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Figure 1: Sagittal T2-weighted magnetic resonance imaging scans showing (a) tonsillar descent below the level of the C1 arch with obliteration of the cerebrospinal fluid pathways, anterior and posterior to the cervicomedullary junction with the presence of a multiloculated cervical and dorsal syrinx; and, (b) the follow-up image with tonsil at the level of the foramen magnum and almost collapsed syrinx cavity

Figure 1: Sagittal T2-weighted magnetic resonance imaging scans showing (a) tonsillar descent below the level of the C1 arch with obliteration of the cerebrospinal fluid pathways, anterior and posterior to the cervicomedullary junction with the presence of a multiloculated cervical and dorsal syrinx; and, (b) the follow-up image with tonsil at the level of the foramen magnum and almost collapsed syrinx cavity