NF1 with back pain and paraspinal lesions. There are extensive stigmata of neurofibromatosis type 1, including numerous multilevel cervical, thoracic, lumbar, and sacral foraminal and extraforaminal neurofibromas, which demonstrate a "target appearance" in cross section and appear to have increased in size and number since 2011. Many of the neural foramina are widened, but the spinal cord and cauda equina are otherwise unremarkable. There are also multiple cutaneous, subcutaneous, and paraspinal muscle neurofibromas, which have generally increased in size and number since 2011. A dominant lesion in the right supraclavicular fossa region measures 25 mm in width, for example. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. There is a small amount of partially imaged fluid within the pelvis, which is likely physiologic.
Stigmata of neurofibromatosis type 1, including numerous multilevel cervical, thoracic, lumbar, and sacral foraminal and extraforaminal neurofibromas, as well as multiple cutaneous, subcutaneous, and paraspinal muscle neurofibromas, which have generally increased in size and number since 2011.