Rosai-Dorfman Disease: Rare Pulmonary Involvement Mimicking Pulmonary Langerhans Cell Histiocytosis and Review of the Literature

Figure 2

Selected axial and coronal HRCT images on lung windows show bilateral pulmonary cysts. Some of them are rounded and some demonstrate bizarre shapes with multiloculation and internal septations. There are also bilateral ground-glass nodules ranging from 1-2 mm up to a few centimeters. The findings are upper lobe predominant and spare the lung bases.

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