4 Conclusion
In summary, for postoperative breast cancer patients requiring chemotherapy, a careful risk evaluation for bone marrow suppression should be conducted before initiating chemotherapy. For patients undergoing chemotherapy regimens with a moderate-to-high risk of FN, regardless of the treatment goal (cure, survival extension, or improvement of disease-related symptoms), the prophylactic use of G-CSF should be considered. Regular blood examinations should also be performed during chemotherapy and if bone marrow suppression is detected, timely corrective treatment is necessary. For febrile patients, a comprehensive abdominal CT or ultrasound examination should be conducted after chemotherapy to rule out the possibility of bacterial pyogenic liver abscess. KPPLA-induced EE is a clinically atypical infectious disease characterised by rapid progression and a poor prognosis. In patients with a confirmed KPPLA diagnosis, timely systemic anti-infective treatment should be administered. If necessary, pyogenic liver abscess puncture and drainage should also be performed. Additionally, routine fundus examination should be conducted regularly [19,27]. Early diagnosis and treatment are essential to preserve vision, improve prognosis, and prevent serious adverse consequences such as blindness or enucleation due to EE.