{"title":"Conversion surgery after lenvatinib treatment for multiple lung metastases from hepatocellular carcinoma.","authors":"Shunji Sano, Yoh Asahi, Toshiya Kamiyama, Tatsuhiko Kakisaka, Tatsuya Orimo, Akihisa Nagatsu, Takeshi Aiyama, Keizo Kazui, Hiroki Shomura, Shinya Ueki, Yuzuru Sakamoto, Chisato Shirakawa, Hirofumi Kamachi, Hirokazu Sugino, Tomoko Mitsuhashi, Akinobu Taketomi","doi":"10.1007/s13691-022-00567-6","DOIUrl":"https://doi.org/10.1007/s13691-022-00567-6","url":null,"abstract":"<p><p>Although systemic treatment for hepatocellular carcinoma has advanced after the development of tyrosine kinase inhibitors such as sorafenib and lenvatinib, the effectiveness of a single tyrosine kinase inhibitor in survival extension of unresectable hepatocellular carcinoma is limited to a few months. Therefore, novel treatment options are required for unresectable hepatocellular carcinomas, including those with multiple lung metastases. This case report describes a hepatocellular carcinoma patient with a recurrence of multiple lung metastases, which was successfully treated with conversion pneumonectomy after treatment with tyrosine kinase inhibitors. A 79-year-old man underwent right hepatectomy for hepatocellular carcinoma, along with removal of the tumor thrombus in the inferior vena cava. Multiple lung metastases were detected 4 months after hepatectomy. Treatment with tyrosine kinase inhibitors, mainly lenvatinib, resulted in complete remission of the lung metastases, except for one lesion in segment 3 of the right lung which gradually enlarged. Twenty-three months after hepatectomy, partial resection of the right lung was performed using video-assisted thoracic surgery for this residual lesion in the right lung. The patient remained disease-free for 11 months after conversion pneumonectomy, without any adjuvant therapies. This is the first case report of multiple lung metastases originating from hepatocellular carcinoma which were successfully treated with conversion pneumonectomy after treatment with tyrosine kinase inhibitors. Conversion pneumonectomy after systemic therapy with tyrosine kinase inhibitors should be considered as a treatment strategy for patients with unresectable multiple lung metastases from hepatocellular carcinomas.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 1","pages":"7-13"},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807693/pdf/13691_2022_Article_567.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10019271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A case of malignant phyllodes tumor that responded to pazopanib and developed pneumothorax.","authors":"Hirofumi Ohmura, Takaaki Masuda, Koshi Mimori, Eishi Baba, Takahiko Horiuchi","doi":"10.1007/s13691-022-00572-9","DOIUrl":"https://doi.org/10.1007/s13691-022-00572-9","url":null,"abstract":"<p><p>Here, we present a 59-year-old female with recurrent malignant phyllodes tumor with multiple lung and lymph node metastases who developed a pneumothorax after the administration of pazopanib. The patient received pazopanib as the second-line chemotherapy. After 2.5 months of the therapy, computed tomography (CT) showed a decrease in the sizes and cavitation of lung lesions; however, a left pneumothorax was newly observed. It was difficult to distinguish the pneumothorax by upright chest X-ray. Typical symptom or physical finding of pneumothorax, such as dyspnea, chest pain or decreased breath sound was not observed. As the pneumothorax was small and asymptomatic, the administration of pazopanib was discontinued and follow-up chest X-ray and CT were performed. After 1 week, CT showed an improvement in the pneumothorax. Chemotherapy was switched to eribulin; however, a rapid increase in sizes of lung lesions was observed after the first administration of eribulin, pazopanib was reintroduced. Careful follow-up by chest X-ray and CT was performed and the pneumothorax has not recurred.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 1","pages":"31-35"},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807701/pdf/13691_2022_Article_572.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10305214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Miyama, Kent Kanao, Kousuke Uranishi, Masataka Hirasaki, Masanori Yasuda
{"title":"Complete response to pembrolizumab in a patient with recurrent and metastatic urothelial bladder carcinoma reflecting coexisting sarcomatoid subtype and glandular differentiation: a case report.","authors":"Yu Miyama, Kent Kanao, Kousuke Uranishi, Masataka Hirasaki, Masanori Yasuda","doi":"10.1007/s13691-022-00568-5","DOIUrl":"https://doi.org/10.1007/s13691-022-00568-5","url":null,"abstract":"<p><p>In advanced urothelial carcinoma (UC), approximately 20% of patients respond to pembrolizumab, an anti-programmed cell death-1 (PD-1) antibody. Herein, we reported a single case of UC showing coexistence of sarcomatoid subtype and glandular differentiation. Notably, only glandular differentiation was recurrent, probably progressive, and metastatic, which showed complete response to pembrolizumab. An 80-year-old woman presented with hematuria and dysuria, and an intra-vesical tumor was detected