Malignant external otitis: early scintigraphic detection
Pseudomonas otitis externa in elderly diabetics may extend aggressively to adjacent bone, cranial nerves, meninges, and vessels, leading to a clinical diagnosis of ''malignant'' external otitis. Early diagnosis is necessary for successful treatment. This study compares the findings of initial radiographs, thin-section tomography of temporal bone, CT scans of head and neck, technetium-99m methylene diphosphonate (MDP) and gallium-67 citrate scintigraphy, and single-photon emission computed tomography (SPECT) for detection of temporal bone osteomylitis in ten patients fulfilling the clinical diagnostic criteria of malignant external otitis. Skull radiographs were negative in all of the eight patients studied. Thin-section tomography was positive in one of the seven patients studied using this modality. CT scanning suggested osteomyelitis in three of nine patients. Both Tc-99m and Ga-67 citrate scintigraphy were positive in 10 of 10 patients. These results suggest that technetium and gallium scintigraphy are more sensitive than radiographs and CT scans for early detection of malignant external otitis.
- Research Organization:
- Mount Sinai Medical Center, New York
- OSTI ID:
- 5024360
- Journal Information:
- Radiology; (United States), Journal Name: Radiology; (United States) Vol. 150:2; ISSN RADLA
- Country of Publication:
- United States
- Language:
- English
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550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
AUDITORY ORGANS
BACTERIA
BACTERIAL DISEASES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARBOXYLIC ACID SALTS
CITRATES
COMPUTERIZED TOMOGRAPHY
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIABETES MELLITUS
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
EMISSION COMPUTED TOMOGRAPHY
ENDOCRINE DISEASES
GALLIUM 67
GALLIUM ISOTOPES
HOURS LIVING RADIOISOTOPES
INFECTIOUS DISEASES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
METABOLIC DISEASES
MICROORGANISMS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANS
PATIENTS
PHOSPHONATES
PSEUDOMONAS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
SENSE ORGANS
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
SKELETON
TECHNETIUM 99
TECHNETIUM ISOTOPES
TOMOGRAPHY
YEARS LIVING RADIOISOTOPES