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Hepatocellular carcinoma with thoracic metastases presenting as hemothorax

A case report and literature review

Yen, Chih-Wei, MDa,b; Hsu, Li-Sheng, MDb,c,d,*; Chen, Chien-Wei, MDb,c,e; Lin, Wei-Hsiu, PhDf

Section Editor(s): NA.,

doi: 10.1097/MD.0000000000010945
Research Article: Clinical Case Report
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Rationale: Hemothorax caused by metastasis or direct invasion of hepatocellular carcinoma (HCC) in the chest is rare. We report a case of hemothorax caused by metastasis in the mediastinum and treated with transcatheter arterial embolization (TAE).

Patient concerns: A 60-year-old woman with HCC was admitted to receive chemotherapy. Two days after admission, she complained of dyspnea, and a chest X-ray revealed right pleural effusion. Thoracentesis confirmed the diagnosis of hemothorax. Computed tomography (CT) angiography showed lung, pleural, and mediastinal metastases and contrast extravasation from the right lower mediastinal mass.

Diagnoses: Hemothorax caused by spontaneous rupture of mediastinal metastasis of hepatocellular carcinoma.

Interventions: During emergent angiography, contrast extravasation from the right T10 intercostal artery was observed and we performed embolization with lipiodol and gelatin sponge particles. After embolization, no active bleeding was observed.

Outcomes: The patient died because of sepsis and multiple organ failure 22 days after admission.

Lessons: We reviewed 21 cases of HCC with metastasis or direct invasion in the chest presenting hemothorax. The results revealed that male sex and right hemothorax were predominant in these cases. The average age of the patients was 61.24±10.82 years. The most common symptoms were dyspnea, chest wall pain, and shock. Thoracentesis can confirm the diagnosis, and CT angiography can help identify the location of contrast extravasation before TAE. The reported bleeding arteries were the intercostal, inferior phrenic, bronchial, hepatic, and superficial cervical arteries. TAE with embolic agents is a feasible treatment. The overall outcomes in these cases were poor.

aDepartment of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi

bChang Gung University College of Medicine, Taoyuan

cDepartment of Diagnostic Radiology, Chang Gung Memorial Hospital, Chiayi

dDepartment of Biomedical Engineering, National Cheng Kung University, Tainan

eInstitute of Medicine, Chung Shan Medical University, Taichung

fDepartment of Physical Education, Health and Recreation, National Chiayi University, Chiayi, Taiwan.

Correspondence: Li-Sheng Hsu, Chang Gung Memorial Hospital, Chiayi Branch, Puzi City, Chiayi County, Taiwan (e-mail: gv107392@yahoo.com.tw).

Abbreviations: ADI-PEG20 = pegylated arginine deiminase, CT = computed tomography, FMP = fludarabine, mitoxantrone, and prednisone, FOLFOX = folinic acid, fluorouracil, and oxaliplatin, HCC = hepatocellular carcinoma, TACE = transcatheter arterial chemoembolization, TAE = transcatheter arterial embolization.

The authors have no conflicts of interest to disclose.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms. http://creativecommons.org/licenses/by-nc-sa/4.0

Received February 25, 2018

Accepted May 7, 2018

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1 Introduction

Hepatocellular carcinoma (HCC) sometimes causes hemoperitoneum. However, hemothorax caused by metastasis or direct invasion of HCC is rare.[1] We report a case of hemothorax caused by mediastinal metastasis and treated with transcatheter arterial embolization (TAE). We also review and summarize the previously reported cases of hemothorax caused by metastasis or direct invasion of HCC.

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2 Case presentation

A 60-year-old woman with progression of HCC and lung metastasis was admitted to our hospital for her 12th cycle of chemotherapy with a folinic acid, fluorouracil, and oxaliplatin (FOLFOX) regimen on March 2, 2016. She had a history of HCC in segments 7 and 8 of the liver and received segmental hepatectomy in September 2009; tumor recurrence in segments 5 and 6 with tumor rupture and hemoperitoneum postemergent embolization and segmental hepatectomy in March 2011; local recurrence in the liver dome and lung metastasis after receiving sorafenib from March 2012 to February 2013; pegylated arginine deiminase (ADI-PEG20) treatment for 12 cycles (March to May 2013); fludarabine, mitoxantrone, and prednisone (FMP) therapy for 4 cycles (June to October 2013); transcatheter arterial chemoembolization (TACE) 4 times (November 2013 to July 2014); and 11 cycles of chemotherapy with the FOLFOX regimen (December 2014 to January 2016). She also had diabetes mellitus, chronic hepatitis C, liver cirrhosis, and hypertension.

