Role of technetium-99m pertechnetate scintigraphy in the management of extra-abdominal fibromatosis.
The purpose of this study was to investigate technetium-99m pertechnetate (Tc-99m) as a tumor-scanning agent in patients with extra-abdominal fibromatosis, and to establish the sensitivity of this type of scintigraphy. Eleven patients with extra-abdominal fibromatosis were studied: all but one having postsurgical recurrences. Of the 11 patients, diagnosed histologically, 5 underwent repeated Tc-99m scintigraphic follow-up examinations. The injected 370 MBq Tc-99m gave us an early scintigram within 10 min and a delayed one 2 h later. For adequate comparison, the region of interest (ROI) of the scintigram was placed over the tumor. The tumor-to-background (T/BG) count ratio was computed. Extra-abdominal fibromatoses, even recurrences, were demonstrated scintigraphically in both the early and the delayed phase, in all 11 patients. The average T/BG ratio was 2.11 in the early scintigram and 2.15 in the delayed one. The sensitivity and the specificity were both 100%. Tc-99m scintigraphy has proved useful in detecting extra-abdominal fibromatoses and in the follow-up of patients.
Terui
S
S
Division of Nuclear Medicine, National Cancer Center Hospital, Tokyo, Japan.
Terauchi
T
T
Abe
H
H
Muramatsu
Y
Y
Fukuma
H
H
Beppu
Y
Y
Yokoyama
R
R
D000328:Adult; D005260:Female; D005350:Fibroma / Q000000981:diagnostic imaging* / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging / Q000473:pathology; D011237:Predictive Value of Tests; D011877:Radionuclide Imaging; D012680:Sensitivity and Specificity; D013670:Sodium Pertechnetate Tc 99m; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology
D013670:Sodium Pertechnetate Tc 99m