KANSAS CITY—The White Sox are hopeful that Adam Dunn won’t miss much time after an emergency appendectomy early Wednesday.The initial indication is that Dunn may miss less than a week. The White Sox announced on their Twitter account that Dunn will miss “up to five games.” Matt Holliday of the Cardinals had his appendix out last week, and the Cardinals are similarly hopeful of a quick return. Last September, Andres Torres of the Giants missed 12 days after an appendectomy.Dunn is off to a decent start after signing with the White Sox as a free agent last winter. In four games, he has a 1.045 OPS, with one home run and 5 RBI.