The Chest Wall Tumor as a Rare Clinical Presentation of Hepatocellular Carcinoma Metastasis
Nádor hrudnej steny ako zriedkavý klinický prejav metastázy hepatocelulárneho karcinómu
Východiská:
Extrahepatálna diseminácia hepatocelulárneho karcinómu je prítomná v čase diagnózy u 5–15 % pacientov. Najčastejším miestom metastatického postihnutia sú pľúca, kosti, lymfatické uzliny. Izolované postihnutie hrudnej steny je extrémne zriedkavé.
Prípad:
V tejto kazuistike referujeme 58-ročného muža s veľkou, synchrónnou metastázou hepatocelulárneho karcinómu hrudnej steny a so solitárnym primárnym ložiskom hepatocelulárneho karcinómu. Pacient podstúpil radikálnu en bloc metastazektómiu hrudnej steny s následnou anatomickou resekciou pečene. Odstránenie hrudnej metastázy viedlo k agresívnej diseminácii tohto ochorenia, po ktorej bol pacient liečený antiangiogénou liečbou a po zlyhaní systémovou chemoterapiou. Kombinovaná multimodálna terapia v tomto prípade viedla k 22-mesačnému celkovému prežívaniu pacienta. Predpokladáme, že iniciálna prezentácia obrovskej metastázy hrudnej steny a následná agresívna disemináciá po chirurgickom odstánení by mohli byť vysvetlené biologickým procesom zvaným „nádorový samovýsev“ pomocou cirkulujúcich nádorových buniek.
Záver:
Metastáza hepatocelulárneho karcinómu v hrudnej stene je zriedkavý prejav nádorovej diseminácie a je spojená s nepriaznivou prognózou. Radikálny chirurgický zákrok je limitovaný na malú podskupinu pacientov a môže byť zvažovaný na podklade individuálneho zhodnotenia.
Kľúčové slová:
hepatocelulárny karcinóm – metastáza hrudnej steny – metastazektómia – cirkulujúce nádorové bunky
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Obdrženo:
12. 3. 2017
Přijato:
20. 4. 2017
Authors:
S. Porsok 1; M. Mego 1; D. Pinďák 2; R. Duchoň 2; J. Beniak 3; J. Mardiak 1
Authors place of work:
Department of Medical Oncology School of Medicine, Comenius University, National Cancer Institute, Bratislava, Slovak Republic
1; Department of Oncological Surgery, Slovak Medical University, National Cancer Institute, Bratislava, Slovak Republic
2; POKO Poprad, s. r. o., Slovak Republic
3
Published in the journal:
Klin Onkol 2017; 30(4): 299-301
Category:
Kazuistika
doi:
https://doi.org/10.14735/amko2017299
Summary
Background:
Extrahepatic metastatic spread of hepatocellular carcinoma is present at the time of diagnosis in 5–15% of hepatocellular carcinoma patients. The most common site of metastastic spread is the lungs, bones, lymph nodes. Isolated chest wall localization is extremely rare.
Case:
We report a 58-year-old patient with large, synchronous chest wall hepatocellular carcinoma metastasis with solitary primary hepatocellular carcinoma. He underwent a radical, surgical en bloc metastasectomy and subsequent anatomic liver resection. Removal of this metastasis further led to aggressive dissemination to different sites during the course of the disease and subsequently the patient was treated with antiangiogenic therapy and, after failure, with systemic chemotherapy. Combined multimodality treatment in this case led to overall survival of 22-months. We suggest that the initial huge presentation of chest wall metastasis and consecutive aggressive dissemination after surgical removal could be explained by the biological process called “tumor self-seeding” by circulating tumor cells.
Conclusion:
The chest wall hepatocellular carcinoma metastasis is a rare entity associated with poor prognosis. Radical surgical approach is limited to a minority of patients and may be justified for the treatment of extrahepatic metastases on a case by case basis.
