Pulmonary lymphoepithelial cyst with no prior HIV infection: A case report

Miho Saeki, MD; Hidefumi Fujisawa, MD, PhD; Kota Watanabe, MD; Mana Kurihara, MD; Daiki Murakami, MD; Norihiro Hashizume, MD; Kazuya Matsunari, MD, PhD; Shinichi Ohashi, MD; Akihiko Kitami, MD, PhD; Mayumi Honma, MD, PhD

Radiology Case Reports (Sep 2022)

Pulmonary lymphoepithelial cyst with no prior HIV infection: A case report

Miho Saeki, MD,
Hidefumi Fujisawa, MD, PhD,
Kota Watanabe, MD,
Mana Kurihara, MD,
Daiki Murakami, MD,
Norihiro Hashizume, MD,
Kazuya Matsunari, MD, PhD,
Shinichi Ohashi, MD,
Akihiko Kitami, MD, PhD,
Mayumi Honma, MD, PhD

Affiliations

Miho Saeki, MD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan; Corresponding author.
Hidefumi Fujisawa, MD, PhD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Kota Watanabe, MD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Mana Kurihara, MD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Daiki Murakami, MD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Norihiro Hashizume, MD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Kazuya Matsunari, MD, PhD: Department of Radiology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Shinichi Ohashi, MD: Respiratory Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Akihiko Kitami, MD, PhD: Respiratory Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan
Mayumi Honma, MD, PhD: Department of Pathology, Showa University Northern Yokohama Hospital, Kanagawa, Yokohama 224-8503, Japan

Journal volume & issue: Vol. 17, no. 9
pp. 2946 – 2950

Abstract

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Most lymphoepithelial cysts (LECs) occur in the salivary glands and are considered one of the autoimmune syndromes caused by the human immunodeficiency virus (HIV). In this report, we present a case of pulmonary LEC without prior HIV infection, paying special attention to radiographic features. A chest radiograph revealed an oval mass with a smooth surface, localized in the left lower lung field, which was in direct contact with the diaphragm. Computed tomography showed an oval homogenous mass with a smooth surface in the lower left lobe. Further, magnetic resonance imaging demonstrated that the mass was a homogeneous internal structure with a smooth surface and a slightly high signal in T2-weighted images and a slightly low signal in T1-weighted images. Surgical resection was performed, and pathological examination confirmed the diagnosis of a pulmonary LEC. To the best of our knowledge, no cases of pulmonary LECs without prior HIV infection have been reported in the literature to date, therefore, the case presented here is considered very rare and informative.

Published in Radiology Case Reports

ISSN: 1930-0433 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine
Website: https://www.sciencedirect.com/journal/radiology-case-reports

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