Erdheim-Chester disease with skeletal and lung involvement

Case contributed by Dr Andrew Dixon

Presentation

2 month history of shortness of breath and right knee pain.

Patient Data

Age: 65 years
Gender: Male

Chest x-ray shows reticular interstitial pattern with preserved lung volume. 

Appearance of symmetrical metaphyseal sclerosis and corresponding increased uptake on Tc-MDP bone scan (shown next).

High resolution chest CT reveals predominantly cystic mid and upper zone disease with interstitial thickening, a few nodules, and preservation of lung volumes (the same appearance as Langerhan's cell histiocytosis).

Symmetrical increased uptake on Tc-MDP bone scan corresponding to areas of metaphyseal sclerosis on CT.

Case Discussion

Initial CXR showed reticular interstitial pattern with preserved lung volume. Right knee x-ray revealed femoral and tibial metaphyseal sclerosis. Lung HRCT showed predominantly cystic mid and upper zone disease with interstitial thickening, a few nodules and preservation of lung volumes. Erdheim-Chester Disease (a non-langerhan's cell histiocytosis) was suspected, and the classic symmetrical metaphyseal sclerosis with increased uptake on Tc-MDP bone scan was confirmed when both knees were imaged. The patient died 8 months following symptom onset.

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Case information

rID: 9351
Published: 7th Apr 2010
Last edited: 20th Jul 2018
Inclusion in quiz mode: Included

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