Visualization of pulmonary artery intimal sarcoma by color-coded iodine map using dual-energy computed tomography

Teruyoshi Uetani; Shinji Inaba; Haruhiko Higashi; Jun Irita; Jun Aono; Hikaru Nishiyama; Yuki Tanabe; Riko Kitazawa; Teruhito Kido; Shuntaro Ikeda; Osamu Yamaguchi

doi:10.1016/j.jccase.2022.03.011

Visualization of pulmonary artery intimal sarcoma by color-coded iodine map using dual-energy computed tomography

J Cardiol Cases. 2022 Apr 26;26(2):111-113. doi: 10.1016/j.jccase.2022.03.011. eCollection 2022 Aug.

Authors

Affiliations

¹ Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
² Department of Cardiology, Saijo Central Hospital, Saijo, Ehime, Japan.
³ Department of Radiology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
⁴ Department of Molecular Pathology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.

Abstract

Pulmonary artery intimal sarcomas (PAIS) are often misdiagnosed as pulmonary embolisms (PE) as their clinical findings and imaging findings are similar. However, given the clinical outcome of both diseases is different in its prognosis, accurate and rapid diagnosis is mandatory. This is a case report of a histologically-proven PAIS which was initially treated as a PE. The color-coded iodine map using dual-energy computed tomography (dual-energy CT iodine map) well reflected the distribution of the tumor consistent with ¹⁸fluoro-2-deoxyglucose-uptake region using positron emission tomography/CT. This case demonstrates the potential of using dual-energy CT iodine map to differentiate PAIS from PE.

Learning objective: Use of a dual-energy computed tomography iodine map to visualize a pulmonary artery intimal sarcoma may provide useful diagnostic information.

Keywords: Cardiac tumor; Computed tomography; Positron emission tomography; Pulmonary artery intimal sarcoma.

Publication types

Case Reports