On admission, physical examination revealed a body temperature of 36.6°C, a pulse rate of 106 beats/min, blood pressure of 118/80 mm Hg, and a respiration rate of 18 breaths/min. Laboratory investigations showed the following: hematocrit, 34.4%; hemoglobin, 11.2 g/dL; red blood cell count, 3.76 million/mm3; white blood cell count, 2600/mm3; platelet count, 55,000/mm3; blood urea nitrogen, 89.4 mg/dL; creatinine, 4.17 mg/dL; sodium, 131 mEq/L; and potassium, 4.0 mEq/L.

Two days after admission, she complained of dyspnea, and a chest radiography revealed right pleural effusion (Fig. 1). Thoracentesis confirmed the diagnosis of hemothorax. Computed tomography (CT) angiography showed lung, pleural, and mediastinal metastases and contrast extravasation from the right lower mediastinal mass (Fig. 2). During emergent angiography, contrast extravasation from the right T10 intercostal artery was observed and TAE with lipiodol and gelatin sponge particles was performed. After the procedure, no active bleeding was observed (Fig. 3). However, she died because of sepsis and multiple organ failure 22 days after admission.

Figure 1

Figure 1

Figure 2

Figure 2

Figure 3

Figure 3

The case report has been approved by the Chang Gung Medical Foundation Institutional Review Boards (IRB), Taipei, Taiwan. The patient consent was waivered by the IRB.

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3 Discussion

HCC is usually hypervascular and spontaneous rupture is not uncommon. Metastatic lesions of HCC, like their primary lesions, have the tendency to rupture.[2] Rupture of metastatic lesions have been reported in the adrenal gland,[3,4] kidneys,[5] mandible,[6] peritoneum,[7,8] and spleen,[9,10] besides chest lesions, which will be discussed below.

In 2012, Ono et al[11] reviewed 17 cases of hemothorax caused by either metastasis or direct invasion in the chest. We further reviewed previous literature and found 21 cases (including the present case) of HCC with metastasis or direct invasion in the chest presenting hemothorax (Table 1); these cases are summarized in Table 2.

Table 1

Table 1

Table 2

Table 2

According to Table 2, these cases predominantly involved men (76.2%) and right hemothorax (71.4%). The average age of affected patients is 61.24 ± 10.82 years. The most common symptoms are dyspnea (52.6%), chest pain (36.8%), and shock (42.1%). Patients may have acute onset of pleural effusion and symptoms. Pleural tapping can confirm the diagnosis.

Nine patients (45.0%) were treated with TAE, and procedural failure occurred in one case. The reported bleeding arteries were the intercostal, inferior phrenic, bronchial, hepatic, and superficial cervical arteries. These arteries were related to the locations of contrast extravasation. The patients who exhibited bleeding in 2 cases with direct diaphragmatic invasion involved bleeding from the hepatic arteries. To identify the bleeding arteries, CT angiography can be helpful. A gelatin sponge was most commonly used, and other embolic agents, including ethanol, lipiodol, and polyvinyl alcohol particles were also used. Other treatment modalities, including chemotherapy, surgery, and radiofrequency ablation have been adopted. However, there are too few cases to analyze and more cases are needed for further evaluation.

Regarding the outcomes, 45% of patients died within a month, 80% died within 6 months, and only 20% of cases survived for more than 6 months. Most deaths within a day were caused by shock, and the causes of deaths from several days to 6 months included respiratory failure, hepatic failure, multiple organ failure, and cancer death. The outcomes of 8 patients undergoing successful TAE varied greatly; the survival time ranged from 40 days to more than 15 months. One patient who received combined TAE and surgery even survived for more than 2 years.

In conclusion, thoracic metastasis or direct invasion of HCC presenting with hemothorax is rare, and cases involving men and right hemothorax are predominant. If a patient with thoracic metastasis of HCC has acute pleural effusion, dyspnea, chest pain, or shock, tumor bleeding should be taken into consideration. CT angiography can identify the locations of contrast extravasation. The bleeding arteries that have been reported are the intercostal, inferior phrenic, bronchial, hepatic, and superficial cervical arteries. TAE with embolic agents is a feasible treatment. The overall outcomes of these cases are poor.

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Author contributions

Writing – original draft: Chih-Wei Yen.

Writing – review & editing: Li-Sheng Hsu, Chien-Wei Chen, Wei-Hsiu Lin.

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References

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              Keywords:

              computed tomography; hemothorax; hepatocellular carcinoma; thoracic metastasis; transcatheter arterial embolization

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