Expanding the spectrum of SOX1-antibodies in neuropathy: the coexistence of anti-SOX1 and Guillain-Barré syndrome-a case report.

This is the first case of GBS associated with anti-SOX1-antibodies described in literature. Although the concept of paraneoplastic GBS is controversial, different cases have been reported and GBS is considered a non-classical paraneoplastic syndrome. Our case expands the anti-SOX1-antibody clinical spectrum with relevant implications for the clinical practice.