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Rojas AP, Vo DV, Mwangi L, Rehman S, Peiris AN. Oncologic manifestations of Klinefelter syndrome. Hormones (Athens) 2020; 19:497-504. [PMID: 33000452 DOI: 10.1007/s42000-020-00241-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
Klinefelter syndrome (47,XXY) has a prevalence of approximately 1 in 500 males. It is a condition characterized by an extra X chromosome and is an underdiagnosed clinical entity. Inactivation of genes enables their escape from regulatory mechanisms, which can result in such classic physical manifestations as hypogonadism, gynecomastia, infertility, and various hormonal and physical abnormalities. While the endocrine manifestations of 47,XXY are well-known, the oncologic manifestations have received less attention. An association between cancer and 47,XXY has not as yet been clearly defined, with variability noted in the prevalence of different malignancies in 47,XXY patients. The mechanisms underlying these altered oncologic risks are still under debate. Some of the proposed explanations include hormone imbalance, developmental malfunctions, and failed DNA repair mechanisms. However, the recognition of the oncological associations linked to 47,XXY could be helpful. Screening measures in certain malignancies may enable an earlier diagnosis of 47,XXY and the implementation of more customized care in 47,XXY and the mosaic variants.. The data for this review was compiled from relevant PubMed articles published within the last three decades and organized based on cancer type.
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Affiliation(s)
- Alexsandra P Rojas
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
- , Lubbock, TX, USA.
| | - Diana V Vo
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Lance Mwangi
- School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Shabnam Rehman
- Oncology Division of Internal medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Alan N Peiris
- Clinical Research Institute and Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
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Holst JM, Horváth-Puhó E, Jensen RB, Rix M, Kristensen K, Hertel NT, Dekkers OM, Sørensen HT, Juul A, Jørgensen JOL. Cushing's syndrome in children and adolescents: a Danish nationwide population-based cohort study. Eur J Endocrinol 2017; 176:567-574. [PMID: 28179451 DOI: 10.1530/eje-16-0843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/14/2017] [Accepted: 02/07/2017] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Cushing's syndrome (CS) affects all age groups, but epidemiologic data in young patients are very limited. We therefore examined the incidence, prevalence and hospital morbidity of CS in children and adolescents. DESIGN In a nationwide cohort study, we included all Danish citizens aged 0-20 years from 1977 to 2012. Data were obtained from the Danish National Patient Registry using the International Classification of Diseases (ICD) codes and the Danish Civil Registration System. The diagnosis and treatment were validated by means of individual patient charts. Incidence rate of CS patients aged 0-20 years at diagnosis were computed (standardized to the age and sex distribution of the Danish population). The patients were followed for a maximum of 36 years. Standardized incidence ratios (SIRs) of different hospital-recorded outcomes based on the ICD codes in patients with CS compared to the general population were assessed. RESULTS We identified a total of 40 pediatric patients with CS, yielding an annual incidence of 0.89 cases/106 population (95% confidence interval (CI) = 0.63-1.16). The median age at the time of diagnosis was 13.8 years (interquartile range: 10.5-18.2 years), 58% were female and 70% had adrenocorticotropic hormone-producing pituitary adenomas. During follow-up, CS patients (excluding three malignant cases) were at increased risk of being diagnosed with infections (SIR: 3.24, 95% CI: 1.05-7.54) and infertility (SIR: 4.56, 95% CI: 1.48-10.63). The three patients with an adrenocortical carcinoma died shortly after diagnosis, but mortality was not increased in the remaining patients. CONCLUSIONS CS is rare in the pediatric population. The risk of morbidity related to infections and infertility is elevated and merits further attention.
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Affiliation(s)
| | | | - Rikke Beck Jensen
- Department of Growth and ReproductionRigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Mariane Rix
- Department of PediatricsAalborg University Hospital, Aalborg, Denmark
| | - Kurt Kristensen
- Department of PediatricsAarhus University Hospital, Aarhus, Denmark
| | - Niels Thomas Hertel
- Hans Christian Andersen Children's HospitalOdense University Hospital, Odense, Denmark
| | - Olaf M Dekkers
- Departments of Clinical EpidemiologyAarhus University Hospital, Aarhus, Denmark
| | | | - Anders Juul
- Department of Growth and ReproductionRigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Maqdasy S, Bogenmann L, Batisse-Lignier M, Roche B, Franck F, Desbiez F, Tauveron I. Leydig cell tumor in a patient with 49,XXXXY karyotype: a review of literature. Reprod Biol Endocrinol 2015; 13:72. [PMID: 26160035 PMCID: PMC4496935 DOI: 10.1186/s12958-015-0071-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 06/30/2015] [Indexed: 12/17/2022] Open
Abstract
49,XXXXY pentasomy or Fraccaro's syndrome is the most severe variant of Klinefelter's syndrome (KS) affecting about 1/85000 male births. The classical presentation is the triad: mental retardation, hypergonadotropic hypogonadism and radio ulnar synostosis. Indeed, the reproductive function of Fraccaro's syndrome is distinguished from KS. Besides, Leydig cell tumors are described in cases of KS, but never documented in the Klinefelter variants.We describe a young adult of 22 years old who presented with hyper gonadotropic hypogonadism, delayed puberty and bilateral micro-cryptorchidism. Chromosomal pentasomy was confirmed since infancy. Bilateral orchidectomy revealed a unilateral well-circumscribed Leydig cell tumor associated with bilateral Leydig cell hyperplasia.Inspired from reporting the first case of Leydig cell tumor in a 49,XXXXY patient, we summarize the particularities of testicular function in 49,XXXXY from one side, and the risk and mechanisms of Leydig cell tumorigenesis in Klinefelter variants on the other side. The histological destructions in 49,XXXXY testes and hypogonadism are more profound than in Klinefelter patients, with early Sertoli, Leydig and germ cell destruction. Furthermore, the risk of Leydigioma development in KS and its variants remains a dilemma. We believe that the risk of Leydigioma is much higher in KS than the general population. By contrast, the risk could be lower in the Klinefelter variants with more than 3 supplementary X chromosomes, owing to an earlier and more profound destruction of Leydig cells rendering them irresponsive to chronic Luteinizing hormone (LH) stimulation.
