In most disc hernias, a part of exterior fibers of annulus fibrosus had not torn and the disc material is totally within the disc; but, there is diffuse disc protuberance. Although it is less frequent, the cartilaginous tissue bulges out the torn sheath or a free fragment compresses spinal canal and nerve root.
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Pituitary tumors or adenomas are neoplasms characterized by over-growth of the cells within the pituitary gland, a gland located at the skull base. Pituitary tumors smaller than 10 mm are called microadenomas whereas those larger than 1 cm are called macroadenomas.
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