From the Departments of Radiology.
Pathology, University of Texas, Southwestern Medical Center, Dallas, TX.
Clin Nucl Med. 2023 Sep 1;48(9):796-798. doi: 10.1097/RLU.0000000000004753. Epub 2023 Jun 23.
Hibernomas are "pseudolipomas" originating from remnants of fetal brown adipose tissue. These rare benign tumors may occur throughout the body but most commonly in the thigh, shoulder, back, and neck, and are rarely found in the abdominal cavity, retroperitoneum, breast, bones, scrotum, and perirectum. We present a case of a 58-year-old woman with a known mediastinal mass, who was incidentally found to have a very FDG-avid fat-containing lesion in the omentum abutting the stomach. Subsequent endoscopic ultrasound-guided fine-needle aspiration confirmed hibernoma. The review of the literature shows the location is very unusual.
褐色脂肪瘤是起源于胎儿棕色脂肪组织残余的“假性脂肪瘤”。这些罕见的良性肿瘤可发生于全身，但最常见于大腿、肩部、背部和颈部，很少发生于腹腔、腹膜后、乳房、骨骼、阴囊和直肠周围。我们报告 1 例 58 岁女性，有已知的纵隔肿块，偶然发现胃旁大网膜有非常 FDG 摄取的含脂病变。随后的内镜超声引导下细针抽吸术证实为褐色脂肪瘤。文献复习显示该部位非常罕见。
