[A case of metastatic malignant melanoma mimicking pancreatic pseudocyst].

A 74-year-old male was admitted to our hospital complaining of an abdominal mass. Abdominal US and ERCP disclosed a cyst in the pancreas, communicating with a crater in the stomach. Spontaneous rupture of a pancreatic pseudocyst into the stomach was considered.

A case of juxtaglomerular cell tumor diagnosed preoperatively.

A case of juxtaglomerular cell tumor, the fourth case in the world diagnosed preoperatively, was reported. Neither strict sodium restriction nor loading of upright position increased a grade of hyperreninemia observed at recumbant position on ordinary diet, but Pald elevated in response to them. Abnormal glucose tolerance was considered to be due to hypopotassemia.