Endoscopic ultrasound-guided lauromacrogol injection for treatment of colorectal cavernous hemangioma: Two case reports

Figure 1 Enhanced total abdominal computed tomography showing that part of the rectum was thickened with edema and numerous tiny calcification foci indicative of phleboliths. A: Plain scan; B: Enhancement scan; C: Venous scan.

Figure 2 Colonoscopic and endoscopic ultrasound findings. A and B: Colonoscopy showed blue–red elevated nodular lesions; C: Endoscopic ultrasound (EUS) of rectum showed a vascular signal in the submucosa; D: EUS with color Doppler confirmed the venous nature of the outflowing vessel.

Figure 3 Endoscopic ultrasonography findings. A: Multiple bluish-purple nodules limited to proximal sigmoid; B: Nonechoic vascular signal in the submucosa of the anterior wall of the sigmoid, and a minute septum-like structure was visible, with high echo spots in the partitions; C: Doppler ultrasound detected small internal strips of blood flow; D: SonoVue imaging showed small internal enhancement in the anechoic areas.

Figure 4 Endoscopic ultrasound after lauromacrogol treatment. A: Endoscopic ultrasound (EUS) showed hyperechoic filling in the vascular lumen after injection. Elevated vascular mass was relieved after EUS-guided lauromacrogol injection; B: EUS with color Doppler US showed that the blood flow signal disappeared; C: First scan; D: Second scan; E: Third scan.

Figure 5 Endoscopic examination after lauromacrogol treatment. A and B: The size and scope of hemangiomas in each case were significantly reduced; C: There were only two small cavernous hemangiomas. Ulcers and scars were seen in the hemangioma areas after three sclerotherapy injections.