Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Chẩn Đoán Bằng Hình Ảnh Các Khối U Gan Ở Bệnh Nhân Bệnh Gan Mạn Tính
Tóm tắt
Các kỹ thuật chẩn đoán hình ảnh đã trở thành phương pháp chủ yếu được chấp nhận trong việc đánh giá các tổn thương gan ở bệnh nhân xơ gan và, nhờ sự cải thiện khả năng chẩn đoán trong những năm gần đây, đã hạn chế hơn nữa nhu cầu lấy mẫu sinh thiết. U nguyên bào gan (HCC) là nguyên nhân phổ biến nhất của các nốt gan mới phát ở bệnh nhân xơ gan, và việc chẩn đoán của nó dựa vào các nghiên cứu chẩn đoán hình ảnh không xâm lấn có sử dụng thuốc cản quang. Các tiêu chí chẩn đoán đã được xác nhận một cách rộng rãi, và mẫu mạch mà được cho là điển hình cho HCC là sự tăng cường động mạch của nốt u, tiếp theo là sự rửa trôi trong giai đoạn tĩnh mạch cửa hoặc giai đoạn muộn. Mẫu hình này cho giá trị dự đoán dương tính cho chẩn đoán HCC khoảng 97% ở các nốt trong xơ gan theo tài liệu. Tuy nhiên, nhu cầu phân biệt chính xác hơn với các loại ung thư khác phát sinh trong xơ gan, chiếm khoảng 3% còn lại, đặc biệt là u đường mật trong gan, đã dẫn đến sự thay đổi theo thời gian trong các khuyến nghị về chẩn đoán không xâm lấn HCC trong xơ gan. Bài đánh giá hiện tại nhằm báo cáo những nghiên cứu thú vị vừa được công bố gần đây, đã mang lại những hiểu biết mới về vấn đề định hình và chẩn đoán phân biệt các khối u gan trong các bệnh gan mạn tính.
Từ khóa
#U gan #bệnh gan mạn tính #chẩn đoán hình ảnh #u nguyên bào gan #xơ gan #chẩn đoán không xâm lấnTài liệu tham khảo
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