sentence: benign tumors : malignant tumors : other complications a diverticulum inside a meckel 's diverticulum ( daughter diverticula ) stones and phytobezoar ( a bezoar of vegetable fibers ) in meckel 's diverticulum vesicodiverticular fistula notable patients major league baseball player chan ho park , then a pitcher with the san diego padres ( currently with the hanwha eagles ) , suffered multiple episodes during the 2006 season in which mysterious internal bleeding caused him to lose a significant fraction of his blood volume .