Gigantism and acromegaly are two disorders with the same disease mechanism and somewhat similar presentations. Even though they have the same disease mechanism, the two have entirely different outcome simply due to the age of onset. Gigantism is the result if the disease mechanism starts in childhood.
Adult Velociraptors grew up to 6.8 feet (2 meters) long, 1.6 feet (0.5 meter) tall at the hip and weighed up to 33 pounds (15 kilograms).
Thanks to a ludicrously long neck, it stood 17m (55 ft) tall, but relatively few fossils of it have been found. Its estimated height is largely based on the more complete remains of Giraffatitan brancai, which once held the biggest dinosaur title.