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Staging of carcinoma of the cervix by MRI
BODY
-- PELVIS
PREDICTING DEPTH OF INVASION OF ENDOMETRIAL CARCINOMA BY MRI Marcia C. Fishmanl, M.D., Harry L. Stein', M.D., John L. Lovecchio2, M.D. Departments of Radiology1 and Obstetrics and Gynecology2, North Shore University Hospital, Cornell University Medical College, Manhasset, New York MRI on the 0.6 tesla superconducting magnet accurately demonstrated the depth of myometrial invasion on T2 weighted images in 18 of 24 cases of surgically proved endometrial carcinoma. Twelve cases had full thickness invasion. Two cases had invasion deep to the stratum basale. Four lesions were confined to the endometrium. MRI was superior to CT scan in defining the location and extent of adenocarcinoma in 14 of 24 cases. Associated findings included parametrial extension, adenopathy, and bladder involvement. Three cases status post TAH-BSO had recurrent or metastatic disease. MRI offers the unique advantage of visualizing endometrium separate from qyometrium. Relaxation rate differences afford characterization of pathologic tissue such as depth of invasion of endometrial carcinoma. MRI is superior to CT scan for localization of uterine malignancy within pelvic viscera.
(Oral Presentation)
THE VALUE OF MRI IN EVALUATING PERIRECTAL DISEASE Marcia C. Fishman, M.D., Harry L. Stein, M.D., Bruce Javors, M.D., James Naidich, M.D. Department of Radiology, North Shore University Hospital, Cornell University Medical College, Manhasset, New York Twelve cases of perirectal disease were studied on a 0.6 tesla superconducting magnet. MRI with its multiplanar imaging capability accurately defined the location and extent of perirectal lesions including primary rectal carcinomas. Posterior extension of tumor from cervical carcinoma (three cases), and ovarian carcinoma (one case) was detected. A huge perirectal arteriovenous malformation was well documented by MRI, but was mistaken for recurrent endometrial carcinoma by CT scan. Inflammatory bowel disease was detected but findings were non-specific. MRI was particularly useful in providing not only anatomic but also diagnostic information in perirectal disease and holds great promise for complete staging of pelvic neoplasms.
(Oral Presentation)
STAGING OF CARCINOMA OF THE CERVIX BY MRI Marcia C. Fishman', M.D., Harry L. Stein', M.D., John L. Lovecchio2, M.D. Departments of Radiology1 and Obstetrics and Gynecology2, North Shore University Hospital, Cornell University Medical College, Manhasset, New York Twenty five patients with carcinoma of the cervix were studied on a 0.6 tesla superconducting magnet. HRI was superior to CT scan in 15 of 19 cases with CT correlation for localizing the primary lesion to the cervix rather than the uterus. Two patients with stage Ib occult cervical carcinoma showed no definite focal lesions by MRI. MRI correctly showed parametrial extension (six cases), rectal invasion (two cases), bladder invasion (three cases), and vaginal extension of tumor (two cases), but is probably less reliable than CT scan for detection of adenopathy due to lack of bowel contrast agents. On T2 weighted images, ten cervical carcinomas were of intense signal and seven cases were mixed in signal. Nine patients had an enlarged uterus with a distended endometrial cavity. MRI was more useful than CT scan for localization of tumor within pelvic viscera.
134
(Oral Presentation)
-- PELVIS
PREDICTING DEPTH OF INVASION OF ENDOMETRIAL CARCINOMA BY MRI Marcia C. Fishmanl, M.D., Harry L. Stein', M.D., John L. Lovecchio2, M.D. Departments of Radiology1 and Obstetrics and Gynecology2, North Shore University Hospital, Cornell University Medical College, Manhasset, New York MRI on the 0.6 tesla superconducting magnet accurately demonstrated the depth of myometrial invasion on T2 weighted images in 18 of 24 cases of surgically proved endometrial carcinoma. Twelve cases had full thickness invasion. Two cases had invasion deep to the stratum basale. Four lesions were confined to the endometrium. MRI was superior to CT scan in defining the location and extent of adenocarcinoma in 14 of 24 cases. Associated findings included parametrial extension, adenopathy, and bladder involvement. Three cases status post TAH-BSO had recurrent or metastatic disease. MRI offers the unique advantage of visualizing endometrium separate from qyometrium. Relaxation rate differences afford characterization of pathologic tissue such as depth of invasion of endometrial carcinoma. MRI is superior to CT scan for localization of uterine malignancy within pelvic viscera.
(Oral Presentation)
THE VALUE OF MRI IN EVALUATING PERIRECTAL DISEASE Marcia C. Fishman, M.D., Harry L. Stein, M.D., Bruce Javors, M.D., James Naidich, M.D. Department of Radiology, North Shore University Hospital, Cornell University Medical College, Manhasset, New York Twelve cases of perirectal disease were studied on a 0.6 tesla superconducting magnet. MRI with its multiplanar imaging capability accurately defined the location and extent of perirectal lesions including primary rectal carcinomas. Posterior extension of tumor from cervical carcinoma (three cases), and ovarian carcinoma (one case) was detected. A huge perirectal arteriovenous malformation was well documented by MRI, but was mistaken for recurrent endometrial carcinoma by CT scan. Inflammatory bowel disease was detected but findings were non-specific. MRI was particularly useful in providing not only anatomic but also diagnostic information in perirectal disease and holds great promise for complete staging of pelvic neoplasms.
(Oral Presentation)
STAGING OF CARCINOMA OF THE CERVIX BY MRI Marcia C. Fishman', M.D., Harry L. Stein', M.D., John L. Lovecchio2, M.D. Departments of Radiology1 and Obstetrics and Gynecology2, North Shore University Hospital, Cornell University Medical College, Manhasset, New York Twenty five patients with carcinoma of the cervix were studied on a 0.6 tesla superconducting magnet. HRI was superior to CT scan in 15 of 19 cases with CT correlation for localizing the primary lesion to the cervix rather than the uterus. Two patients with stage Ib occult cervical carcinoma showed no definite focal lesions by MRI. MRI correctly showed parametrial extension (six cases), rectal invasion (two cases), bladder invasion (three cases), and vaginal extension of tumor (two cases), but is probably less reliable than CT scan for detection of adenopathy due to lack of bowel contrast agents. On T2 weighted images, ten cervical carcinomas were of intense signal and seven cases were mixed in signal. Nine patients had an enlarged uterus with a distended endometrial cavity. MRI was more useful than CT scan for localization of tumor within pelvic viscera.
134
(Oral Presentation)