After a 30-day backpacking trip, a patient has pain over the…

After a 30-day backpacking trip, a patient has pain over the lateral aspect of the shoulder. Upon examination of the patient, the orthotist notes weakness of elbow flexion and shoulder abduction on the same side as the pain. A lesion at which level of the following sites is MOST likely the source of the symptoms?

A 67-year-old man has had a 4-kg weight loss and nausea for…

A 67-year-old man has had a 4-kg weight loss and nausea for the past 6 months.  The upper endoscopy shows that the entire gastric mucosa is eroded and has an erythematous cobblestone appearance.  The gastrectomy specimen shows small and shrunken stomach with a rigid thickened wall.  Which of the following is most likely the diagnosis?