17-β-hydroxysteroid dehydrogenase type 3 (17β-HSD3) is an important enzyme involved in the final steps of androgen synthesis and is required for the development of normal male external genitalia. 46,XY individuals with deficiency of this enzyme present a wide clinical spectrum from a female appearance of the external genitalia through ambiguous genitalia to a predominantly male genitalia with m...

The male genitalia of Belminus rugulosus Stål and Belminus corredori Galvão & Angulo are described and illustrated for the first time. Comments on the holotype of Parabelminus yurupucu Lent & Wygodzinsky are presented (Hemiptera: Heteroptera: Reduviidae: Triatominae: Bolboderini). A discussion on previous data in the literature on male genitalia of species of Belminus Stål is provided.

The genus Rhinoleucophenga Hendel (1917) encompasses 21 described species but is still not well known as a taxon. Even the currently described species lack full descriptions, i.e., illustrations of the male genitalia are absent, which makes their identification difficult. This study describes two new species of Rhinoleucophenga with the illustration of their male genitalia.

The male holotype of CuZex (CuZex) bihamatus Edwards 1926 is redescribed, the male genitalia illustrated and its affinity as determined from comparative studies of genitalia of related species in the Sitiens group is discussed. In the preliminary study of the type material of Oriental CuZex at the British Museum (Natural History), I have also examined for comparative purposes the types of a num...

The spirochetal flora of normal female genitalia is similar to that of the male and consists of Treponema calligyrum, Treponema minutum, and Spironema refringens. The types are present in varying proportions, but the calligyrum usually predominates, and the refringens is the least frequent. The female genitalia are much richer generally in the number of spirochetes than the male.

Appearance of the male genitalia is linked with self-esteem and sexual identity. Aesthetic surgery of the male genitalia serves to correct perceived deficiencies as well as physical deformities, which may cause psychological distress. Attention to patient motivation for surgery and to surgical technique is key to achieving optimal results. In this review, the authors describe aesthetic surgical...

Results: Testes did not show any increase in size until theonsetofpubertyat age11years,whereaspenilegrowth was gradual after birth. However, both penile and testicular development demonstrated peak growth from 12 to 16 years of age, which coincided with the maximal male pubertal growth spurt. Data indicate an earlier pubertal development for this study population than that for a similar populat...

Ambiguity of the external genitalia has been frequently documented in male patients classified as the Smith-Lemli-Opitz (SLO) syndrome. Four previous case reports suggest that in extreme cases of the SLO syndrome there may be complete lack of development of the male external genitalia even in the presence of a normal male 46,XY karyotype. We present an additional case of a phenotypically female...