![]() ![]() In the remaining 9 PRP-positive patients, there was no evidence of extramural invasion on the CT scans, but 5 patients showed evidence of invasion histologically. Of 27 PRP-positive patients in whom free air was seen surrounding the mass, 18 were diagnosed as having extramural invasion on CT, 15 of whom had histologic proof of invasion. Six PRP-negative patients in whom no free air was visualized in the retroperitoneal space surrounding the mass, were all assessed as having extramural invasion by CT scan and all had histologic evidence of invasion. Pelvic retroperitoneal pneumography (PRP) and pelvic computed tomography (CT) were performed on 33 patients with rectal carcinoma in order to compare the usefulness of the two diagnostic procedures in the preoperative assessment of local malignant extramural invasion. Kaibara, Nobuaki Kimura, Osamu Nishidoi, Hideaki Ikeguchi, Masahide Sugezawa, Akira Sumi, Kenichi Ohta, Michio Koga, Shigemasa International Nuclear Information System (INIS) ![]() Proposed Collection: Title: DERT Extramural Grantee Data Collection.Ī comparison of pelvic retroperitoneal pneumography and computed tomography in the assessment of extramural invasion of rectal carcinoma Comment Request DERT Extramural Grantee Data Collection SUMMARY: Under the provisions of Section 3507(a)(1. Information gained from this primary data collection will be used in. Its significance in colon cancer has not been extensively investigated.ħ7 FR 11559 - Submission for OMB Review Comment Request DERT Extramural Grantee Data Collection Extracapsular lymph node extension is an established poor prognostic indicator in many cancers. The American Joint Committee on Cancer staging system has designated extramural nodules as nonnodal disease and classified them as extensions of the T category in the sixth edition and as site-specific tumor deposits in the seventh edition. The status of resected lymph nodes in colon cancer determines prognosis and further treatment. The prognostic significance of extramural deposits and extracapsular lymph node invasion in colon cancer. ![]()
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