About 90% of Stage 2 patients survive five years beyond the diagnosis.
Oral steroids may be of benefit for patients with Stage 2 and 3 disease with moderate to severe or progressive symptoms or CXR changes.
Nearly 80 percent of patients with Stage 2 colon cancer do not suffer a relapse after surgery, said Dr. David J. Kerr of the University of Oxford, the lead investigator.
Stage 2: Full thickness macular hole, can opener tear or pseudooperculum, 全层黄斑裂孔，可为开罐式撕开或假*包盖，裂孔直径小于400微米。
