A Rare Case of Submassive Pulmonary Embolism with a Right Aberrant Subclavian Artery and Thrombosed Kommerell Diverticulum

Natsuki Onishi; Tomo Komaki; Masayuki Nakamura; Tadaaki Arimura; Joji Morii; Masahiro Ogawa; Shin-ichiro Miura

doi:10.2169/internalmedicine.4495-20

CASE REPORTS

A Rare Case of Submassive Pulmonary Embolism with a Right Aberrant Subclavian Artery and Thrombosed Kommerell Diverticulum

Natsuki Onishi, Tomo Komaki, Masayuki Nakamura, Tadaaki Arimura, Joji Morii, Masahiro Ogawa, Shin-ichiro Miura

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Keywords: a thrombosed Kommerell diverticulum, pulmonary embolism, a strong hypercoagulable state, rivaroxaban

JOURNAL OPEN ACCESS

2020 Volume 59 Issue 15 Pages 1861-1865

DOI https://doi.org/10.2169/internalmedicine.4495-20

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Abstract

An 81-year-old man presented with shortness of breath and was referred to our hospital with suspected acute pulmonary embolism. Enhanced computed tomography revealed a right aberrant subclavian artery with a thrombosed Kommerell diverticulum (KD), as well as deep vein thrombosis in the left leg and bilateral pulmonary artery thrombosis. Thrombosis in the KD disappeared after one month of anticoagulation treatment with rivaroxaban. Thrombosis of a KD is a rare condition that may cause distal emboli and subclavian steal syndrome, although this syndrome was not present in this case. Rivaroxaban is an effective anticoagulant for treating thrombosis of a KD.

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