on ultrasound. Transurethral resections (TUR) were performed three times. In the first TUR, a sub-pedunculated tumor and a flat lesion were closely but independently located. Pathologically, the sub-pedunculated tumor was an invasive UC, sarcomatoid subtype. Meanwhile, the flat lesion was invasive UC with glandular differentiation. Despite the second and the additional TUR, the tumor was growing and a lymph node metastasis was detected. The third TUR specimen showed UC with glandular differentiation, and a positive PD-L1 expression as well as high density CD8-positive lymphocytic cells infiltration were observed. Pembrolizumab was administered for four courses after terminating the chemotherapy. The CT scan revealed shrinkage of both primary tumor and metastases. Cystectomy and lymph nodes dissection were performed, and no residual carcinoma was detected. The therapeutic effect was regarded as pathological complete response. Pembrolizumab could be effective for special subtype or divergent differentiation of UC, particularly in an event of an 'immune hot' tumor.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s13691-022-00568-5.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 1","pages":"24-30"},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807710/pdf/13691_2022_Article_568.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10317191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akimi Yoshida, Koji Yamanoi, Asuka Okunomiya, Yusuke Sagae, Masumi Sunada, Mana Taki, Masayo Ukita, Yasuhisa Kurata, Yuki Himoto, Aki Kido, Akihito Horie, Ken Yamaguchi, Junzo Hamanishi, Masaki Mandai
{"title":"A case of paraovarian tumor of borderline malignancy with decrease of apparent diffusion coefficient value and marked 18F-fluorodeoxyglucose accumulation.","authors":"Akimi Yoshida, Koji Yamanoi, Asuka Okunomiya, Yusuke Sagae, Masumi Sunada, Mana Taki, Masayo Ukita, Yasuhisa Kurata, Yuki Himoto, Aki Kido, Akihito Horie, Ken Yamaguchi, Junzo Hamanishi, Masaki Mandai","doi":"10.1007/s13691-022-00590-7","DOIUrl":"10.1007/s13691-022-00590-7","url":null,"abstract":"<p><p>Para-ovarian cysts are occasionally encountered in clinical practice; however, malignant tumors derived from them are rare. Due to its rarity, the characteristic imaging findings of para-ovarian tumors with borderline malignancy (PTBM) are largely unknown. Herein, we report a case of PTBM, along with imaging findings. A 37-year-old woman came to our department with a suspected malignant adnexal tumor. Pelvic contrast-enhanced magnetic resonance imaging (MRI) revealed a solid part within the cystic tumor with a decrease in the apparent diffusion coefficient (ADC) value (1.16 × 10<sup>-3</sup> mm<sup>2</sup>/s). We also performed Positron Emission Tomography-MRI and showed a strong accumulation of 18F-fluorodeoxyglucose (FDG) in the solid part (SUVmax = 14.8). In addition, the tumor appeared to develop independently of the ovary. Because tumor was derived from para-ovarian cyst, we suspected PTBM preoperatively and planned fertility sparing treatment. Pathological examination revealed a serous borderline tumor and PTBM was confirmed. PTBM can have unique imaging characteristics, including a low ADC value and high FDG accumulation. When a tumor appears to develop from para-ovarian cysts, borderline malignancy can be suspected, even if imaging findings suggest malignant potential.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"126-130"},"PeriodicalIF":0.7,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9093602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Surgical resection of primary leiomyosarcoma of retro-hepatic inferior vena cava extending from bilateral renal veins across the diaphragm.","authors":"Yohei Inoguchi, Koji Hatano, Taigo Kato, Atsunari Kawashima, Toyofumi Abe, Shinichiro Fukuhara, Motohide Uemura, Hiroshi Kiuchi, Ryoichi Imamura, Norio Nonomura","doi":"10.1007/s13691-022-00589-0","DOIUrl":"10.1007/s13691-022-00589-0","url":null,"abstract":"<p><p>Vascular leiomyosarcoma of the inferior vena cava is a rare malignant soft tissue tumor that requires surgical treatment to prevent tumor-related symptoms such as pulmonary embolism and Budd-Chiari syndrome. However, a treatment strategy for surgical resection of advanced cases has not yet been determined. This report describes the case of advanced leiomyosarcoma of the inferior vena cava that was successfully treated with surgery and subsequent chemotherapy. A 44-year-old man was found to have a 12 × 10 cm retroperitoneal tumor on computed tomography. The tumor originated in the inferior vena cava and extended beyond the diaphragm into the renal vein. The surgical plan was determined in joint consultation with the multidisciplinary team. It was safely resected and the inferior vena cava was closed caudal to the porta hepatis without a synthetic graft. The tumor was diagnosed as leiomyosarcoma. Doxorubicin, followed by pazopanib were administered as treatment for metastatic disease. Eighteen months after the surgery, the patient's performance status was maintained.