Neuroblastoma with spinal involvement. There is an enhancing retroperitoneal mass that measures up to approximately 9 cm, which abuts the lumbar spine at multiple levels. In particular, the mass extends into the widened left L2-L3 and L3-L4 neural foramina with slight left epidural extension at these levels, but there is no spinal cord compression. The tumor also abuts the lateral aspects of the left L1-L2 and L4-L5 neural foramina, without intraforaminal extension at these levels. The spinal cord displays normal signal and morphology. There are no intrathecal contrast enhancing lesions. There is straightening of the lumbar spine alignment in the sagittal plane. Otherwise, the vertebral body heights are preserved and there is no evidence of tumor invasion into the vertebral bone marrow. However, the tumor encases and displaces the aorta and inferior vena cavity.
The large retroperitoneal mass that corresponds to neuroblastoma is associated with left-sided L2-L3 and L3-L4 neural foraminal extension and slight right epidural spinal canal extension, but no spinal cord compression. Please refer to the chest, abdomen and pelvis CT report form July 1, 2015 for associated intra-abdominal findings.