Korean J Occup Environ Med.
1998 May;10(2):290-298.
Three Cases of High Signal Intensity by Brain Magnetic Resonance Imaging in CO2 arc Welders
- Affiliations
-
- 1Department of Occupational Medicine, Pohang Sunrin Hospital, Korea.
- 2Department of Radiology, Pohang Sunrin Hospital, Korea.
- 3Department of Neurology, Pohang Sunrin Hospital, Korea.
- 4Department of Preventive Medicine, College of Medicine, Dongguk University, Korea.
- 5Department of Preventive Medicine, College of Medicine, Yeungnam University, Korea.
- 6Department of Preventive Medicine, College of Medicine, Dong-A University, Korea.
- 7Department of Industrial Medicine Research Institute, College of Medicine, Dong-A University, Korea.
Abstract
- We experienced three cases of high signal intensity observed by Brain Magnetic Resonance Imaging in CO2 arc welders of steel-frame manufacturing industry. Case 1 was a 35 years old man who has been an CO2 arc welder for 10 years, admitted a sudden onset of tonic clonic seizure. He complained fever, chilling and myalgia since 3 days before admission. On admission, in the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 5.17 microgram/dL, 22.00 microgram/l and 31.25 ppm respectively. Case 2 was a 35 years old man who has been an CO2 arc welder for 20 years. On admission, He complained fatigue, numbness and weakness of extremities, and decrease of libido. In the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 6.34 microgram/dL, 14.62 microgram/l and 57.87 ppm respectively. In neurologic examination, Palmo-mentis reflex and Myerson sign were observed. Case 3 was a 33 years old man who has been an CO2 arc welder for 16 years. On admission, He complainer loss of appetite, numbness of extremities, fatigue and decrease of attention. In the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 5.14 microgram/dL, 13.79 microgram/l and 50.08 ppm respectively. In neurologic examination, Myerson sign was observed. In brain magnetic resonance imaging, T1WI showed symmetrical high signal intensity in basal ganglia and midbrain of three cases. Authors argued that they were developed by manganese exposure, and we considered that follow up study would be necessary.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Study on Clinical Significance of High Signal Intensity by Brain Magnetic Resonance Imaging in Mild Steel/Arc Welders (Clinical Significance of High Signal Intensity by Brain MRI in Welders)
- A study on manganese health hazards among experienced welders
- An Association between Brain MRI and Neurologic Findings in Welders Exposed to Manganese Fume
- The Significance of Increased Signal Intensity in MR Imaging among Male Welders
- Usefulness of Fluid Attenuated Inve rsion Re c overy(FLAIR) Image
