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https://www.readbyqxmd.com/read/28207417/adrenarche-unmasks-compound-heterozygous-3%C3%AE-hydroxysteroid-dehydrogenase-deficiency-c-244g-a-p-ala82thr-and-the-novel-931c-t-p-gln311-variant-in-a-non-salt-wasting-severely-undervirilised-46xy
#1
Stephanie Louise Teasdale, Adam Morton
3β-Hydroxysteroid dehydrogenase type II deficiency (3βHSD2) congenital adrenal hyperplasia is a rare cause of ambiguous genitalia, resulting in abnormal virilisation in both 46XY and 46XX. We describe a case of 46XY ambiguous genitalia that was misdiagnosed as androgen insensitivity syndrome. The correct diagnosis was made after adrenarche. Genotyping demonstrated compound heterozygosity in two alleles, the previously described c.244G>A (p.Ala82Thr), and a novel 931C>T(p.Gln311*) variant. We suggest that adrenarche unmasked the condition by driving cortisol production to rates that caused the mutant 3bHSD2 enzyme to become rate limiting for cortisol production...
February 16, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28149309/deferring-surgical-treatment-of-ambiguous-genitalia-into-adolescence-in-girls-with-21-hydroxylase-deficiency-a-feasibility-study
#2
Pierre Bougnères, Claire Bouvattier, Maryse Cartigny, Lina Michala
BACKGROUND: Genital surgery in Disorders of Sex Development (DSD) has been an area of debate over the past 20 years. Emerging scientific evidence in the late 1990s defied the then routine practice to surgically align genitalia to the sex of rearing, as early as possible. However, despite multitude of data showing detrimental effects to genital sensation and sexuality, few patients born with ambiguous genitalia have remained unoperated into adolescence. METHODS: We followed up girls with 21 hydroxylase deficiency (21- OHD) in genital morphology during childhood and acceptability among patients and parents of such an approach...
2017: International Journal of Pediatric Endocrinology
https://www.readbyqxmd.com/read/28092684/biallelic-mutations-in-the-3-exonuclease-toe1-cause-pontocerebellar-hypoplasia-and-uncover-a-role-in-snrna-processing
#3
Rea M Lardelli, Ashleigh E Schaffer, Veerle R C Eggens, Maha S Zaki, Stephanie Grainger, Shashank Sathe, Eric L Van Nostrand, Zinayida Schlachetzki, Basak Rosti, Naiara Akizu, Eric Scott, Jennifer L Silhavy, Laura Dean Heckman, Rasim Ozgur Rosti, Esra Dikoglu, Anne Gregor, Alicia Guemez-Gamboa, Damir Musaev, Rohit Mande, Ari Widjaja, Tim L Shaw, Sebastian Markmiller, Isaac Marin-Valencia, Justin H Davies, Linda de Meirleir, Hulya Kayserili, Umut Altunoglu, Mary Louise Freckmann, Linda Warwick, David Chitayat, Susan Blaser, Ahmet Okay Çağlayan, Kaya Bilguvar, Huseyin Per, Christina Fagerberg, Henrik T Christesen, Maria Kibaek, Kimberly A Aldinger, David Manchester, Naomichi Matsumoto, Kazuhiro Muramatsu, Hirotomo Saitsu, Masaaki Shiina, Kazuhiro Ogata, Nicola Foulds, William B Dobyns, Neil C Chi, David Traver, Luigina Spaccini, Stefania Maria Bova, Stacey B Gabriel, Murat Gunel, Enza Maria Valente, Marie-Cecile Nassogne, Eric J Bennett, Gene W Yeo, Frank Baas, Jens Lykke-Andersen, Joseph G Gleeson
Deadenylases are best known for degrading the poly(A) tail during mRNA decay. The deadenylase family has expanded throughout evolution and, in mammals, consists of 12 Mg(2+)-dependent 3'-end RNases with substrate specificity that is mostly unknown. Pontocerebellar hypoplasia type 7 (PCH7) is a unique recessive syndrome characterized by neurodegeneration and ambiguous genitalia. We studied 12 human families with PCH7, uncovering biallelic, loss-of-function mutations in TOE1, which encodes an unconventional deadenylase...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28018429/408-cases-of-genital-ambiguity-followed-by-single-multidisciplinary-team-during-23-years-etiologic-diagnosis-and-sex-of-rearing
#4
