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Truscott L, Gell J, Chang VY, Lee H, Strom SP, Pillai R, Sisk A, Martinez-Agosto JA, Anderson M, Federman N. Novel association of familial testicular germ cell tumor and autosomal dominant polycystic kidney disease with PKD1 mutation. Pediatr Blood Cancer 2017; 64:100-102. [PMID: 27577987 PMCID: PMC5937546 DOI: 10.1002/pbc.26197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/13/2016] [Accepted: 07/01/2016] [Indexed: 11/07/2022]
Abstract
Adolescent brothers were diagnosed with testicular germ cell tumors within the same month. Both were found to have multiple renal cysts on pretreatment imaging done for staging. The proband, his brother, and their mother, were all found to have a novel splice variant in intron 8 of the PKD1 gene by clinical exome sequencing. This is the second family reported with both familial testicular germ cell tumor (FTGCT) and autosomal dominant polycystic kidney disease (ADPKD), and the first described association of FTGCT with a splice variant in PKD1. We suggest that this novel variant in PKD1 may convey increased risk for FTGCT in addition to causing ADPKD.
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Affiliation(s)
- L Truscott
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles
| | - J Gell
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles
| | - VY Chang
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles,UCLA Jonsson Comprehensive Cancer Center, University of California, Los Angeles
| | - H Lee
- UCLA Clinical Genomics Center, University of California, Los Angeles,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - SP Strom
- UCLA Clinical Genomics Center, University of California, Los Angeles,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - R Pillai
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles
| | - A Sisk
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles
| | - JA Martinez-Agosto
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles,UCLA Clinical Genomics Center, University of California, Los Angeles,UCLA Jonsson Comprehensive Cancer Center, University of California, Los Angeles,Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles
| | - M Anderson
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles
| | - N Federman
- Department of Pediatrics, Mattel Children’s Hospital at UCLA, David Geffen School of Medicine, University of California, Los Angeles,UCLA Jonsson Comprehensive Cancer Center, University of California, Los Angeles,Department of Orthopaedics, David Geffen School of Medicine, University of California, Los Angeles,Correspondent Information: Noah Federman, M.D., Dept. of Pediatrics, David Geffen School of Medicine at UCLA, 10833 Le Conte Avenue, A2-410 MDCC, MC 175217 Los Angeles, CA 90095-1752, Telephone 310 825 6708, Fax: 310 825 3706,
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Guindalini RSC, de Oliveira EP, Silvino MCM, Hoff PM, Garicochea B. Should extragonadal germ cell tumors be included in studies of families with testicular germ cell tumors? Hered Cancer Clin Pract 2013; 11:1. [PMID: 23510634 PMCID: PMC3599932 DOI: 10.1186/1897-4287-11-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 02/25/2013] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Family history is among the few established risk factors for testicular germ cell tumor (TGCT). Approximately 1.4% of newly diagnosed TGCT patients report a positive family history of TGCT. Sons and siblings of TGCT patients have four- to six fold and eight- to tenfold increase in TGCT risk, respectively. In twins of men with TGCT the relative risk of testicular cancer is 37.5 (12.3-115.6). Nevertheless, information about the occurrence of TGCT in relatives of patients with extragonadal germ cell tumor is limited. CASE REPORT A 24 year-old male patient was diagnosed with a mediastinum tumor and was submitted to image-guided biopsy, which revealed a seminoma. Two months later, his non-identical asymptomatic twin brother was submitted to an elective ultrasound of the testes, which showed a left testicular mass of 4.2 cm. This patient underwent orchiectomy revealing a seminoma of the left testis. There are no other cases of seminoma or other types of cancers reported in first-degree relatives in this family. CONCLUSIONS Although familial aggregations of TGCT have been well described, to the best of our knowledge, no data concerning the association of gonadal and extragonadal germ cell tumor in relatives has been previously reported. Further investigation on this association is warranted and may help in improving our knowledge of familial pattern inheritance.
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Affiliation(s)
- Rodrigo Santa Cruz Guindalini
- Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo 251, São Paulo ZIP 01246-000, Brazil
| | | | - Marina Cavalcanto Moroja Silvino
- Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo 251, São Paulo ZIP 01246-000, Brazil
| | - Paulo Marcelo Hoff
- Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo 251, São Paulo ZIP 01246-000, Brazil
- Centro de Oncologia, Hospital Sírio Libanês, São Paulo, Brazil
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