Malformations of the External Genitalia

2022 ◽  
pp. 223-238
Author(s):  
Mario Zama ◽  
Maria Ida Rizzo ◽  
Martina Corno ◽  
Angelica Pistoia
Keyword(s):  
External Genitalia

Isolated lymphoedema of the external genitalia

1998 ◽  
Vol 1 (1) ◽  
pp. 53-56
Author(s):  
J. VAN DE WETERING DE ROOIJ ◽  
M. F. VAN DRIEL ◽  
P. H. ROBINSON ◽  
H. J. A. MENSINK
Keyword(s):  
External Genitalia

Embryology of the Male External Genitalia

1980 ◽  
Vol 7 (2) ◽  
pp. 141-148
Author(s):  
Charles J. Devine
Keyword(s):  
External Genitalia ◽  
Male External Genitalia

Studies of the oestrous cycle, oestrus and pregnancy in the koala (Phascolarctos cinereus)

Reproduction ◽  
2000 ◽  
pp. 49-57 ◽  
Author(s):  
SD Johnston ◽  
MR McGowan ◽  
P O'Callaghan ◽  
R Cox ◽  
V Nicolson
Keyword(s):  
Luteal Phase ◽  
Post Partum ◽  
Plasma Concentrations ◽  
External Genitalia ◽  
Oestrous Cycle ◽  
Phascolarctos Cinereus ◽  
Pregnant Females ◽  
Peripheral Plasma ◽  
The Mean ◽  
High Concentrations

As an integral part of the development of an artificial insemination programme in the captive koala, female reproductive physiology and behaviour were studied. The oestrous cycle in non-mated and mated koalas was characterized by means of behavioural oestrus, morphology of external genitalia and changes in the peripheral plasma concentrations of oestradiol and progestogen. The mean (+/- SEM) duration of the non-mated oestrous cycle and duration of oestrus in 12 koalas was 32.9 +/- 1.1 (n = 22) and 10.3 +/- 0.9 (n = 24) days, respectively. Although the commencement of oestrous behaviour was associated with increasing or high concentrations of oestradiol, there were no consistent changes in the morphology or appearance of the clitoris, pericloacal region, pouch or mammary teats that could be used to characterize the non-mated cycle. As progestogen concentrations remained at basal values throughout the interoestrous period, non-mated cycles were considered non-luteal and presumed anovulatory. After mating of the 12 koalas, six females gave birth with a mean (+/- SEM) gestation of 34.8 +/- 0.3 days, whereas the remaining six non-parturient females returned to oestrus 49.5 +/- 1. 0 days later. After mating, oestrous behaviour ceased and the progestogen profile showed a significant increase in both pregnant and non-parturient females, indicating that a luteal phase had been induced by the physical act of mating. Progestogen concentrations throughout the luteal phase of the pregnant females were significantly higher than those of non-parturient females. Parturition was associated with a decreasing concentration of progestogen, which was increased above that of basal concentrations until 7 days post partum.

Fournier’s gangrene due to Salmonella Typhimurium in a healthy male: a rare aberrant infection

2020 ◽  
Vol 20 ◽  
Author(s):  
Varsha Gupta ◽  
Lipika Singhal ◽  
Kritika Pal ◽  
Mani Bhushan ◽  
Rajeev Sharma ◽  
...  
Keyword(s):  
Salmonella Typhimurium ◽  
Systemic Disease ◽  
External Genitalia ◽  
Fournier’S Gangrene ◽  
The Body ◽  
Healthy Male ◽  
Fournier's Gangrene ◽  
Salmonella Infections ◽  
Chief Complaints ◽  
Human Infections

