ABSTRACT
An area of photon deficiency in both planar and single photon emission computed tomography (SPECT) images of the liver using 99mTc-Sulfur Colloid was found to be due to a dilated hepatic vein.
Subject(s)
Hepatic Veins/pathology , Liver/diagnostic imaging , Tomography, Emission-Computed , Dilatation, Pathologic , Humans , MaleSubject(s)
Blood Transfusion , Erythroblastosis, Fetal/diagnostic imaging , Gallium Radioisotopes , Infant, Premature, Diseases/diagnostic imaging , Abscess/diagnostic imaging , Blood Transfusion, Intrauterine , Erythroblastosis, Fetal/therapy , Humans , Infant, Newborn , Infant, Premature, Diseases/therapy , Radionuclide ImagingABSTRACT
Bone scintigraphy proved valuable in diagnosing McCune-Albright's syndrome in a 6-year-old girl by detecting multiple, non-symptomatic foci in the skull, axial skeleton and in the extremities. Subsequent roentgen examination showed abnormal bone structure in the affected areas, consistent with fibrous dysplasia.
Subject(s)
Bone and Bones/diagnostic imaging , Fibrous Dysplasia of Bone/diagnostic imaging , Fibrous Dysplasia, Polyostotic/diagnostic imaging , Child , Female , Humans , Radionuclide Imaging , Technetium Tc 99m MedronateABSTRACT
Gallium imaging may play an important role in both initial evaluation and in follow-up in patients with metastatic melanoma. We present a case where the patient had gallium-avid metastatic melanoma. SPECT proved helpful in the initial evaluation.
Subject(s)
Abdominal Neoplasms/secondary , Gallium Radioisotopes , Melanoma/secondary , Spinal Neoplasms/secondary , Tomography, Emission-Computed , Abdominal Neoplasms/diagnostic imaging , Humans , Male , Melanoma/diagnostic imaging , Middle Aged , Spinal Neoplasms/diagnostic imagingABSTRACT
The three-phase bone scan has been reported of value in the diagnosis of osteomyelitis. The use of a radionuclide angiogram, an immediate postinjection "blood pool" image, and 2 to 3 hour delayed image have been useful in separating nonosseous inflammatory disease from osteomyelitis. However, dependence on increased blood flow and focal hyperemia for this diagnosis may limit the use of the study if other processes are shown to produce similar results. To identify limitations of the three-phase bone scan we studied 14 patients with metastatic bone disease and nine patients with Paget's disease. Blood flow results showed no increase in three of 14 patients with metastases, intermediate increase in seven of 14 patients with metastases and two of nine patients with Paget's, and intense increase in four of 14 patients with metastases and seven of nine patients with Paget's. All patients showed increased focal activity in the immediate "blood pool" and delayed images. We conclude that because of increased flow Paget's disease may be difficult to separate from osteomyelitis. However, metastatic disease can often be differentiated on the basis of quantitative focal hyperemia. The three-phase bone scan remains of value in the diagnosis of osteomyelitis, but other diseases of bone must be included in the differential diagnosis.
