{Reference Type}: Case Reports {Title}: IgG4-related disease in the pelvis: A mimicker of gynecologic malignancy. {Author}: Stearns K;Vuppuluri B;Lininger R;Berry LK; {Journal}: Gynecol Oncol Rep {Volume}: 54 {Issue}: 0 {Year}: 2024 Aug 暂无{DOI}: 10.1016/j.gore.2024.101428 {Abstract}: This report describes a unique case of IgG4-related disease in a 36-year-old woman who presented with a pelvic mass. Although CT and MR imaging initially suggested a malignant process, further work-up including sigmoidoscopy and surgical exploration revealed no evidence of malignancy. The final pathology indicated an inflammatory process, leading to the diagnosis of IgG4-related disease. After receiving appropriate systemic treatment, the patient's symptoms significantly improved. This case underscores the limitations of current imaging studies and emphasizes the importance of considering a wide range of potential diagnoses when dealing with pelvic masses of uncertain etiology.