A 30 year old female patient presents with non progressive dysphagia, for both solids and liquids. The characteristic finding on baruim swallow that will confirm the probable diagnosis is:
Dilated esophagus with narrow lower end (rat tail esophagus) Multiple sacculations and pseudodiveicula (corkscrew esophagus) Narrow and irregular esophageal lumen Stricture ulcer in the esophagus