The idea that assessment is intrinsic to effective instruction is traced from early experiments in the individualization of learning through the work of Benjamin Bloom to reviews of the impact of feedback on learners in classrooms.
Incidental hypervascular lesions are also very common findings in liver imaging. It is important to differentiate between 'touch' and 'don't touch' lesions. Benign 'don't touch' hypervascular tumors include hemangioma, FNH and small adenomas.
By Michael Perry, M.D. Facet hypertrophy is an enlargement of one or more facet joints. These joints connect the spinal vertebrae to facilitate flexibility and motion. Hypertrophy of the facet joints is usually experienced by people over the age of 30. The reason the condition is usually found in middle-aged adults is that, over time, or due to a traumatic injury, the facet joints progressively degenerate.