Recently, there was a chest conference pertaining to the CT in Langerhan’s cell histiocytosis.
This 81 year old male presented to the emergency room with severe hypoxia. He had been a long-time smoker, and had been short of breath over the last year. A CT scan was done and images are below.
Do you think the CT scan is most compatible with 1) emphysema 2) idiopathic pulmonary fibrosis 3)pulmonary fibrosis with emphysema 4) end-stage langerhan’s cell histiocytosis 5) end stage sarcoidosis?
March 14, 2008 at 3:28 am
Sure looks like a lot of thin walled cysts predominantly in the mid- to upper-lung zones. I bet a biopsy would show peribronchiolar nodules with variable fibrosis and honeycomb-like structures. There are newer stains that have been described in the past few years that would be interesting to use on lung tissue such as this (e.g. anti-CD103 antibodies, see Sung et al. J Immunol 176:2161, 2006).
March 26, 2008 at 12:38 am
This is most characteristic of end-stage Langerhan’s histiocytosis
M Kallay