title: Diagnosis of submucosal tumor by injecting a water soluble contrast medium: development pattern and growing of tumors.
abstract: With the application of our endoscopical method of contrasted X-ray imaging, gastric submucosal tumors were studied with chief regards to their modes of growing up and patterns of development. It has become known that, of extra-gastric developing tumors, larger ones tend to show Pattern IVa and smaller ones Pattern IVb. Generally, the tumors showed a tendency of becoming larger in older patients. Periodical checking disclosed about 15% of the tumors growing larger with the lapse of time. It has been surmised that as tumors grow up, their development possibly turns from intra-gastric to intramural and mingled in pattern. Their modes of growing could be classified as follows: Abruptly growing large at a certain time and then remaining without notable changes, step-by-step enlarging, and gradually growing up straight forwardly with years.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001707:Biopsy, Needle; D003287:Contrast Media; D004724:Endoscopy; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012995:Solubility; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014867:Water
chemical_list: D003287:Contrast Media; D014867:Water