Atypical occurrence of anti-Ma2-associated encephalitis after breast cancer surgery and COVID-19

In this report, we present a rare case of anti-Ma2-associated encephalitis concurrent with coronavirus disease 2019 (COVID-19) following breast cancer surgery. The patient exhibited minimal clinical symptoms COVID-19 infection but developed seizures and altered mental status after surgery, leading to diagnosis classic paraneoplastic syndrome. This highlights the possibility neurological syndrome even surgery need for careful consideration post-acute syndromes when occur an infection. Keywords: Limbic encephalitis, Ma2 antigen, Breast neoplasms,