[An unusual case of upper GI bleeding: esophageal cancer metastasis at a percutaneous endoscopic gastrostomy site--case report and review of the literature].

We present the case of a patient with an esophageal squamous cell carcinoma, who was treated primarily by radiotherapy. Due to dysphagia, the patient received a percutaneous endoscopic gastrostomy (PEG) without any sign of tumour at that time. Five months later the patient presented with an upper GI bleeding from a gastric ulcer, which histologically turned out to be a metastasis of the previously diagnosed squamous cell carcinoma. So-called "implantation metastases" at the percutaneous endoscopic gastrostomy site are rare and most of the cases have been described in patients with head and neck tumours. Moreover, the presentation as an upper GI bleed is very uncommon and needs the attention of both endoscopists as well as gastrointestinal oncologists. Clinicopathological features of this case with a brief review of the literature are presented.