Micropenis Eau Guidelines 2013

MICROPENIS EAU GUIDELINES 2013 Classification Micropenis is a small but otherwise normally formed penis with a stretched length of less than 2.5 SD below the mean .Besides an idiopathic micropenis, two major causes of abnormal hormonal stimulation have been identified: • Hypogonadotropic hypogonadism (due to an inadequate secretion of GnRH). • Hypergonadotropic hypogonadism (due to failure of the testes to produce testosterone). Diagnosis The penis is measured on the dorsal aspect, while stretching the penis, from the pubic symphysis to the tip of the glans The corpora cavernosa are palpated, the scrotum is often small, and the testes may be small and descended. Micropenis should be distinguished from buried and webbed penis, which is usually of normal size. The initial evaluation has to define whether the aetiology of the micropenis is central (hypothalamic/pituitary) or testicular. A paediatric endocrinology work-up has to be carried out immediately. Karyotyping is mandatory in all patients with a micropenis. Endocrine testicular function is assessed (baseline and stimulated testosterone, LH and FSH serum levels). Stimulated hormone levels may also give an idea of the growth potential of the penis. In patients with non-palpable testes and hypogonadotropic hypogonadism, laparoscopy should be carried out to confirm vanishing testes syndrome or intra-abdominal undescended hypoplastic testes. This investigation can be delayed until the age of 1 year Treatment Pituitary or testicular insufficiency are treated by the paediatric endocrinologist. In patients with testicular failure and proven androgen sensitivity, androgen therapy is recommended during childhood and at puberty to stimulate the growth of the penis. In the presence of androgen insensitivity, good outcome of sexual function is questioned and gender conversion can be considered . .

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Case Report Full text online at http://www.jiaps.com Penile agenesis A. K. Bangroo, Ramji Khetri, Sashi Tiwari St Stephen's Hospital, Tis Hazari, Delhi Correspondence: AK Bangroo, 103, Administrative block, St. Stephens Hospital, Tis Hazari, Delhi-110054, India. E-mail: [email protected] ABSTRACT Penile agenesis is an extremely rare disorder with profound urological and psychological consequences. The goal of treatment is an early female gender assignment and feminizing reconstruction of the perineum. KEY WORDS: Aphallia, Penile agenesis, Ambiguous genitalia Penile agenesis (PA) is an extremely rare developmental the scrotal folds which were preserved for subsequent anomaly with the reported incidence of 1 in 30 million genital reconstruction. births[1]. PA is believed to result from either the absence of the genital tubercle, or its failure to develop.[2] Several DISCUSSION investigators claim the absence of corpora cavernosa and corpora spongiosum as a prerequisite for the diagnosis of The earliest case report of aphallia was by Imminger in penile agenesis.[3] Except for the reported XX-XY mosaic, 1853[2] since then only 75 cases have been reported in the patients have 46 XY karyotypes.[4] More than half of these literature[6]. Skoog and Belman[5] suggested three variants, have associated anomalies, including developmental de based on urethral position in relationship to the anal fects of the caudal axis, genitourinary and gastrointestinal sphincter, as: Postsphincteric; Presphincteric tract anomalies.[5] The scrotum, testes and testicular func (Prostatorectal fistula) and Urethral atresia. More proxi tion are usually normal[2]. mal the bladder outlet, greater is the likelihood of other anomalies and death.[5] CASE REPORT A two-day-old 3.2 kg genotypic male (46XY) neonate was brought, by a social organization, to our hospital with the complaint of absence of penis, and passage of meco nium mixed with urine through rectum.
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Growth Hormone Deficiency Causing Micropenis:Peter A. Lee, MD, PhD, a Tom Mazur, PsyD, Lessons b Christopher P. Houk, MD, Learned c Robert M. Blizzard, MD d From a Well-Adjusted Adultabstract This report of a 46, XY patient born with a micropenis consistent with etiology from isolated congenital growth hormone deficiency is used to (1) raise the question regarding what degree testicular testosterone exposure aDepartment of Pediatrics, College of Medicine, Penn State to the central nervous system during fetal life and early infancy has on the University, Hershey, Pennsylvania; bCenter for Psychosexual development of male gender identity, regardless of gender of rearing; (2) Health, Jacobs School of Medicine and Biomedical suggest the obligatory nature of timely full disclosure of medical history; Sciences, University at Buffalo and John R. Oishei Children’s Hospital, Buffalo, New York; cDepartment of (3) emphasize that virtually all 46, XY infants with functional testes and Pediatrics, Medical College of Georgia, Augusta University, a micropenis should be initially boys except some with partial androgen Augusta, Georgia; and dDepartment of Pediatrics, College of Medicine, University of Virginia, Charlottesville, Virginia insensitivity syndrome; and (4) highlight the sustaining value of a positive long-term relationship with a trusted physician (R.M.B.). When this infant Dr Lee reviewed and discussed the extensive medical records with Dr Blizzard, reviewed presented, it was commonly considered inappropriate to gender assign an pertinent medical literature, and wrote each draft infant male whose penis was so small that an adult size was expected to be of the manuscript with input from all coauthors; inadequate, even if the karyotype was 46, XY, and testes were functional.
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Arch Dis Child: first published as 10.1136/adc.50.3.247 on 1 March 1975. Downloaded from Short reports 247 REFERENCES Patients Barnes, N. D., Joseph, J. M., Atherden, S. M. and Clayton, B. E. (1972). Functional tests of adrenal axis in children with Case 1. The second child of unrelated parents, born measurement of plasma cortisol by competitive protein binding. after a normal term pregnancy. At birth it was difficult Archives of Disease in Childhood, 47, 66. to decide the infant's sex. A minute penis consisting of Deane, H. W., and Masson, G. M. C. (1951). Adrenal cortical a small prepuce-like skin tag devoid of palpable erectile changes in rats with various types of experimental hypertension. .ournal of Clinical Endocrinology, 11, 193. tissue was present (Fig. 1). The urethral orifice could Fanconi, G. (1954). Tubular insufficiency and renal dwarfism. not be seen but urine was passed from this area. Testes Archives of Disease in Childhood, 29, 1. could not be felt in the small, fleshy scrotum. Physical Howse, P. M., Rayner, P. H. W., Williams, J. W., and Rudd, B. T. (1974). Growth hormone secretion during sleep in short examination was otherwise normal. children: a continuous sampling study. Archives of Disease in Childhood, 49, 246. James, V. H. T., Townsend, J., and Fraser, R. (1967). Comparison of fluorimetric and isotopic procedures for the determination of plasma cortisol. journal of Endocrinology, 37, xxviii. Mattingly, D. (1962). A simple fluorimetric method for the estimation of free 1 1-hydroxycorticoids in human plasma. Journal of Clinical Pathology, 15, 374.
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