Figure 2.

Gastroscopy and ultrasonography of esophagus and stomach. (A) Gastroscopy showed a black tumor that led to esophageal narrowing. It was located within the esophagus, 22 cm from the incisors. (B) Gastroscopy showed a 2.0 cm ulcer observed in the posterior wall of the lower part of the stomach, and the surrounding mucosa with nodular changes. (C) Endoscopic ultrasonography detected abundant blood flow signals at the lesion. Adjacent to the lesions, similar black satellite lesions could be seen.