Benign bone tumor containing osteoclast-like giant cells. Most common benign tumor in children, affecting 30-40% of normal children. Occurs in metaphysis of long bones, especially lower extremities. Usually asymptomatic and discovered incidentally
Antral follicle is a secondary or tertiary ovarian follicle. Forms fluid-filled antrum adjacent to oocyte. Granulosa and theca cells continue mitosis with increasing antrum volume. Maximum diameter reaches 20-22 mm during ovulation. Granulosa cells differentiate into four distinct subtypes
Cestoda is a class of parasitic worms in the flatworm phylum. Most species are tapeworms, with 6,000 described species. Adult tapeworms have scolex, neck, and segmented body called strobila. They are hermaphrodites with both male and female reproductive organs
Doctors are fundamental to a nation's healthcare system. Countries with established education systems have better doctors. Australia, Greece, Canada, Switzerland, Germany, France, and US lead in orthopaedic surgeons
Healthcare professionals globally contribute to societal well-being. Country's doctor quality reflects educational infrastructure. Established nations like Australia, Greece, Canada have premier doctors
BME occurs when normal bone marrow is replaced with fluid and blood. Most common in legs, especially knee joint. Can result from injuries, physical changes, or infections. May develop from avascular necrosis or cancer