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What is "Cork screw appearance" is characteristic of? and explain in detail?
ANSWER: (C) Diffuse esophageal spasmREF: Wofganag 5th e p. 846/748SignDiseaseRat tail appearanceCarcinoma esophagusBird beak appearanceAchalasiaBeak sign/ double track/ tram trackHyper trophic pyloric stenosisMedusa head colonies on CTRound wormPincer/daw/coiled spring/target/ meniscus signIntussceptionCoffee bean signSigmoid volvulousLead pipe appearanceUlcerative colitisString of kantor/bulTs eyeChron's diseaseThumb printing signIschemic colitisSaw tooth appeance on barium enemaDiverticulosisApple core signCarcinoma colonCork scretv appearanceDiffuse esophageal spasmString signHypertrophic pyloric stenosis