Assessment of gallium-67 scanning in pulmonary and extrapulmonary sarcoidosis
Gallium-67 scans have been widely employed in patients with sarcoidosis as a means of indicating alveolitis and the need for corticosteroid therapy. Observation of 32 patients followed 3 or more years after gallium scans showed no correlation between findings and later course: of 10 patients with pulmonary uptake, 7 recovered with minor residuals; of 18 patients with mediastinal of extrathoracic uptake, 10 had persistent or progressive disease; of 4 patients with negative initial scans, 2 had later progression. The value of gallium-67 scans as an aid to diagnosis was studied in 40 patients with extrapulmonary sarcoidosis. In 12 patients, abnormal lacrimal, nodal, or pulmonary uptake aided in selection of biopsy sites. Gallium-67 scans and serum ACE levels were compared in 97 patients as indices of clinical activity. Abnormal gallium-67 uptake was observed in 96.3% of the tests in active disease, and ACE level elevation occurred in 56.3%. In 24 patients with inactive or recovered disease, abnormal gallium-67 uptake occurred in 62.5% and ACE level elevation in 37.5%. Gallium-67 scans have a limited but valuable role in the diagnosis and management of sarcoidosis.
- OSTI ID:
- 5016097
- Journal Information:
- Ann. N.Y. Acad. Sci.; (United States), Journal Name: Ann. N.Y. Acad. Sci.; (United States); ISSN ANYAA
- Country of Publication:
- United States
- Language:
- English
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62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BODY
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
GALLIUM 67
GALLIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
LUNGS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATHOGENESIS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
SCINTISCANNING
UPTAKE
USES