sodium-pertechnetate-tc-99m and Fibroma

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.

Topics: Adult; Female; Fibroma; Follow-Up Studies; Humans; Magnetic Resonance Imaging; Male; Neoplasm Recurrence, Local; Predictive Value of Tests; Radionuclide Imaging; Sensitivity and Specificity; Sodium Pertechnetate Tc 99m; Soft Tissue Neoplasms

Topics: Adolescent; Adult; Child; Female; Fibroma; Humans; Male; Middle Aged; Radiography; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Soft Tissue Neoplasms; Technetium