type of midline neck masses in children. Though usually benign, 1% of cysts may undergo neoplastic change. The most common histological subtype is papillary carcinoma (80%) followed in order of frequency by mixed follicular-papillary, squamous, follicular, anaplastic, and hurthle-cell carcinoma (1). The synchronous occurrence of thyroglossal duct carcinoma and thyroid carcinoma in the thyroid g...

Notch signaling plays an important role in hair follicle maintenance, and it has been suggested that Notch is also required for follicular fate selection by adult hair follicle stem cells in the bulge. Here we demonstrate that, on the contrary, Notch signaling in bi-potential bulge stem cells or their uncommitted descendents acts to suppress the epidermal fate choice, thus ensuring follicular f...

Ultrasonography is the primary imaging tool for a patient considered to have an ovarian cyst. On a sonogram, simple ovarian cysts have a uniformly thin, rounded wall and a unilocular appearance that is either hypoechoic or anechoic. They usually measure 2.5-15 cm in diameter, and posterior acoustic enhancement (a hyperechoic area) may be visible deep to the fluid-filled cyst. Most commonly, the...

The thyroid gland is the largest classic endocrine organ that effects many organs of the body and plays a significant role in the process of Metabolism in animals. The aim of this study was to investigate the prevalence of thyroid disorders diagnosed by ultrasound and microscopic Lesions of the thyroid during the slaughter of apparently healthy One Humped Camels (Camelus dromedarius) in Iran. R...

Ovarian torsion is one of the common gynaecologic surgical emergencies. stimulation in infertility treatment has become a major risk factor for ovarian torsion. The diagnosis condition challenging early pregnancy and timely can prevent morbidity both mother foetus. We present case 28 years old primi gravida known polycystic syndrome (PCOS) conceived after ovulation induction, at 7 weeks period ...