In solid organ tumours, such as hepatocellular carcinoma, Guillain Barre syndrome, chronic inflammatory demyelinating polyneuropathy, anti-GMI ganglioside antibody-positive degenerative axonal polyneuropathy, anti-Hu antibody-positive peripheral neuropathy, and PR3-Antineutrophil-Cytoplasmic-Antibody-positive demyelinating polyneuropathy are the possible subtypes of paraneoplastic neuropathy [85,86,87,88,89]. The gene discussed is PRTN3; the disease is hepatocellular carcinoma.