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Special Feature
September 2000

Pathological Case of the Month

Author Affiliations

From the Departments of Pathology (Drs Arnold and Gilbert-Barness) and Pediatrics (Dr Cameron Baker), Tampa General Hospital, Tampa, Fla. Dr Arnold is now with the Department of Pathology, University of Miami School of Medicine, Miami, Fla.

 

ENIDGILBERT-BARNESSMD

Arch Pediatr Adolesc Med. 2000;154(9):961. doi:10.1001/archpedi.154.9.961

A 15-YEAR-OLD BOY was referred with progressive left lower extremity weakness, severe lower back pain, and an abnormal gait for 2 months. He underwent a double herniorrhaphy at age 6 months and was diagnosed with kyphoscoliosis at age 13 years. On physical examination, he weighed 53 kg and was 180 cm tall. There was circumduction of the left lower extremity. The left thigh circumference was 2 cm smaller than the right, and the left gluteal muscles were atrophic. There was decreased pain sensation, and muscle tone was increased; however, motor strength was decreased, particularly in the hip flexors. Babinski signs were present bilaterally.

Magnetic resonance imaging (MRI) revealed multiple intradural, intramedullary, and extramedullary masses throughout the spinal canal (Figure 1); the nerve roots of the cauda equina were also involved. Imaging studies of the brain showed bilateral masses involving the seventh and eighth cranial nerves (Figure 2). The patient underwent partial excision of the mass in the cauda equina; microscopic sections are shown (Figure 3 and Figure 4).

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