World Journal of Cardiovascular Diseases, 2022, 12, 439-443 https://www.scirp.org/journal/wjcd ISSN Online: 2164-5337 ISSN Print: 2164-5329 DOI: 10.4236/wjcd.2022.129045 Sep. 14, 2022 439 World Journal of Cardiovascular Diseases Oval-Shaped Radiographic Opacity Mimicking a Lung Mass Farid Khan 1* , Muhammad Imtiaz 1 , Keyoor Patel 1 , Owais Ahmed 2 , Rasha Aurshiya 2 , Pranava Ganesh 2 1 UHS Heart & Vascular Institute, Wilson Medical Center, Johnson City, NY, USA 2 UHS Pulmonology & Critical Care, Wilson Medical Center, Johnson City, NY, USA Abstract Phantom tumor of the lung is an infrequent presentation of volume overload in congestive heart failure. This finding is often mistaken for a lung mass that leads to extensive workup and unnecessary treatments. A 75-year-old male was evaluated for a right lower lobe rounded opacity. A transthoracic echo- cardiogram showed normal left ventricular function. Biopsy of the mass was unremarkable. Patient was managed with diuretics, and subsequent lung im- aging revealed resolution of the opacity. Keywords Dyspnea, Lung Mass, Interlobar Effusion, Diuresis, Heart Failure 1. Background Localized lung effusion is an infrequent presentation of volume overload related to decompensated congestive heart failure (CHF). Radiographically, it may ap- pear in the form of an opacity that resolves with CHF treatment. It has been de- scribed as vanishing tumor, pseudotumor or phantom tumor of the lung [1]-[9]. Fluid collection in the pulmonary fissure or interlobar region may cause a tumor-like appearance on the chest imaging hence the misnomer phantom tu- mor. This finding is often mistaken for a lung tumor that leads to extensive workup and unnecessary treatments. Apart from HF, other conditions including cirrhosis, hypoalbuminemia and renal failure may also present in the form of a mass-like effusion. We report our experience of an interesting case of localized effusion, related clinical details, diagnostic workup, and management. How to cite this paper: Khan, F., Imtiaz, M., Patel, K., Ahmed, O., Aurshiya, R. and Ganesh, P. (2022) Oval-Shaped Radiograph- ic Opacity Mimicking a Lung Mass. World Journal of Cardiovascular Diseases, 12, 439-443. https://doi.org/10.4236/wjcd.2022.129045 Received: July 12, 2022 Accepted: September 11, 2022 Published: September 14, 2022 Copyright © 2022 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access