The breadth of anatomical and functional diversity among amniote external genitalia has led to uncertainty about the evolutionary origins of the phallus. In several lineages, including the tuatara, Sphenodon punctatus, adults lack an intromittent phallus, raising the possibility that the amniote ancestor lacked external genitalia and reproduced using cloacal apposition. Accordingly, a phallus m...

sent with normal male external genitalia, the vast majority will appear phenotypically female or have ambiguous genitalia (table 1). The majority of cases of the Denys-Drash syndrome with any one of these three phenotypes of their external genitalia will have a normal male karyotype. The relative paucity of cases with a female karyotype may be because of underdiagnosis of the syndrome in phenot...

Anopheles (Nyssorhynchus) atacamensis, a new species in the subgenus Nyssorhynchus, is described and validated using morphological characters of the male and female adult, male genitalia and immature stages. Molecular characterization employing sequences of the ITS2 rDNA and COI mtDNA are provided. The new taxon is compared with Anopheles (Nyssorhynchus) pictipennis (Philippi) from central Chil...

Since the beginning, genital hygiene has become a concern for women susceptible to infections of urinary tract and reproductive system where vagina is an unsterile organ related external exposure close anus. Several problems personal female genitalia arise due lack understanding literature discussing this matter. This review will discuss normal flora procedures daily vaginal care, which aims in...

background: x-linked lissencephaly with ambiguous genitalia (xlag) is a recently described genetic disorder, in which patients present with lissencephaly, agenesis of the corpus callosum, refractory epilepsy of neonatal onset, acquired microcephaly, and male genotype with ambiguous genitalia. xlag is responsible for a severe neurological disorder of neonatal onset in boys. a gyration defect con...

Polana amapaensis Coelho, 1991 has its ovipositor described and illustrated, based on the examination of the female paratype, from Amapá State, Brazil. This is the first detailed description of the female genitalia of a Polana DeLong, 1942 species. We compared the female genitalia of P. amapaensis with those of other Gyponini genera. Our results confirm that the female genitalia in this tribe c...

case presentation we reported a 36-year-old man with alhe lesion on penis and discussed the clinical and histopathological features. conclusions when we have any dermal or subcutaneous lesion on genitalia, we can consider alhe in differential diagnosis. introduction angiolymphoid hyperplasia with eosinophilia (alhe) is a benign slow-growing vascular proliferation characterized by dome-shaped vi...

Hypotheses: Individuals in good condition are better able to invest in costly traits associated with sexual selection and sexual conflict than individuals in poor condition. Sexual selection favours males with male genitalia that are appropriate for stimulating any encountered female (‘one size fits all’ hypothesis) and thus the allometric slopes of genitalia should be equal to 0. Organism: The...