Pulmonary Tumorlet

Epidemiology

  • Most commonly seen in elderly females
  • Associated with: Pulmonary fibrosis/ bronchiectasis

Physiology

  • Benign tumor of neuroendocrine cell origin in lung
  • Occasionally metastasize

Pathology

  • Neuroendocrine cells (may represent small carcinoid tumors, but are benign)
  • Immunohistochemical stains: argyrophilic/ positive for neuron-specific enolase

Diagnosis

  • CXR/Chest CT Pattern: usually not detectable on CXR alone

Clinical

  • Symptoms/signs (usually not clinically significant and most are diagnosed at autopsy or incidentally in surgical specimens):

Treatment

  • xxx

References

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