Pulmonary Langerhans cell histiocytosis

Pulmonary Langerhans Cell Histiocytosiscell histiocytosis

44-year-old, female patient whoPatient consulted the hospital emergency room due to pain in the lower limbs and functional impotence. She has smoked for 20 years and does not report current respiratory symptoms.CT is routinely requested in the context of the COVID 19 pandemic.

In the presence of pulmonary cystic images, we must make athe differential diagnosis with those pathologies that share this characteristic, such asincludes lymphangioleiomyomatosis and lymphocytic interstitial pneumonia.In addition, history such as immunodeficiency and tobacco use should be investigated.

The images of this patient were evaluated together with Dr. Agustina Regallo, a colleague belonging to the Diagnostic Imaging Service.

Pulmonary Langerhans Cell Histiocytosis

Thin-walled cystic images, predominantly apical, observing some with a tendency to confluence with an ascending sensenoted more superiorly.

Innumerable micronodules of centrilobular distribution that predominate in the middle third of the lung.

Sparing of the costophrenic recesses and of both lung bases.