Georgette Beatriz De Paula, Beatriz Amstalden Barros, Stela Carpini, Bruna Jordan Tincani, Tais Nitsch Mazzola, Mara Sanches Guaragna, Cristiane Santos da Cruz Piveta, Laurione Candido de Oliveira, Juliana Gabriel Ribeiro Andrade, Guilherme Guaragna-Filho, Pedro Perez Barbieri, Nathalia Montibeler Ferreira, Marcio Lopes Miranda, Ezequiel Moreira Gonçalves, Andre Moreno Morcillo, Nilma Lucia Viguetti-Campos, Sofia Helena Valente Lemos-Marini, Roberto Benedito de Paiva Silva, Antonia Paula Marques-de-Faria, Maricilda Palandi De Mello, Andrea Trevas Maciel-Guerra, Gil Guerra-Junior
Objective. To evaluate diagnosis, age of referral, karyotype, and sex of rearing of cases with disorders of sex development (DSD) with ambiguous genitalia. Methods. Retrospective study during 23 years at outpatient clinic of a referral center. Results. There were 408 cases; 250 (61.3%) were 46,XY and 124 (30.4%) 46,XX and 34 (8.3%) had sex chromosomes abnormalities. 189 (46.3%) had 46,XY testicular DSD, 105 (25.7%) 46,XX ovarian DSD, 95 (23.3%) disorders of gonadal development (DGD), and 19 (4.7%) complex malformations...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27998648/russell-silver-syndrome-presenting-with-ambiguous-genitalia
#5
I-Fan Chang, Yin-Hsiu Chien, Wen-Yu Tsai, Ni-Chung Lee
No abstract text is available yet for this article.
December 17, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27990598/disorders-of-sex-development-dsd-not-only-babies-with-ambiguous-genitalia-a-practical-guide-for-surgeons
#6
Irene Kearsey, John M Hutson
INTRODUCTION AND METHODS: In this review, we describe the common clinical scenarios that may be present to a paediatric surgeon when a patient has a disorder of sex development (DSD). Our aim was to prepare surgeons so that they can respond with correct approaches to diagnose and manage the given situations. RESULTS: DSD present in three distinct clinical situations: in the neonate with some abnormality of the external genitalia; in the child undergoing surgical treatment for inguinal hernia or during open or laparoscopic orchidopexy or during hypospadias correction; and at or after puberty, which may be precocious or delayed or in an adolescent girl with masculinisation at puberty...
December 18, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27960567/prenatal-diagnosis-of-isolated-foetal-hydrocolpos-secondary-to-congenital-imperforate-hymen-mimicking-ambiguous-genitalia
#7
Ebru Alici Davutoglu, Mehmet Aytac Yuksel, Aslıhan Yurtkal, Ilkbal Temel Yuksel, Ibrah M Adaletli, Riza Madazli
No abstract text is available yet for this article.
December 14, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27941186/mixed-gonadal-dysgenesis-with-an-unusual-inverted-y-chromosome
#8
Deepa Makhija, Hemanshi Shah, Charu Tiwari, Shalika Jayaswal, Jayesh Desale
Mixed gonadal dysgenesis is a rare disorder of sex development associated with sex chromosome aneuploidy and mosaicism of the Y chromosome. It is characterized by a unilateral non-palpable (usually intra-abdominal) testis, a contralateral streak gonad and persistent mullerian structures. The clinical presentation can vary from a typical male to female phenotype including all degrees of cryptorchidism, labial fusion, clitoromegaly, epispadias and hypospadias. It is the second most common cause of ambiguous genitalia in the neonatal period...
2016: Developmental Period Medicine
https://www.readbyqxmd.com/read/27928728/clinical-perspectives-in-congenital-adrenal-hyperplasia-due-to-11%C3%AE-hydroxylase-deficiency
#9
REVIEW
Krupali Bulsari, Henrik Falhammar
Congenital adrenal hyperplasia due to 11 beta-hydroxylase deficiency is a rare autosomal recessive genetic disorder. It is caused by reduced or absent activity of 11β-hydroxylase (CYP11B1) enzyme and the resultant defects in adrenal steroidogenesis. The most common clinical features of 11 beta-hydroxylase deficiency are ambiguous genitalia, accelerated skeletal maturation and resultant short stature, peripheral precocious puberty and hyporeninemic hypokalemic hypertension. The biochemical diagnosis is based on raised serum 11-deoxycortisol and 11-deoxycorticosterone levels together with increased adrenal androgens...
