Non-atretic follicles dissected from prepubertal and adult ovaries were allocated in three groups: a) < 1 mm; b) 1-2 mm; c) > 2 mm. After 24 h of maturation, a lower percentage of adult oocytes from group a (P < 0.01) reached metaphase II than those from groups b and c (70.4 versus 89.5 and 95.5). Prepubertal oocytes showed similar results (P < 0.01; 27.2 versus 79.8 and 81.8). There was a sign...

BACKGROUND The onset of vitiligo during childhood is common. Limited data exist that compare the clinical associations of prepubertal and postpubertal vitiligo in Arabs. OBJECTIVE To compare the clinical profile of pre and postpubertal onset vitiligo. METHODS A cross-sectional observational study was conducted. The Vitiligo European Task Force questionnaire was completed for each patient. ...

OBJECTIVE Papillary thyroid cancer (PTC) may behave differently in prepubertal children as compared to pubertal children and adults. BRAF gene activating mutations may associate with PTC by creating aberrant activation. We aimed to evaluate the clinicopathological characteristics of PTC patients with emphasis on the pubertal status and also to investigate the association of BRAFV600E mutation w...

Prepubertal testicular tumors are rare compared with postpubertal testicular tumors. The incidence of prepubertal testicular tumors peaks at 2 years of age, tapers off after 4 years of age, and then begins to rise again at puberty. Prepubertal and postpubertal testicular tumors show many differences, including the typical tumor histology, molecular biological differences, and the malignant pote...

Prepubertal vaginal bleeding is considered as isolated menarche when, in the absence of detectable abnormality, it is not accompanied by any evidence of sexual development. The etiology remains unclear and various hypotheses have been put forward. This is the first time that a series of ultrasound patients with prepubertal menarche whose investigation has included imaging with ultrasound has be...