U PHẦN MỀM NÔNG: MỐI QUAN HỆ GIỮA U VÀ MẠC CƠ TRÊN CỘNG HƯỞNG TỪ TRONG CHẨN ĐOÁN TỔN THƯƠNG LÀNH TÍNH VÀ ÁC TÍNH

Abstract

Objective: This study aims to evaluate the relationship between tumor margins and the fascia on magnetic resonance imaging (MRI) of superficial soft tissue tumors, thereby allowing for differentiation between benign and malignant lesions. Patients and Methods: The study group consisted of 163 patients referred to our centers with a histopathological diagnosis of superficial soft tissue tumors between August 2020 and August 2024. All patients were indicated for routine MRI before biopsy or surgery. Data on preoperative MRI and histopathological results were collected retrospectively. The involvement of the fascia was classified into five groups, and we analyzed the benign and malignant potential in each group. Group 1: No contact with the fascia. Group 2: Slight contact with the fascia at sharp angles. Group 3: Greater area of contact with the fascia at either sharp or obtuse angles. Group 4: Extensive contact with the fascia at obtuse angles. Group 5: Tumor crossing into the fascia. Results: Among the 163 patients, 115 had benign lesions and 48 had malignant lesions. The characteristic of tumor crossing into the fascia (Group 5) (P=0.02) showed a statistically significant difference between benign and malignant superficial soft tissue tumors. The probability of a superficial soft tissue tumor crossing into the fascia being malignant was 3.5 times higher than that of a benign tumor. Conclusion: MRI plays a crucial role in the determining the relationship between soft tissue tumors and the fascia. Infiltrative features through the fascia are highly suggestive of malignant soft tissue tumors.