Hong Eo, Presenter: Nothing to Disclose

So Young Yoo MD, Abstract Co-Author: Nothing to Disclose

Ji Hye Kim MD, PhD, Abstract Co-Author: Nothing to Disclose

To retrospectively evaluate the high resolution computed tomographic (HRCT) findings of chronic pneumonitis of infancy (CPI)

The institutional review boards approved this study and waived the requirement for informed consent. HRCT scans were retrospectively reviewed in four patients (two boys, two girls; mean age, 5months; age range, 16days to 9 months) with pathologically proved CPI. HRCT findings were evaluated with regard to the distribution of ground glass opacity (GGO), interlobular septal thickening, centrilobular nodule, bronchiectasis, and cystic change.

All patients presented with dyspnea. HRCT scans showed the uniform, diffuse GGOs and interlobular septal thickening in both lungs except the subpleural distribution. Cystic change was seen in two patients. No one demonstrated the centrilobular nodule, bronchiectasis in the initial HRCT scan. Two patients obtained the HRCT scans after each 6 months and 2 years. The follow-up scans showed the bronchiectasis and cystic change in both lungs, additionally.

Chronic pneumonitis of infancy is characterized by the uniform and diffuse GGOs with subpleural sparing in both lungs of infants.

Typical HRCT findings of CPI revealed the uniform and diffuse GGOs in both lungs. Correct analysis of HRCT findings of infants with dyspnea can improve the accuracy of imaging diagnosis of CPI.

Eo, H, Yoo, S, Kim, J, Chronic Pneumonitis of Infancy: HRCT Findings.  Radiological Society of North America 2009 Scientific Assembly and Annual Meeting, November 29 - December 4, 2009 ,Chicago IL. http://archive.rsna.org/2009/8016281.html