대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Chief Complaint

Progressive dyspnea (onset: 1 MA)

Past History

HCC

Reviewy

Radiation pneumonitis after TARE

Transarterial radioembolization (TARE)
Increasingly used treatment option for primary and metastatic liver cancers
Intraarterial delivery of microspheres containing yttrium-90
Similar to those of TACE, but less selective fashion

Excessive pulmonary radiation : more than 30 Gy in a single session or more than 50 Gy cumulatively irradiation
May cause radiation pneumonitis

Incidence is less than 1%
Manifests 4-6 weeks after the procedure
Non-productive cough, dyspnea, and fever
TOC: corticosteroids.

Typical radiologic pattern : “bat-wing” appearance
Chronic phase: progresses to radiation fibrosis, linear scarring, volume loss, traction bronchiectasis

Keywords