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Affiliation(s)
- Salwan Maqdasy
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
- UMR CNRS 6293, INSERM U1103, Université Clermont-Auvergne, Génétique Reproduction et Développement, BP 10448, 63177, Aubiere, France.
- Service de Médecine Nucléaire, Centre Jean Perrin, 58 rue Montalembert, F-63011, Clermont-Ferrand, France.
| | - Laura Bogenmann
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
| | - Marie Batisse-Lignier
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
- UMR CNRS 6293, INSERM U1103, Université Clermont-Auvergne, Génétique Reproduction et Développement, BP 10448, 63177, Aubiere, France.
| | - Béatrice Roche
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
| | | | - Françoise Desbiez
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
| | - Igor Tauveron
- Service d'endocrinologie, diabétologie et maladies métaboliques, CHU Clermont-Ferrand, F-63003, Clermont-Ferrand, France.
- UMR CNRS 6293, INSERM U1103, Université Clermont-Auvergne, Génétique Reproduction et Développement, BP 10448, 63177, Aubiere, France.
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A patient with ectopic cortisol production derived from malignant testicular masses. ACTA ACUST UNITED AC 2008; 4:695-700. [PMID: 18941436 DOI: 10.1038/ncpendmet0985] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Accepted: 09/03/2008] [Indexed: 11/08/2022]
Abstract
BACKGROUND A 65-year-old man presented to an oncology clinic with bilateral testicular masses, lower extremity edema, and cushingoid appearance. INVESTIGATIONS Measurements of serum cortisol and adrenocorticotropic hormone levels, testicular ultrasound and abdominal CT scans, and review of histopathology to identify the cellular origin of the ectopic cortisol production. DIAGNOSIS Cushing syndrome was diagnosed on the basis of a markedly elevated 24-hour urine free cortisol level and classic cushingoid features. The etiology of Cushing syndrome was determined to be an adrenocortical carcinoma arising from testicular adrenal rest cells. Nevertheless, the possibility of a malignant Leydig cell tumor with ectopic cortisol production could not be excluded. MANAGEMENT Mitotane and metyrapone were used to decrease cortisol production. Excess mineralocorticoid activity was blocked with spironolactone; sodium retention was also managed with sodium restriction and diuretics. Despite initial success with this regimen, the patient died as a result of tumor progression and complications of poorly controlled hypercortisolism.
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Abstract
Testicular tumors associated with Klinefelter's syndrome are rare. We report a benign testicular epidermal cyst that was diagnosed in a patient with Klinefelter's syndrome. The association between testicular tumors and Klinefelter's syndrome, and management of a testicular epidermal cyst are discussed.
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Affiliation(s)
- J Baniel
- Department of Urology, Indiana University Medical Center, Indianapolis
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de Keyzer Y, Lenne F, Massias JF, Vieau D, Luton JP, Kahn A, Bertagna X. Pituitary-like proopiomelanocortin transcripts in human Leydig cell tumors. J Clin Invest 1990; 86:871-7. [PMID: 2394836 PMCID: PMC296805 DOI: 10.1172/jci114787] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Proopiomelanocortin is a polypeptide precursor molecule, the processing of which generates ACTH, beta-endorphin, the beta- and gamma-lipotropins, the joining peptide, and the NH2-terminal fragment. Anterior pituitary corticotrophs are the major site of proopiomelanocortin gene expression in man and the predominant, if not sole source of circulating ACTH. Recent data have established that proopiomelanocortin gene expression also occurs in various normal nonpituitary tissues, one of the best studied being the testis. In this latter organ the dominant gene products are short transcripts of approximately 800 nucleotides, which lack the first two exons of the gene and cannot encode a complete proopiomelanocortin molecule. In this report we show that the mode of proopiomelanocortin gene expression is occasionally modified in human Leydig cell tumors: a 1,200-nucleotide mRNA species identical to that in the pituitary is produced. It results from the usual (pituitary) start site of transcription and thus can encode the complete proopiomelanocortin molecule. In two out of six tumors, large amounts of the 1,200-nucleotide transcript led to a dramatic increase of approximately 1,000-fold in proopiomelanocortin peptide concentrations as compared with the normal and peritumoral testis. Proopiomelanocortin processing in these tumors generates various peptide fragments including ACTH. These results may help to understand the mechanism of proopiomelanocortin expression in nonpituitary tumors and have implications for the more general phenomenon of ectopic hormone secretion.
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Affiliation(s)
- Y de Keyzer
- Centre de Recherche sur les Maladies Endocriniennes, Hôpital Cochin, Paris, France
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Carroll PR, Morse MJ, Koduru PP, Chaganti RS. Testicular germ cell tumor in patient with Klinefelter syndrome. Urology 1988; 31:72-4. [PMID: 3336933 DOI: 10.1016/0090-4295(88)90579-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Although mediastinal germ cell tumors are known to occur with a greater frequency in patients with Klinefelter syndrome, reports of testicular germ cell tumors occurring in such patients are rare. We report a case of a nonseminomatous germ cell tumor in a patient with Klinefelter syndrome and suggest that such an association may occur more frequently than has been reported previously.
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Affiliation(s)
- P R Carroll
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York
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