BMC neurology · 2023
Autoimmune glial fibrillary acidic protein astrocytopathy associated with breast cancer: a case report.
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Yaguchi Tomonori, Kimura Akio, Takekoshi Akira, Matsuo Mikiko, Tomita Hiroyuki, Shimohata Takayoshi
Аннотация
BACKGROUND: Autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy (GFAP-A) is an autoimmune inflammatory central nervous system disorder characterized by the detection of autoantibodies that recognize GFAP in CSF. The pathogenesis of GFAP-A is poorly understood. Some patients had a neoplasm detected and GFAP expressed by neoplasms is plausible as immunogen triggering paraneoplastic neurological autoimmunity.
CASE PRESENTATION: We report a case of 76-year-old female patient with GFAP-A complicated with breast cancer. She presented with altered consciousness, nuchal rigidity, speech disturbances, and weakness. Her clinical symptoms were improved by immunotherapy and cancer treatments. Immunohistochemical analysis showed that the restricted tumor expressed GFAP. The infiltration of CD3 + T cells were observed in the peritumoral and intratumoral areas. The most common infiltrating lymphocytes were CD8 + T cells. CD4 + T cells and CD20 + B cells were also observed in the predominant peritumoral area.
CONCLUSIONS: These results suggest that GFAP-A may occur in a paraneoplastic neurological syndrome associated with breast cancer.
CASE PRESENTATION: We report a case of 76-year-old female patient with GFAP-A complicated with breast cancer. She presented with altered consciousness, nuchal rigidity, speech disturbances, and weakness. Her clinical symptoms were improved by immunotherapy and cancer treatments. Immunohistochemical analysis showed that the restricted tumor expressed GFAP. The infiltration of CD3 + T cells were observed in the peritumoral and intratumoral areas. The most common infiltrating lymphocytes were CD8 + T cells. CD4 + T cells and CD20 + B cells were also observed in the predominant peritumoral area.
CONCLUSIONS: These results suggest that GFAP-A may occur in a paraneoplastic neurological syndrome associated with breast cancer.