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Arora M, Toskich BB, Lewis AR, Padula CA, Montazeri SA, Ritchie C, Frey G, Paz-Fumagalli R, McKinney JM, Devcic Z. Radiation Segmentectomy for the Treatment of Primary Hepatic Malignancies of the Caudate Lobe: A Case Series. Cardiovasc Intervent Radiol 2022; 45:1485-1493. [PMID: 36028573 DOI: 10.1007/s00270-022-03250-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/06/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE Tumors involving the caudate lobe present a unique therapeutic challenge due to their complex anatomy and the safety and efficacy of locoregional therapy can be variable. The purpose of this study is to analyze the outcomes of radiation segmentectomy for primary caudate lobe tumors. MATERIALS AND METHODS Eight patients [5 women and 3 men; median age = 69 y (range 50-79)] that underwent transarterial radioembolization (TARE) using yttrium-90 (Y90) glass microspheres for primary caudate lobe tumors (hepatocellular carcinoma = 6, intrahepatic cholangiocarcinoma = 2) from August 2017 to March 2021 were retrospectively analyzed. Descriptive statistics, treatment parameters, tumor response (using modified response evaluation criteria in solid tumors), adverse events [using common terminology criteria for adverse events (CTCAE)], and survival outcomes were evaluated. RESULTS Eight primary caudate lobe tumors with a median size of 2.2 cm [interquartile range (IQR), 1.7-3.3] and Child-Pugh class A liver function underwent TARE of the caudate lobe. The median radiation dose was 596 Gy (IQR 356-1585), median total activity was 0.84 GBq (IQR 0.56-1.31), median specific activity was 473 Bq/sphere (IQR 226-671), and the median number of Y90 microspheres used was 1.4 million (IQR 1.2-3.4). All complications were CTCAE grade 1, and no clinically significant hilar plate complications were observed. In targeted tumors, complete response was seen in all patients. At a median follow-up period of 16.6 months (IQR 6.6-21.6) 75% (6/8) of patients were alive with no in-field progression. CONCLUSION Radiation segmentectomy of primary caudate lobe tumors appears effective and is well tolerated in this limited case series within the described treatment parameters. LEVEL OF EVIDENCE Level 4, Case Series.
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Affiliation(s)
- Manasi Arora
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Beau B Toskich
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Andrew R Lewis
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Carlos A Padula
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Seyed Ali Montazeri
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Charles Ritchie
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Gregory Frey
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Ricardo Paz-Fumagalli
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - J Mark McKinney
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Zlatko Devcic
- Division of Interventional Radiology, Department of Radiology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA.
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