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Related Experiment Videos

Pulmonary tumorlets: CT findings.

Michelle S Ginsberg1, Oguz Akin, Debra M Berger

  • 1Department of Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY 10021, USA. ginsberm@mskcc.org

AJR. American Journal of Roentgenology
|July 23, 2004
PubMed
Summary

Pulmonary tumorlets, benign neuroendocrine cell growths, frequently appear as small nodules on CT scans. These findings are important for the differential diagnosis of subcentimeter pulmonary nodules.

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Area of Science:

  • Pulmonary Pathology
  • Radiology
  • Oncology

Background:

  • Pulmonary tumorlets are small, benign neuroendocrine cell proliferations.
  • They are typically associated with airway damage and ectasia.
  • Their appearance on CT scans requires characterization.

Purpose of the Study:

  • To determine the frequency of pulmonary tumorlets on CT scans.
  • To describe the characteristic CT appearance of pulmonary tumorlets.
  • To aid in the differential diagnosis of small pulmonary nodules.

Main Methods:

  • Review of CT scans from patients with pathologically proven pulmonary tumorlets.
  • Correlation of imaging findings with surgical or biopsy results.
  • Analysis of nodule size, location, and associated findings on CT.

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Main Results:

  • Pulmonary tumorlets were visible as nodules on CT in patients with proven disease.
  • The nodules corresponded in location to the resected tumorlet specimens.
  • CT can identify these benign lesions.

Conclusions:

  • Pulmonary tumorlets can manifest as subcentimeter pulmonary nodules on CT.
  • Despite the name, pulmonary tumorlets are benign.
  • Consider pulmonary tumorlets in the differential diagnosis of small pulmonary nodules on CT.