直肠周围肿物的经直肠超声磁共振成像融合活检
Transrectal Ultrasound MRI-Fusion Biopsy of Perirectal Mass.
作者信息
Li Virginia, Mclemore Elisabeth, Attaluri Vikram, Parker Rex, Finley David S
机构信息
Department of Urology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, USA.
Department of Colorectal Surgery, Kaiser Permanente Los Angeles Medical Center, Los Angeles, California, USA.
出版信息
J Endourol Case Rep. 2020 Dec 29;6(4):366-369. doi: 10.1089/cren.2020.0016. eCollection 2020.
This case report describes the novel use of ultrasound-guided MRI-fusion biopsy to sample an extraluminal perirectal mass. This is a 64-year-old man with a history of pT3N2b mucinous adenocarcinoma of the right colon with metastatic disease to the mesocolic lymph nodes. Two years after initial resection he was found on restaging CT to have a mass measuring ∼4.0 × 4.8 cm superior to the seminal vesicles. Fluorodeoxyglucose (FDG)-positron emission tomography (PET) showed a moderately FDG avid soft tissue mass interposed between the prostate and the rectum. Multiparametric MRI revealed a 6.2 × 4.6 × 2.8 cm heterogeneous lobulated T2 hyperintense mass with enhancement just superior to the seminal vesicles. This mass was unable to be viewed using sigmoidoscopy. Using UroNAV technology, we were able to biopsy the mass in the clinic setting. Biopsy was confirmed as recurrent mucinous adenocarcinoma.
本病例报告描述了超声引导下磁共振成像融合活检在对直肠周围腔外肿块进行取样方面的新应用。这是一名64岁男性，有右半结肠pT3N2b黏液腺癌病史，已发生中结肠淋巴结转移。初次切除术后两年，复查CT发现精囊上方有一个大小约4.0×4.8 cm的肿块。氟脱氧葡萄糖（FDG）正电子发射断层扫描（PET）显示前列腺和直肠之间有一个FDG摄取中等的软组织肿块。多参数磁共振成像显示精囊上方有一个6.2×4.6×2.8 cm的不均匀分叶状T2高信号肿块，有强化。乙状结肠镜检查无法看到这个肿块。使用UroNAV技术，我们能够在临床环境中对该肿块进行活检。活检证实为复发性黏液腺癌。
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