Key words:
hepatocellular carcinoma – chest wall metastasis – metastasectomy – ciculating tumor cells
Introduction
Hepatocellular carcinoma (HCC) is the sixth most common neoplasm and the third most frequent cause of cancer-related deaths worldwide. The incidence varies from 3 out of 100 000 in Western countries, to more than 15 out of 100 000 in certain areas of the world, mapping the geographical distribution of viral hepatitis B (HBV) and hepatitis C (HCV) [1]. In the majority of patients, a localized or locally advanced disease is present. Herein, we report a rare case of HCC with initial presentation of solitary chest wall metastasis.
Case report
We report a 58-year-old patient who, in December 2010, visited an oncologist with a 5-month rapidly growing tumor lesion in the right upper chest wall region. The physical findings presented a large tumor, approximately 15 × 20 cm in size (Fig. 1). A staging thorax and abdomen computed tomography (CT) scan verified a large encapsulated tumor 17 × 11 × 13 cm (Fig. 2), localized in the right subclavicular region, with suspected infiltration of clavicula, chest wall, tumor lesion in the right hepatic lobe S6, without typical radiological characterization of HCC, 3 cm in diameter. A biopsy of the chest wall tumor verified a metastatic spread of HCC, G1. Laboratory screening was completely negative in relationship to HBV, HCV, AFP, leukocytosis, normal blood coagulation and biochemical values.
The patient was presented to a multidisciplinary tumor board with the decision of resectability of the chest wall tumor, due to the bordered tumor, assumption of radical resection and limited cervico-brachial mobility. In February 2011, the tumor was surgically completely removed with partial resection of the clavicula and transposition of the major pectoral muscle. Definitive histology confirmed a metastatic spread of HCC, R0 resection. A segmentectomy was performed in March 2011, and histology confirmed HCC, R0 resection.
Until September 2011, the patient was observed. In October 2011, the patient’s performance status declined, and he experienced worsening abdominal and back pain. A control CT scan verified a metastatic dissemination to the lung, lumbosacral spine and locoregional relapse to the chest wall. The patient started with palliative therapy of Sorafenib 400 mg bid, intravenous zoledronic acid once every 4 weeks. Because of bad toleration of Sorafenib, hand and foot syndrome G2, stomatitis, anorexia and loss of appetite, the dose of Sorafenib was reduced to 200 mg bid. Local external radiotherapy was applied to the lumbosacral spine in a total dose of 20 Gy. In December 2011, new neurological symptoms, headache, and double vision occurred. Magnetic resonance imaging (MRI) of the brain showed a metastatic dissemination to the skull and left orbital cavity, with oppression of optic nerves and vessels. Due to the close localization of the tumor to optic vessels and nerves, external radiotherapy was not applied. Systemic Sorafenib therapy was stopped, and treatment was continued on the basis of best supportive care. After improvement of the performance status, in February 2012, the patient started 2nd line systemic therapy with 5-fluorouracil (5-FU) and leucovorin. The therapy was continued until May 2012. In June 2012 the control CT scan verified a progression of metastatic lesion in the lung, liver, bones, cervical lymph nodes. Systemic therapy was stopped, and the patient was treated with best supportive care. Despite this treatment, the patient’s clinical status deteriorated rapidly, and the patient died in August 2012.
Discussion
Extrahepatic metastatic spread is present at the time of diagnosis in only approximately 5–15% of cases [2,3]. Metastases are more common in patients with advanced primary tumors (> 5 cm, large vessel vascular invasion). The most common sites of metastatic spread are the lungs (45–50%), bones (35–40%), intra-abdominal lymph nodes (45%) and adrenal gland (12%) [4–6]. Brain metastases are rare overall (0.2–2% of cases), more common in advanced stage disease [7]. Chest wall metastases are extremely rare. Only a few cases, including synchronous primary liver and unknown primary site HCC chest wall metastases [8–10], have been published.