January 2017: Endocrine
https://www.readbyqxmd.com/read/27899089/familial-forms-of-disorders-of-sex-development-may-be-common-if-infertility-is-considered-a-comorbidity
#10
Raja Brauner, Flavia Picard-Dieval, Henri Lottmann, Sébastien Rouget, Joelle Bignon-Topalovic, Anu Bashamboo, Ken McElreavey
BACKGROUND: Families with 46,XY Disorders of Sex Development (DSD) have been reported, but they are considered to be exceptionally rare, with the exception of the familial forms of disorders affecting androgen synthesis or action. The families of some patients with anorchia may include individuals with 46,XY gonadal dysgenesis. We therefore analysed a large series of patients with 46,XY DSD or anorchia for the occurrence in their family of one of these phenotypes and/or ovarian insufficiency and/or infertility and/or cryptorchidism...
November 29, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27887913/prospective-assessment-of-cosmesis-before-and-after-genital-surgery
#11
N J Nokoff, B Palmer, A J Mullins, C E Aston, P Austin, L Baskin, K Bernabé, Y-M Chan, E Y Cheng, D A Diamond, A Fried, D Frimberger, D Galan, L Gonzalez, S Greenfield, T Kolon, B Kropp, Y Lakshmanan, S Meyer, T Meyer, L L Mullins, A Paradis, D Poppas, P Reddy, M Schulte, K J Scott Reyes, J M Swartz, C Wolfe-Christensen, E Yerkes, A B Wisniewski
INTRODUCTION: Little data exist about the surgical interventions taking place for children with disorders of sex development (DSD). Most studies that have evaluated cosmetic outcomes after genitoplasty have included retrospective ratings by a physician at a single center. OBJECTIVE: The present study aimed to: 1) describe frequency of sex assignment, and types of surgery performed in a cohort of patients with moderate-to-severe genital ambiguity; and 2) prospectively determine cosmesis ratings by parents and surgeons before and after genital surgery...
October 8, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27867895/gender-of-rearing-and-psychosocial-aspect-in-46-xx-congenital-adrenal-hyperplasia
#12
Arushi Gangaher, Viveka P Jyotsna, Vasundhera Chauhan, Jomimol John, Manju Mehta
BACKGROUND: In congenital adrenal hyperplasia (CAH) with ambiguous genitalia, assigning gender of rearing can be complex, especially If genitalia is highly virilized. Apart from karyotype, prenatal androgen exposure, patient's gender orientation, sociocultural, and parental influences play a role. The aim of this study was to assess gender dysphoria and psychosocial issues in patients of CAH raised as males and females. MATERIALS AND METHODS: This is a cross-sectional study that includes patients (old and new) with CAH who were treated by us in the last 6 months...
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27857458/magnetic-resonance-neurographic-confirmation-of-extensive-plexiform-neurofibroma-in-neurofibromatosis-1-presenting-as-ambiguous-genitalia
#13
Ishan Kumar, Ashish Verma, Ritu Ojha, Priyanka Aggarwal, Ram C Shukla, Arvind Srivastava
Genitourinary involvement of neurofibromatosis is uncommon and genital neurofibromatosis is even rarer. Involvement of clitoris by neurofibroma can lead to clitoromegaly masquerading as a male penis. We report such a case of ambiguous genitalia in a 7-year-old female child presenting with clitoromegaly since birth, in which magnetic resonance imaging (MRI) revealed the presence of extensive neurofibromatosis in the clitoris and lumbosacral regions. We emphasize the central role of MRI in evaluation of hormonal and non-hormonal causes of ambiguous genitalia...
