Chromosomal polymorphism of constitutive heterochromatin regions of chromosome 1, 9, 16, and Y is a stable evolutionary feature that is thought to cause no phenotypic alterations. The presence of definite ethinic and age-related peculiarities of chromosomal polymorphism variants was established. Some authors reported the relationship of the separate variants with the phenotypic characteristics, such as reproductive function, physiological and anthropometric indices, and oncological diseases. Nevertheless, the role of constitutive heterochromatin is still unknown. We experienced and reported short children associated with polymorphisms in chromosme 1qh+ and 16qh+.
Child ; Chromosomes, Human, Pair 1 ; Heterochromatin ; Humans

Congenital cysts of the gallbladder are extremely rare, hence only a few ciliated foregut cysts of gallbladder have been reported. We report a case of a 20-year-old woman presenting with mild right upper quadrant abdominal discomfort, with normal levels of serum bilirubin and liver function tests. Abdominal ultrasonography revealed a well-defined cystic mass measured about 2 cm attached to the neck of gallbladder, with internal echogenic debris suggesting a complicated cyst, such as a hemorrhagic cyst. Abdominal computed tomography and magnetic resonance cholangiopancreatography revealed similar findings. Laparoscopic cholecystectomy showed a slightly distended gallbladder. The size of cyst on the neck was 1.6x1.2 cm, and it contained mucosa lined by ciliated pseudostratified columnar epithelium and underlying smooth muscle layers. Histopathology identified a ciliated foregut cyst of gallbladder.
Abdomen/diagnostic imaging ; Cholangiopancreatography, Magnetic Resonance ; Cholecystectomy, Laparoscopic ; Cysts/diagnostic imaging/pathology/surgery ; Female ; Gallbladder/pathology/surgery ; Gallbladder Diseases/*diagnosis ; Humans ; Tomography, X-Ray Computed ; Ultrasonography ; Young Adult