A 23-year-old woman with history of eating disorder, complains of vomiting, nausea & severe abdominal pain. Physical examination shows abdominal distension and constipation. An X-ray film of the abdomen reveals air-fluid levels and a hyperlucent shadow at the epigastric area. The material obstructing the gastrointestinal tract is removed surgically and shown. Which of the following is the most likely diagnosis?
Diveiculum of the stomach Gastric lymphoma Phytobezoar Trichobezoar