July 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/27821748/spatiotemporal-dynamics-of-androgen-signaling-underlie-sexual-differentiation-and-congenital-malformations-of-the-urethra-and-vagina
#14
Christine E Larkins, Ana B Enriquez, Martin J Cohn
Disorders of sex development (DSDs) are congenital anomalies that affect sexual differentiation of genitourinary organs and secondary sex characters. A common cause of female genital virilization is congenital adrenal hyperplasia (CAH), in which excess androgen production during development of 46XX females can result in vaginal atresia, masculinization of the urethra, a single urogenital sinus, and clitoral hypertrophy or ambiguous external genitalia. Development of the vagina depends on sexual differentiation of the urogenital sinus ridge, an epithelial thickening that forms where the sex ducts attach to the anterior urethra...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27806792/-analysis-of-clinical-features-and-related-genes-variation-in-five-patients-with-46-xx-male-syndrome
#15
X Y Qin, W K Dong, W Wang, Z Y Dong, Y Xiao, W L Lu, D F Wang
Objective: To explore the clinical manifestations and molecular features of 46, XX male syndrome. Method: The clinical and molecular data of five 46, XX male syndrome cases treated in the Department of Pediatrics of Shanghai Ruijin Hospital form August 2010 to August 2014 were retrospectively analyzed. Result: The five patients were all sociopsychologically males and came to hospital respectively for short stature, ambiguous genitalia or gynecomastia. They were all below the normal male's average height, and their karyotype was all 46, XX...
November 2, 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/27799946/anti-m%C3%A3-llerian-hormone-as-a-marker-of-steroid-and-gonadotropin-action-in-the-testis-of-children-and-adolescents-with-disorders-of-the-gonadal-axis
#16
REVIEW
Nadia Y Edelsztein, Romina P Grinspon, Helena F Schteingart, Rodolfo A Rey
In pediatric patients, basal testosterone and gonadotropin levels may be uninformative in the assessment of testicular function. Measurement of serum anti-Müllerian hormone (AMH) has become increasingly widespread since it provides information about the activity of the male gonad without the need for dynamic tests, and also reflects the action of FSH and androgens within the testis. AMH is secreted in high amounts by Sertoli cells from fetal life until the onset of puberty. Basal AMH expression is not dependent on gonadotropins or sex steroids; however, FSH further increases and testosterone inhibits AMH production...
2016: International Journal of Pediatric Endocrinology
https://www.readbyqxmd.com/read/27777794/molecular-analysis-of-cyp21a2-gene-mutations-among-iraqi-patients-with-congenital-adrenal-hyperplasia
#17
Ruqayah G Y Al-Obaidi, Bassam M S Al-Musawi, Munib Ahmed K Al-Zubaidi, Christian Oberkanins, Stefan Németh, Yusra G Y Al-Obaidi
Congenital adrenal hyperplasia is a group of autosomal recessive disorders. The most frequent one is 21-hydroxylase deficiency. Analyzing CYP21A2 gene mutations was so far not reported in Iraq. This work aims to analyze the spectrum and frequency of CYP21A2 mutations among Iraqi CAH patients. Sixty-two children were recruited from the Pediatric Endocrine Consultation Clinic, Children Welfare Teaching Hospital, Baghdad, Iraq, from September 2014 till June 2015. Their ages ranged between one day and 15 years...
2016: Enzyme Research
https://www.readbyqxmd.com/read/27660460/the-increasing-prevalence-in-intersex-variation-from-toxicological-dysregulation-in-fetal-reproductive-tissue-differentiation-and-development-by-endocrine-disrupting-chemicals
#18
REVIEW
Alisa L Rich, Laura M Phipps, Sweta Tiwari, Hemanth Rudraraju, Philip O Dokpesi
An increasing number of children are born with intersex variation (IV; ambiguous genitalia/hermaphrodite, pseudohermaphroditism, etc.). Evidence shows that endocrine-disrupting chemicals (EDCs) in the environment can cause reproductive variation through dysregulation of normal reproductive tissue differentiation, growth, and maturation if the fetus is exposed to EDCs during critical developmental times in utero. Animal studies support fish and reptile embryos exhibited IV and sex reversal when exposed to EDCs...
2016: Environmental Health Insights
https://www.readbyqxmd.com/read/27617556/male-pseudohermaphroditism-ambiguous-genitalia
#19
C R Bonarriba Beltrán, L Fernández, D Alonso, F García-Montes
No abstract text is available yet for this article.
September 2016: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/27590395/rodriguez-lethal-acrofacial-dysostosis-syndrome-with-ambiguous-genitalia
#20
Ulku Mete Ural, Serdar Ceylaner
No abstract text is available yet for this article.
August 2016: Taiwanese Journal of Obstetrics & Gynecology
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