RESUMO
Leiomyoma and gastrointestinal stromal tumours take fi rst place among mesenchymal tumours of the oesophagus, where tumours of peripheral nerve origin are rarely seen. Schwann and enterochromaffi n cell proliferation occur in neurogenous hyperplasia, an entity observed in the appendix which has not been reported in the oesophagus in the medical literature. Oesophagogastroscopy of a 58-year-old woman showed linear erosions and nodularity at the gastroesophageal junction. The microscopic examination of biopsies taken from this area revealed proliferation of spindle cells with oval-round nuclei forming focal fascicular arrangement in the lamina propria. These cells stained positive for synaptophysin and S100-protein, while immunohistochemistry for smooth muscle actin and CD117 were negative. The case was diagnosed as neurogenous hyperplasia with these fi ndings. Control endoscopic biopsies showed no evidence of neurogenous hyperplasia. Neurogenous hyperplasia can be considered as a distinct entity which might also be observed in the oesophagus as in the appendix.
RESUMO
There have been several published reports on metastatic lesions in the stomach, but the number of cases have been limited due to the low frequency of the condition. Metastatic lesions in the stomach are usually asymptomatic. A 55-year-old man with known metastatic lung adenocancer exhibited epigastric pain, hematemesis, and melena. A bleeding, ulcerated gastric metastasis was found and treated with endoscopic therapy and omeprazole.