CTICasesDiffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH)
Imaging findings
CT scan of an older female with a history of asthma shows multiple lung nodules (with a dominant typical carcinoid) and extensive, diffuse mosaic attenuation/air trapping.
Key takeaways
DIPNECH is a rare, pre-neoplastic condition characterized by neuroendocrine cell proliferation in the bronchioles. Key CT features include multiple carcinoid tumorlets/nodules and mosaic attenuation representing constrictive bronchiolitis.
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