Introduction: Human Salmonella infections have been classically distinguised into diseases caused by typhoidal and non-typhoidal salmonella (NTS). Typhiodal salmonella includes S. enterica serovars Typhi and Paratyphi that cause the systemic disease but are restricted to human infections, while NTS consists mainly of other serovars that predominantly cause self-limiting gastroenteritis in humans. Localisation of foci with persisting infection occurs due to dissemination of the bacteria throughout the body and can cause a variety of rare clinical syndromes at aberrant sites. Fournier’s gangrene, a rapidly progressive, often fatal, necrotizing fasciitis of the external genitalia and perineum due to Salmonella Typhimurium, is a rare manifestation and has never been reported. Case: A 22-year-old male, apparently healthy patient with no relevant past medical history presented to surgical emergency with chief complaints of swelling of bilateral scrotal area. Infective etiology was considered and a diagnosis of fournier’s gangrene was made. Pure growth of Salmonella Typhimurium was obtained after repeated subculture and was identified biochemically and on serotyping, as Salmonella enterica serotype Typhimurium using specific antisera. Conclusion: In our case report, we describe a case of fournier’s gangrene due to Salmonella Typhimurium in an otherwise healthy male to highlight the unusual presentation of Non typhoidal salmonellae at an aberrant site. We also emphasize the importance of using selective media like Selenite F broth for isolation of Salmonella Typhimurium from a pus sample.

scholarly journals Incidental Finding of Leiomyoma in Mayer-Rokitansky-Kuster-Hauser Syndrome

2021 ◽  
Vol 9 ◽  
pp. 232470962110146
Author(s):  
Oyetokunbo Ibidapo-Obe ◽  
Jerome Okudo ◽  
Oladunni Filani
Keyword(s):  
Developmental Disorder ◽  
Congenital Abnormalities ◽  
Incidental Finding ◽  
Pelvic Mass ◽  
External Genitalia ◽  
Well Being ◽  
African American Female ◽  
Mrkh Syndrome ◽  
Low Probability ◽  
The Right

Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is a sexual developmental disorder. In this disorder, there is a congenital absence of the uterus and vagina with normal external genitalia. The etiology is not well understood. Variations of this condition exist that may include congenital abnormalities and psychological problems. In this article, we discuss the case of a 47-year-old African American female who presented with acute renal failure, solitary right kidney, and a pelvic mass extending from the pelvis to the right hypochondrium determined to be a fibroid. The patient was managed by a multidisciplinary team, dialyzed, and planned for removal of the mass. While understanding the low probability of having fibroids without a uterus, fibroids should not be excluded from such patients. It is also important to consider the emotional and psychological well-being of such patients.

scholarly journals Management of peno-scrotal wound defects in a tertiary hospital in North-Western Nigeria: a 20-year retrospective review

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Abubakar Sadiq Muhammad ◽  
Ngwobia Peter Agwu ◽  
Abdullahi Abduwahab-Ahmed ◽  
Ahmed Mohammed Umar ◽  
Muhammad Ujudud Musa ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Graft Loss ◽  
External Genitalia ◽  
Tertiary Hospital ◽  
Advancement Flap ◽  
Fournier’S Gangrene ◽  
Fournier's Gangrene ◽  
Direct Closure ◽  
Secondary Intention ◽  
North Western

Abstract Background Fournier’s gangrene and trauma to the external genitalia are the commonest causes of peno-scrotal wound defects in our environment. The management of these patients includes initial resuscitation and subsequent wound care with or without wound cover. The aim of this study is to document our experience in the management of peno-scrotal defects in a tertiary hospital of North-Western Nigeria. Methods This is a 20-year retrospective study of patients managed for peno-scrotal wound defects by the Urology Unit in the Department of Surgery of our hospital from January 2001 to December 2019. Data were collected from the patients’ case notes and entered into a proforma. Data were analysed using SPSS version 25.0. Results A total number of 54 patients with peno-scrotal wound defects were managed within the study period with the mean age of 46.27 ± 22.09 years and a range of six weeks to 107 years. The wound defects were sequelae of Fournier’s gangrene in 42 patients (77.8%) and traumatic in 12 patients (22.2%). Healing by secondary intention was achieved in 20 patients (37.0%). Direct closure was done in 17 patients (31.5%), skin graft in nine patients (16.7%), and advancement flap in eight patients (14.8%) depending on the location and size of the defects. Fourteen patients (26.0%) developed surgical site infection ± wound dehiscence and partial graft loss. The complication rate was higher in post-Fournier’s gangrene wound defects, but without statistical significance (p = 0.018). Conclusion Fournier’s gangrene and trauma to the external genitalia are the commonest causes of peno-scrotal wound defects in our environment. Smaller wound defects were healed by secondary intention, while larger defects required either direct closure or the use of advancement flap or skin grafting depending on the location and size of the wound. The study reported a higher post-repair complication in patients that had Fournier’s gangrene.

