J Korean Radiol Soc.  2004 Mar;50(3):179-183. 10.3348/jkrs.2004.50.3.179.

Paraquat Induced Lung Injury: Long-term Follow-up of HRCT

• Kim YT
• Kim HC
• Bae WK
• Kim IY
• Im HH

• KMID: 2199845
• DOI: http://doi.org/10.3348/jkrs.2004.50.3.179

Abstract

PURPOSE: To determine the long-term follow-up CT findings of paraquat-induced lung injury.
MATERIALS AND METHODS
Six patients who ingested paraquat underwent sequential follow-up CT scanning during a period of at least six months, and the results were analysed. Scans were obtained 1-6 (mean, 3.3) time during a 7-84 (mean, 25.7) months period, and the findings at 1-2 months, 3-12 months, 1-2 years, 2-3 years, and more than above 7 years after poisoning were analyzed.
RESULTS
We observed irregular-shaped areas of consolidation with traction bronchiectasis at 1-2 months (5/5), irregular-shaped consolidation and ground-glass opacity (5/5) at 3-12 months, and irregular-shaped consolidations/ ground-glass opacity (4/5) and focal honeycombing (1/5) one year later. In the same patients, follow-up CT scans showed that some areas of focal consolidation could not be visualized and the radio-opacity of the lesions had decreased.
CONCLUSION
The HRCT findings of paraquat-induced lung injury were irregular shaped areas of consolidation 1-2 months after ingestion, and irregular-shaped consolidation and ground-glass opacity or focal honeycombing 3-12 months later. At this thim slight improvement was observed.

Keyword

Paraquat, HRCT; Paraquat, Lung; Lung, CT

MeSH Terms

Bronchiectasis
Eating
Follow-Up Studies*
Humans
Lung Injury*
Lung*
Paraquat*
Poisoning
Tomography, X-Ray Computed
Traction
Paraquat