#alimentary_tract_smear  any of several cytologic smears obtained from different parts of the alimentary tract; obtained by specialized lavage techniques and used mainly to diagnose cancer in those parts
  supertype:  cytologic_smear__cytologicsmear__smear__cytosmear  a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
  subtype:  esophageal_smear  alimentary tract smear of material obtained from the esophagus
  subtype:  gastric_smear__gastricsmear  alimentary tract smear of material obtained from the stomach
  subtype:  oral_smear  alimentary tract smear of material obtained from the mouth
  subtype:  paraduodenal_smear__duodenal_smear  alimentary tract smear of material obtained from the duodenum

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