sodium-pertechnetate-tc-99m and Struma-Ovarii

Topics: Diagnosis, Differential; Female; Humans; Incidental Findings; Middle Aged; Multimodal Imaging; Positron-Emission Tomography; Radioisotopes; Sodium Pertechnetate Tc 99m; Struma Ovarii; Tomography, X-Ray Computed

A case of hyperthyroid disease after total thyroidectomy is reported. An initial scintigraph with Tc-99m sodium pertechnetate confirmed the absence of uptake in the neck. The view of the pelvis revealed a rounded area of increased uptake on the left, near the sacroiliac joint (results of bone scintigraphy were negative). A wholebody scan with iodine-131 confirmed a struma ovarii that was bilateral, which occurs in 5% to 10% of patients with this condition.

Topics: Aged; Diagnosis, Differential; Female; Humans; Hyperthyroidism; Iodine Radioisotopes; Ovarian Neoplasms; Radionuclide Imaging; Radiopharmaceuticals; Sodium Pertechnetate Tc 99m; Struma Ovarii; Thyroidectomy

A rare case of struma ovarii producing hyperthyroidism in a postmenopausal woman is reported. The ovarian tumor demonstrated uptake of both [99mTc]pertechnetate and 131I, allowing preoperative diagnosis of the condition. In females with unexplained hyperthyroidism and low 131I uptake by the cervical thyroid gland, imaging of the pelvis should be considered.

Topics: Aged; Aged, 80 and over; Female; Humans; Hypertension; Iodine Radioisotopes; Menopause; Ovarian Neoplasms; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Struma Ovarii