Agenesis of the corpus callosum (ACC) is complete or partial absence of the structure that connects the two hemispheres of the brain - the corpus callosum, which is the largest fibre tract in the central nervous system.It can occur as an isolated condition or in combination with other cerebral abnormalities. These include:
Image caption Isabel dos Santos is relatively shy despite her successful business career. Isabel dos Santos, the eldest daughter of Angola's president, has become Africa's first female billionaire, US financial magazine Forbes has said. The 40 year old's shares in several Portuguese firms, including a TV cable company, and an Angolan bank put her on the billionaires' list, Forbes said. Her first venture was a restaurant in Luanda called Miami Beach, said the magazine that tracks the world's rich. Most of the population in oil-rich Angola live on about $2 (Â£1.25) a day.
The youngest female billionaire in the U.S. has made a fortune on fast food. But the story of Lynsi Torres, the 30-year-old owner and president of the beloved In-N-Out Burger chain and one of the world's youngest billionaires, largely remains a mystery, Bloomberg reported. Torres, who has no college degree and little business training, inherited the West Coast-based company from her grandparents, Harry and Esther Snyder.