technetium-tc-99m-sulfur-colloid and Hemangioma

Topics: Breast Neoplasms; Hemangioma; Humans; Liver Abscess; Liver Cirrhosis; Liver Diseases; Liver Neoplasms; Organotechnetium Compounds; Phytic Acid; Radiation Injuries; Radionuclide Imaging; Radiotherapy; Sulfur; Technetium; Technetium Tc 99m Sulfur Colloid

Topics: Hemangioma; Humans; Liver Neoplasms; Technetium Tc 99m Sulfur Colloid; Tomography, Emission-Computed, Single-Photon; Tomography, X-Ray Computed

Topics: Adult; Erythrocytes; Hemangioma; Humans; Liver Neoplasms; Male; Neoplasms, Multiple Primary; Radionuclide Imaging; Technetium Tc 99m Sulfur Colloid

The aim of the study was the estimation of diagnostic importance of the hepatic blood pool tomoscintigraphy (SPECT) and planar scintigraphy in patients investigated under suspicion of the liver hemangioma. In the diagnostic procedure the correlation between radiocolloidal scintigraphy, blood pool planar scintigraphy (early and late) and SPECT was made. Sixty-seven patients with focal lesions in the liver were investigated. The blood pool scintigraphy was made after application of traser dose of 99mTc and equilibration of tagged red blood cells in circulation. The planar scintigraphy was made 20 min after the red cells tagging and again 2 hours later (early and late scintigrams). SPECT was also applied to make the diagnostic procedure more accurate. From 31 hemangiomas detected by SPECT only 19.4% were clearly visible by planar scintigraphy. The diagnostic of very small hemangiomas is enabled by SPECT too.

Topics: Adult; Aged; Aged, 80 and over; Erythrocytes; Female; Hemangioma; Humans; Liver Neoplasms; Male; Middle Aged; Technetium Tc 99m Sulfur Colloid; Tomography, Emission-Computed, Single-Photon

Topics: Erythrocytes; Hemangioma; Humans; Liver Neoplasms; Male; Middle Aged; Radionuclide Imaging; Technetium Tc 99m Sulfur Colloid; Time Factors

Fatty infiltration of the liver may cause a range of focal abnormalities on hepatic sonography which may simulate hepatic nodular lesions. Discrete deposits of fat or islands of normal tissue which are uninvolved by fatty infiltration may stand out as potential space-occupying lesions on the sonograms. Twelve patients with such focally abnormal ultrasound images were referred for liver scintigraphy with 133Xe and 99mTc colloidal SPECT studies to clarify the issue. These examinations helped identify, in nine of 12 patients, the innocent nature of the sonographic abnormalities which were simply related to the fat deposition process. Further, [99mTc]RBC scans defined the additional pathologic process in three patients in whom actual space-occupying lesions were indeed present in the liver. Scintigraphy has an important role to play in the understanding of focal hepatic ultrasound abnormalities particularly in unsuspected hepatic steatosis.

Topics: Aged; Aged, 80 and over; Breast Neoplasms; Erythrocytes; Fatty Liver; Female; Hemangioma; Humans; Liver; Liver Neoplasms; Male; Middle Aged; Technetium; Technetium Tc 99m Sulfur Colloid; Tomography, Emission-Computed; Ultrasonography; Xenon Radioisotopes

The evaluation of splenomegaly in a patient with a consumptive coagulopathy included a liver-spleen scan, an abdominal sonogram, and an abdominal computed tomographic scan, which demonstrated an enlarged spleen with a diffuse parenchymal textural abnormality. A diffuse hemangiomatous pattern was present on splenic angiography. A splenectomy was performed and splenic hemangiomatosis was confirmed. The radiographic findings in this rare entity are presented and discussed.

Topics: Angiography; Child, Preschool; Female; Hemangioma; Humans; Radionuclide Imaging; Splenic Neoplasms; Technetium Tc 99m Sulfur Colloid; Tomography, X-Ray Computed; Ultrasonography

The difficulty of clinical and radiographical diagnosis of hepatoma is discussed. A case of hepatoma is reported. Both the primary tumor and distant metastases showed strong avidity for 99mTc-HIDA, which normally is concentrated by parenchymal cells of the liver. The potential of using 99mTc-HIDA for the noninvasive investigation of patients suspected of having hepatoma is discussed. The association between tumor avidity for 99mTc-HIDA and the bile-forming ability of tumor cells is of interest.

Topics: Adult; Carcinoma, Hepatocellular; Diagnosis, Differential; Gallium Radioisotopes; Hemangioma; Humans; Imino Acids; Iodine Radioisotopes; Liver; Liver Neoplasms; Lung Neoplasms; Lymphoma; Male; Radionuclide Imaging; Rose Bengal; Sulfur; Technetium; Technetium Tc 99m Lidofenin; Technetium Tc 99m Sulfur Colloid; Tomography, X-Ray Computed; Ultrasonography

Topics: Adult; Aged; Carcinoma, Hepatocellular; Colloids; Cysts; Female; Hemangioma; Humans; Liver Abscess; Liver Cirrhosis; Liver Diseases; Liver Neoplasms; Male; Radionuclide Imaging; Sulfur; Technetium; Technetium Tc 99m Sulfur Colloid

Fourteen patients with hepatic hemangiomas were evaluated by Tc-99m colloid scintigraphy and Tc-99m RBC angiography, including flow studies and early and delayed static studies. On colloid scintigraphy, the liver appeared enlarged, with single or multiple focal defects. During the flow and early static Tc-99m RBC studies, the lesions showed poor perfusion and were filled only partially or not at all. Delayed Tc-99m RBC studies demonstrated the whole extent of the lesion and all the lesions when multiple hemangiomas were present. A flow study showing decreased perfusion and a late blood-pool study showing increased local blood volume appear characteristic of hemangiomas. Liver biopsy should not be attempted in such cases.

Topics: Angiography; Hemangioma; Humans; Liver; Liver Neoplasms; Perfusion; Radionuclide Imaging; Regional Blood Flow; Sulfur; Technetium; Technetium Tc 99m Sulfur Colloid