapillary growth patterns in all the 6 embryonal carcinomas. In conclusion, we described MPG in embryonal carcinoma. Although limited by the number of cases, our clinicopathological correlation results raised the possible association of the presence of MPG to the high-rate metastasis of embryonal carcinoma, similar to that seen in other carcinomas with MPG. It is therefore of importance to document this variant growth pattern if present in embryonal carcinoma. We also demonstrated that reticulum is a useful negative marker for identification of MPG.
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Ali TZ, Parwani AV. Benign and Malignant Neoplasms of the Testis and Paratesticular Tissue. Surg Pathol Clin 2009; 2:61-159. [PMID: 26838100 DOI: 10.1016/j.path.2008.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Benign and malignant tumors of the testes and paratesticular tissues present an interesting spectrum of diagnostic entities often encountered in routine surgical pathology practice. Germ cell tumors are the most common tumors of the testes and, despite a rising incidence, have excellent prognosis because of their radiosensitivity and/or effective chemotherapeutic agents. The proper classification of these tumors aids in the choice of appropriate treatment options. This article reviews benign and malignant neoplastic entities of the testes and paratesticular tissues and illustrates the classic pathologic characteristics. The differential diagnosis, along with ancillary studies, clinical significance, and presentation are discussed also.
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Affiliation(s)
- Tehmina Z Ali
- Department of Pathology, University of Maryland Medical Center, NBW47, 22 S. Greene Street, Baltimore, MD 21201, USA.
| | - Anil V Parwani
- Pathology Informatics, Shadyside Hospital, University of Pittsburg Medical Center, 5230 Centre Avenue, Suite WG02.10, Pittsburgh, PA 15232, USA
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Bakaris S, Resim S, Tunali N. Testicular mixed germ cell tumor with polyembryoma component in brothers. Pediatr Dev Pathol 2005; 8:92-7. [PMID: 15803215 DOI: 10.1007/s10024-004-2123-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2003] [Accepted: 10/06/2004] [Indexed: 10/26/2022]
Abstract
We report the case of a 17-year-old male with a testicular tumor and high serum levels of alpha-fetoprotein. The patient was treated with surgery followed by combination chemotherapy with bleomycin, etoposide, and cisplatin. Histologic examination showed features of a mixed germ cell tumor composed of mature teratoma, immature teratoma, embryonal carcinoma, yolk sac tumor, and polyembryoma. He is currently well, and his serum levels of alpha-fetoprotein have been normal more than 5 months after treatment. His brother, aged 17 years at the time, had a similar tumor removed from the right testicle 5 years previously.
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Affiliation(s)
- Sevgi Bakaris
- Department of Pathology, Kahramanmaras Sutcuimam University Medical School, 46050 Kahramanmaras, Turkey.
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Poulopoulos AK, Antoniades K, Kiziridou A, Antoniades V. Testicular embryonal carcinoma metastatic to the labial mucosa of the upper lip. Oral Oncol 2001; 37:397-9. [PMID: 11337274 DOI: 10.1016/s1368-8375(00)00104-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
An unusual case of testicular embryonal carcinoma metastatic to the labial mucosa of the upper lip is reported. The clinical features and the management of the metastatic oral lesion are presented. In patients with known systemic malignancy, oral swellings may be an indication of a metastatic deposit.
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Affiliation(s)
- A K Poulopoulos
- Department of Oral Medicine and Pathology, Dental school, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Abstract
Germ cell tumors of the testis are the most frequent testicular neoplasms, with seminoma predominating. The pathologist must be able to discriminate between seminoma and nonseminomatous germ cell tumors as well as sex cord-stromal tumors and metastatic lesions. Appropriate therapy and accurate prognostic information are dependent on the proper classification of testicular neoplasia. Characteristic histologic features, serum markers, and immunohistochemistry are helpful in this regard. Sex cord-stromal tumors comprise a small minority of testicular neoplasms. It remains critically important not to confuse these neoplasms with testicular germ cell or metastatic tumors, and, again, recognition of the characteristic histologic features, immunohistochemical findings, and clinical information is diagnostic. The urologist can provide the pathologist with key clinical information in the attempt to make a correct diagnosis.
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Affiliation(s)
- J C Cheville
- Department of Pathology, Mayo Clinic, Rochester, Minnesota, USA.
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11
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Affiliation(s)
- I Damjanov
- Department of Pathology and Cell Biology, Thomas Jefferson University, Jefferson Medical College, Philadelphia, PA 19107
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12
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Ueda G, Abe Y, Yoshida M, Fujiwara T. Embryonal carcinoma of the ovary: a six-year survival. Int J Gynaecol Obstet 1990; 31:287-92. [PMID: 1690671 DOI: 10.1016/0020-7292(90)91025-l] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report a case of embryonal carcinoma, stage II, arising in the right ovary of an 18-year-old woman. The elevated serum levels of alpha-fetoprotein (AFP) and urinary human chorionic gonadotropin (hCG) rapidly normalized after conservative surgery followed by combination chemotherapy. The tumor was composed of large primitive cells and some multinucleated giant cells. AFP and hCG were demonstrated immunohistochemically in each type of cells. She has been disease-free for 6 years.
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Affiliation(s)
- G Ueda
- Department of Obstetrics and Gynecology, Osaka University Medical School, Japan
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