Cytogenetics and sex determination in man and mammals

1970 ◽  
Vol 2 (S2) ◽  
pp. 7-30 ◽  
Author(s):  
C. E. Ford
Keyword(s):  
Y Chromosome ◽  
External Genitalia ◽  
Mutant Gene ◽  
Normal Female ◽  
Human Female ◽  
Present Evidence ◽  
Male Development ◽  
Sex Development ◽  
Internal Genitalia ◽  
Male External Genitalia

SummarySex in man and probably throughout the class mammalia is normally determined by the presence of a Y chromosome (male) or its absence (female). The presence of genetic loci on both the long and the short arm of the X chromosome in double dose appears to be essential for the development of mature functional ovaries in the human female though a single X suffices in the female mouse.The development of masculine genital anatomy and phenotype is a consequence of prior formation of testes. In the absence of gonads of either kind, female internal and external genitalia are formed but secondary sex development fails. In rare human families a mutant gene suppresses the development of male external genitalia in 46, XY embryos but permits the development of testes and male internal genitalia. The external phenotype is normal female (syndrome of testicular feminization). A sex-linked mutant gene in the mouse has a similar effect.The locus or loci directly concerned with male development might lie wholly on the Y chromosome or might be located on another chromosome or chromosomes. In the latter case it (or they) must be repressed in the female and normally activated by a locus or loci on the Y chromosome in the male. Present evidence does not permit the exclusion of either possibility.

scholarly journals The Role of Sonic Hedgehog-Gli2 Pathway in the Masculinization of External Genitalia

Endocrinology ◽  
2011 ◽  
Vol 152 (7) ◽  
pp. 2894-2903 ◽  
Author(s):  
Shinichi Miyagawa ◽  
Daisuke Matsumaru ◽  
Aki Murashima ◽  
Akiko Omori ◽  
Yoshihiko Satoh ◽  
...  
Keyword(s):  
Signaling Pathway ◽  
Sonic Hedgehog ◽  
Hedgehog Signaling ◽  
External Genitalia ◽  
Sexually Dimorphic ◽  
Hedgehog Signaling Pathway ◽  
Initial Development ◽  
Urethral Plate ◽  
Male External Genitalia

During embryogenesis, sexually dimorphic organogenesis is achieved by hormones produced in the gonad. The external genitalia develop from a single primordium, the genital tubercle, and their masculinization processes depend on the androgen signaling. In addition to such hormonal signaling, the involvement of nongonadal and locally produced masculinization factors has been unclear. To elucidate the mechanisms of the sexually dimorphic development of the external genitalia, series of conditional mutant mouse analyses were performed using several mutant alleles, particularly focusing on the role of hedgehog signaling pathway in this manuscript. We demonstrate that hedgehog pathway is indispensable for the establishment of male external genitalia characteristics. Sonic hedgehog is expressed in the urethral plate epithelium, and its signal is mediated through glioblastoma 2 (Gli2) in the mesenchyme. The expression level of the sexually dimorphic genes is decreased in the glioblastoma 2 mutant embryos, suggesting that hedgehog signal is likely to facilitate the masculinization processes by affecting the androgen responsiveness. In addition, a conditional mutation of Sonic hedgehog at the sexual differentiation stage leads to abnormal male external genitalia development. The current study identified hedgehog signaling pathway as a key factor not only for initial development but also for sexually dimorphic development of the external genitalia in coordination with androgen signaling.

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