Abstract
Radiographs of 12 carcinoid tumors of the rectum were reviewed and compared with pathologic findings. There was a good correlation between the radiologic and pathologic findings with respect to tumor invasion and extent. Nine tumors that radiologically presented a smooth round defect less than 2.0 cm in diameter did not invade the muscular layer and did not metastasize. Three tumors that presented a deep crater with an irregular edge greater than 2.0 cm were found to have invaded the muscular layer and metastasized to the lymph nodes or the liver. The double-contrast enema showed an excellent detection rate; no lesion was missed by it.
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Sato, T., Sakai, Y., Sonoyama, A. et al. Radiologic spectrum of rectal carcinoid tumors. Gastrointest Radiol 9, 23–26 (1984). https://doi.org/10.1007/BF01887795
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DOI: https://doi.org/10.1007/BF01887795