Our patient was initially presented with a stage IV disease, however, with only a solitary chest wall metastasis. Removal of this metastasis further led to dissemination to different sites during the course of the disease. This case is interesting from a biological as well as from a clinical point of view. Solitary chest wall metastasis is an unusual presentation of HCC. We suggest that initial presentation of solitary, huge metastasis in relation to a relatively small primary could be explained by the biological process called tumor self-seeding by circulating tumor cells (CTC). Tumor self-seeding by CTC describes the multidirectional capacity of cancer cells to seed distant organs as well as self-seeding of the primary tumor, while tumor-derived inflammatory cytokines interleukin 6 (IL-6) a interleukin 8 (IL-8) act as CTC attractants, promoting accelerated tumor growth, angiogenesis, and recruitment of myeloid cells into the stroma [11]. We suggest that in this case, the huge solitary chest wall metastasis works as a CTC trap, where CTC were attracted by chemokines in the process of self-seeding. While this process leads to progression of this metastasis, at the same time, it probably prevents CTC dissemination to different sites. We speculate that removal of this metastasis abrogates self-seeding and allows CTCs to disseminate.
The standard treatment of stage IV HCC is Sorafenib, an oral multikinase inhibitor with antiangiogenic and antiproliferative effect or best supportive care according to performance status and liver metabolic status expressed as Child-Pugh score. Surgical resection of extrahepatic metastases reported a limited benefit and only rarely is associated with long-term survival. Limited pulmonary metastasis resection, with a 5-year survival rate of 27–33% after resection has the most favorable prognosis [12–14].
The outcomes of surgical resection of extrahepatic metastases including in the lung, bone, brain, soft tissues, adrenal glands, heart showed poorer prognosis than in the lung and are associated with the dismal prognosis. The reported 3-year survival rate was 0–9% [15].
In our case, synchronous surgical removal of primary HCC and chest wall metastasis led to progression-free survival of 6 months, while overall survival was 22 months. The clinical effect and toxicity profile of Sorafenib treatment in our case was comparable with published SHARP and Asia-Pacific Data, while the effect of chemotherapy is limited as shown in our case as well.
Conclusion
In conclusion, the synchronous extrahepatic chest wall HCC metastasis reported in our case report is a rare entity associated with poor prognosis. Adequate therapeutic options are still being debated. Radical surgical approach is limited to a minority of patients based on resectability of the tumor and surgical experience. In case of unresectable disease, the therapeutic options include systemic antiangiogenic therapy, immunotherapy, chemotherapy and hormonal therapy. Until other treatment approaches are established to improve life expectancy and the patient’s quality of life, surgical resection may be justified for the treatment of extrahepatic metastases on case by case basis.
The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study.
The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.
Stefan Porsok, MD
Department of Medical Oncology
School of Medicine
Comenius University
National Cancer Institute
Klenova 1
831 02 Bratislava
Slovak Republic
e-mail: stefpors@gmail.com
Submitted: 12. 3. 2017
Accepted: 20. 4. 2017
Zdroje
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11. Kim MY, Oskarsson T, Acharyya S et al. Tumor self-seeding by circulating cancer cells. Cell 2009; 139 (7): 1315–1326.
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13. Tomimaru Y, Sasaki Y, Yamada T et al. The significance of surgical resection for pulmonary metastasis from hepatocellular carcinoma. Am J Surg 2006; 192 (1): 46–51.
14. Kuo SW, Chang YL, Huang PM et al. Prognostic factors for pulmonary metastasectomy in hepatocellular carcinoma. Ann Surg Oncol 2007; 14 (2): 992–997.
15. Kawamura M, Nakajima J, Matsuguma H et al. Surgical outcomes for pulmonary metastases from hepatocellular carcinoma. Eur J Cardiothoracic Surg 2008; 34 (1): 196–199.
Štítky
Dětská onkologie Chirurgie všeobecná OnkologieČlánek vyšel v časopise
Klinická onkologie
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