Abstract
Introduction: This case report presents a rare occurrence of lupus mastitis affecting the breast.
Case Presentation: An induration with mild discomfort was detected in the upper inner quadrant of the right breast of a 27-year-old Chinese woman with regular menstrual cycles. The patient is currently unmarried and has no previous history of full-term pregnancies or lactation. An ill-defined, subcutaneous, hyperechoic lesion with no calcification was visualized on breast ultrasound. Peripheral and internal blood flow signals demonstrated high intensity. Pathological analysis of a breast needle biopsy revealed fat lobule necrosis accompanied by mixed lymphoplasmacytic and histiocytic aggregates.
Conclusion: The diagnosis of lupus mastitis necessitates a comprehensive evaluation of the patient's medical history, serological testing, imaging studies, and histopathological analysis.
Keywords: Lupus mastitis, Biopsy, Breast, Systemic lupus erythematous, Ultrasonography, Magnetic resonance imaging.
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