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AJNR - American Journal of Neuroradiology

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HTLV-I-Associated Myelopathy: Acute Progression and Atypical MR Findings

Miyuki Shakudo^,a, Yuichi Inoue^a and Tsuyoshi Tsutada^a

^a From the Departments of Radiology (M.S., Y.I.) and Neurology (T.T.), Osaka City University Medical School, 1–4–3 Asahimachi, Abeno-ku, Osaka 545–8585, Japan.

View larger version (122K): [in a new window]   FIG 1. MR images (Nov 21, 1994). Sagittal T2-weighted images reveal marked cord swelling and high intensity in the central portion over the entire length of the spinal cord (A and B). Peripheral enhancement is shown by a sagittal T1-weighted image (C) and an axial T1-weighted image at the C7/T1 level (D) with contrast material

View larger version (96K): [in a new window]   FIG 2. MR images (Dec 3, 1994). Sagittal T2-weighted image reveals mild cord swelling with mild high signal in the central portion (A). Contrast-enhanced axial T1-weighted image at the C7/T1 level reveals mild cord swelling and mild contrast enhancement (B)

View larger version (103K): [in a new window]   FIG 3. MR images (Jan 31, 1995). Sagittal T2-weighted image reveals a cord swelling with central high intensity (A). Contrast-enhanced axial T1-weighted image at T3 level reveals a swollen cord with peripheral enhancement (B)

View larger version (99K): [in a new window]   FIG 4. MR images (Dec 14, 1995). The spinal cord is normal in size and shows no abnormal signal on the T2-weighted image (A). Enhanced axial T1-weighted image at the C5/6 level shows no abnormal enhancement (B)

View larger version (104K): [in a new window]   FIG 5. MR images (Mar 31, 1998). The spinal cord has no signal abnormality on the T2-weighted image (A). Mild cord atrophy is visible on the contrast-enhanced, axial T1-weighted image at the C5/6 level (B)