A case of paraneoplastic neurological syndrome associated with Hodgkin lymphoma

　An 86-year-old man was admitted to another hospital with ataxia and general fatigue. Brain MRI scan revealed a high-intensity area in the bilateral thalamus, and he was referred to Okayama University Hospital for detailed examination. Cerebrospinal fluid (CSF) and blood tests showed no evidence of infection or autoimmune encephalitis. An FDG-PET/CT scan revealed systemic lymphadenopathy, and cervical lymph node biopsy showed classical Hodgkin lymphoma. Neurological symptoms were suspicious of paraneoplastic neurological syndrome (PNS), but onco-neural antibodies were not detected in either serum or CSF. He was referred to our hospital, Okayama Red Cross Hospital, for treatment and administered 6 cycles of an ABVD regimen, and an FDG-PET/CT scan showed a complete remission. The brain lesion disappeared and neurological symptoms were improved, so he was diagnosed with PNS. PNS is rare complication associated with malignant lymphoma and early diagnosis is important because neurological symptoms can be improved with anti-cancer treatment.

症例報告(Case Reports)