CTICasesPulmonary Langerhans Cell Histiocytosis (PLCH)
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Imaging findings
CT showed irregular cavitary nodules distributed throughout the lungs, including the costophrenic angles. Some cavities were small, others larger. While extensive, the involvement was slightly less pronounced in the upper lungs compared to other areas.
Key takeaways
This is a biopsy-proven case of pulmonary Langerhans cell histiocytosis in a smoker. PLCH is characterized by irregular cavitary nodules, typically with variable size cavities, and can be quite extensive, involving both upper and lower lung zones.
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