Pulmonary hamartoma: CT findings

S. S. Siegelman, Nagi Fouad Khouri, William W Scott, F. P. Leo, U. M. Hamper, E. K. Fishman, E. A. Zerhouni

Research output: Contribution to journalArticlepeer-review

201 Scopus citations


Forty-seven patients with a proved (n = 31) or presumed (n = 16) diagnosis of pulmonary hamartoma were studied prospectively by thin-section computed tomography (CT). CT criteria for hamartoma included a diameter of 2.5 cm or less, a smooth edge, and focal collections of fat or fat alternating with areas of calcification. No case of cancer (n = 283) or metastatic disease (n = 72) fulfilled these criteria. Seventeen hamartomas with no detectable calcium or fat were not diagnosed by means of CT. Two other lesions contained diffuse calcium deposits. In 28 lesions, a CT diagnosis of hamartoma was based on the detection of fat (n = 18) or calcium plus fat (n = 10). Twelve such cases were proved histologically by means of thoracotomy or needle biopsy; the remainder, including eight in asymptomatic patients aged 65 years or older, were managed with conservative follow-up.

Original languageEnglish (US)
Pages (from-to)313-317
Number of pages5
Issue number2
StatePublished - Jan 1 1986

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Pulmonary hamartoma: CT findings'. Together they form a unique fingerprint.

Cite this