Traumatic neuroma. Light micrograph of a section through a neuroma. Traumatic neuroma is a non-neoplastic lesion that occurs in response to injury or surgery. Usually nerves can repair themselves by proximal to distal proliferation of Schwann cells; when this reparation is interrupted or cannot occur in an orderly manner, the proximal aspect of the nerve creates a disorganized proliferation of nerves, that is, a neuroma. Traumatic neuromas can occur after amputation of a limb or autoamputation of a digit in utero. These lesions are often painful. Traumatic neuromas are composed of a haphazard arrangement of small nerve fascicles, containing axons, Schwann cells, and perineurial cells, with surrounding fibrosis.Other reactive changes, such as capillary and myofibroblastic proliferation, are often present. Magnification: x100 when printed at 10 centimetres wide. Human tissue.
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達志影像
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