Abdominal Key

(1) Al Agouza, Cairo, PO, Egypt   7.1 Embryology and Anatomy Two distinct embryological pathways are suggested for the development of the distal glanular urethra. One theory supports the idea…

(1) Al Agouza, Cairo, PO, Egypt   5.1 Testicular Development During the seventh week, XY male gonads begin to differentiate under the influence of a series of testis-determining genes. The…

(1) Al Agouza, Cairo, PO, Egypt   Embryology The primordial germ cells are first found at the 24th day near the allantois. The germ cells proliferate and migrate to reach…

(1) Al Agouza, Cairo, PO, Egypt   13.1 Embryological Background In the female fetus, the Müllerian ducts normally meet in the midline by 8 weeks and subsequently give rise to…

(1) Al Agouza, Cairo, PO, Egypt   10.1 Embryological Background Nomenclature The hymen is named after the God of marriage “Hymenaios” in classical Greek mythology. The word “hymen” is usually…

(1) Al Agouza, Cairo, PO, Egypt   Nomenclature (Fig. 3.1) Prepuce from Latin prae, in front, and putium, penis Fig. 3.1 Normal prepuce covering the glans completely Foreskin, preputium, and…

(1) Al Agouza, Cairo, PO, Egypt   12.1 Vaginal Atresia (VA) The vagina originates from two embryonic structures: the upper part from Müllerian duct system and the lower third from…

(1) Al Agouza, Cairo, PO, Egypt   The gynecologic examination of the female genitalia of children and young adults belongs in the hands of specialists and should be performed in…

(1) Al Agouza, Cairo, PO, Egypt   The female urethra is a short tubular structure 3–5.5 cm in length; it is supported by the pubocervical fascia posteriorly. The sphincters are…

(1) Al Agouza, Cairo, PO, Egypt   9.1 Anatomical and Embryological Background (Fig. 9.1) Fig. 9.1 Anatomy of the labia In girls, the unfused parts of the labioscrotal (genital) swellings…