Detection of ACTH-producing bronchial carcinoid tumors: MR imaging vs CT

J. L. Doppman, H. I. Pass, L. K. Nieman, J. W. Findling, A. J. Dwyer, I. M. Feuerstein, A. Ling, W. D. Travis, C. B. Cutler, G. P. Chrousos, Donald (Lynn) Loriaux

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

Adrenocorticotrophic hormone (ACTH)-producing bronchial carcinoid tumors tend to occur in the middle third of the lung adjacent to pulmonary vessels. Because they cause signs and symptoms when quite small (by virtue of their ACTH production), they may not be detected by CT. MR imaging was performed in 10 consecutive patients with surgically proved ACTH-producing bronchial carcinoid tumors in order to test the ability of MR to clarify equivocal or indeterminate findings on CT examinations. All bronchial carcinoid tumors had high signal intensity on T2-weighted and short-inversion-time inversion-recovery images, facilitating their distinction from pulmonary vasculature. In eight patients, the CT and MR images were equivalent in the detection of bronchial carcinoid tumors. In two patients, MR showed tumors in the middle third of the lung that were equivocal on CT. MR imaging may distinguish small bronchial carcinoid tumors from adjacent pulmonary vessels in the central third of the lung at a time when the CT study is nondiagnostic or equivocal.

Original languageEnglish (US)
Pages (from-to)39-43
Number of pages5
JournalAmerican Journal of Roentgenology
Volume156
Issue number1
Publication statusPublished - 1991
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Doppman, J. L., Pass, H. I., Nieman, L. K., Findling, J. W., Dwyer, A. J., Feuerstein, I. M., ... Loriaux, D. L. (1991). Detection of ACTH-producing bronchial carcinoid tumors: MR imaging vs CT. American Journal of Roentgenology, 156(1), 39-43.