Cancer of the gastrointestinal tract. Histopathology and cytology in detection.
D000230:Adenocarcinoma / Q000175:diagnosis / Q000473:pathology*; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000473:pathology*; D002299:Cardia; D003584:Cytological Techniques; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D004945:Esophagoscopy; D005336:Fiber Optic Technology; D006801:Humans; D008722:Methods; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000473:pathology*