Correct!
3. Nodular, lymphocytic interstitial pneumonia

Larger pulmonary parenchymal nodules are seen with the nodular type of pulmonary amyloidosis (0.5-5.0 cm nodules in size). The tracheobronchial type of pulmonary amyloidosis has no known association with LAM and therefore, choice 1 is incorrect.  Diffuse parenchymal nodules can occur in the lungs and are usually seen in the setting of smaller micronodules (2-4 mm). However, previously described case reports in the literature have identified a relationship between lymphocytic interstitial pneumonia (LIP) and amyloidosis. Furthermore, in some cases, cystic lesions may be not solely be on the basis of amyloidosis but also due to concomitant LIP. Therefore, the best answer is 3.

References

  1. Lee AY, Godwin JD, Pipavath SNJ. Case 182: Pulmonary amyloidosis. Radiology 2012; 263(3):929-32. [CrossRef] [PubMed]
  2. Urban BA, Fishman EK, Goldman SM, Scott WW Jr, Jones B, Humphrey RL, Hruban RH. CT evaluation of amyloidosis: spectrum of disease. RadioGraphics 1993;13(6):1295–1308. [CrossRef] [PubMed]
  3. Georgiades CS, Neyman EG, Barish MA, Fishman EK. Amyloidosis: review and CT manifestations. Radiographics 2004;24(2):405-16. [CrossRef] [PubMed]
  4. Boston University Amyloidosis Center. Amyloid types. Available at: http://www.bu.edu/amyloid/about/what/types/ (accessed 10/2/14).

Home/Imaging