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"115-119"},"PeriodicalIF":0.7,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989117/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9086355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Primary esophageal malignant melanoma without recurrence after surgery and adjuvant therapy with nivolumab.","authors":"Sho Nambara, Yoshihisa Sakaguchi, Yasuo Tsuda, Kensuke Kudou, Eiji Kusumoto, Rintaro Yoshida, Tetsuya Kusumoto, Koji Ikejiri","doi":"10.1007/s13691-022-00582-7","DOIUrl":"10.1007/s13691-022-00582-7","url":null,"abstract":"<p><p>Primary malignant melanoma of the esophagus is a rare disease with a severely poor prognosis. Here, we report a patient with primary malignant melanoma of the esophagus surviving without recurrence after surgery and adjuvant therapy with nivolumab. The patient was a 60-year-old female with dysphagia. Esophagogastroscopy showed an elevated dark brown tumor in the lower thoracic esophagus. A histological examination of the biopsy revealed human melanoma black 45 and melan-A positivity. The patient was diagnosed with primary malignant melanoma of the esophagus and was treated with radical esophagectomy. As postoperative treatment, the patient was given nivolumab (240 mg/body) every 2 weeks. Although bilateral pneumothorax occurred after 2 courses, she recovered after chest drainage. Nivolumab treatment is still ongoing over 1 year after the surgery, and the patient has survived without recurrence. We conclude that nivolumab is an optimal option as a postoperative adjuvant treatment for PMME.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"100-103"},"PeriodicalIF":0.7,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989119/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9093600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liver metastases of a neuroendocrine tumor arising from a tailgut cyst treated with interventional locoregional therapies: a case report and review of the literature on recurrent cases.","authors":"Kosuke Fujimoto, Fumikazu Koyama, Hiroyuki Kuge, Shinsaku Obara, Yosuke Iwasa, Takeshi Takei, Tadataka Takagi, Tomomi Sadamitsu, Suzuka Harada, Tomoko Uchiyama, Chiho Ohbayashi, Hideyuki Nishiofuku, Toshihiro Tanaka, Masayuki Sho","doi":"10.1007/s13691-022-00587-2","DOIUrl":"10.1007/s13691-022-00587-2","url":null,"abstract":"<p><p>A tailgut cyst is a rare, developmental cyst occurring in the presacral space. Although primarily benign, malignant transformation is a possible complication. Herein, we report a case of liver metastases after resection of a neuroendocrine tumor (NET) arising from a tailgut cyst. A 53-year-old woman underwent surgery for a presacral cystic lesion with nodules in the cyst wall. The tumor was diagnosed as a Grade 2 NET arising from a tailgut cyst. Thirty-eight months after surgery, multiple liver metastases were identified. The liver metastases were controlled with transcatheter arterial embolization and ablation therapy. The patient has survived for 51 months after the recurrence. Several NETs derived from tailgut cysts have been previously reported. According to our literature review, the proportion of Grade 2 tumors in NETs derived from tailgut cysts was 38.5%, and four of the 5 cases of Grade 2 NETs (80%) relapsed, while all eight cases of Grade 1 NETs did not relapse. Grade 2 NET may be a high-risk group for recurrence in NETs arising from tailgut cysts. The percentage of Grade 2 NETs in tailgut cysts was higher than that of rectal NETs, but lower than that of midgut NETs. To the best of our knowledge, this is the first case of liver metastases of a neuroendocrine tumor arising from a tailgut cyst that was treated with interventional locoregional therapies, and the first report to describe about the degree of malignancy of neuroendocrine tumors originating from tailgut cysts in terms of the percentage of Grade 2 NETs.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"93-99"},"PeriodicalIF":0.7,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989112/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9086357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Myocarditis associated with immune-checkpoint inhibitors diagnosed by cardiac magnetic resonance imaging.","authors":"Masafumi Fukumitsu, Ryo Ariyasu, Mitsutomi Ishiyama, Toshiaki Mochizuki, Koichi Takeda, Makiko Ono, Takuya Oyakawa, Aya Ebihara, Aya Nishizawa, Junichi Tomomatsu, Takahiro Kogawa, Shigehisa Kitano, Taro Shiga","doi":"10.1007/s13691-022-00588-1","DOIUrl":"10.1007/s13691-022-00588-1","url":null,"abstract":"<p><p>Myocarditis associated with immune-checkpoint inhibitors (ICIs) is a rare, but critical adverse event. Although endomyocardial biopsy (EMB) is the standard for diagnosis of myocarditis, there is a possibility of false negatives due to sampling errors and local nonavailability of EMB, which may hamper the appropriate diagnosis of myocarditis. Therefore, an alternative criterion based on cardiac magnetic resonance imaging (CMRI) combined with clinical presentation has been proposed, but not emphasized sufficiently. We report a case of myocarditis after ICIs administration, which was diagnosed using CMRI in a 48-year-old male with lung adenocarcinoma. CMRI provides an opportunity to diagnose myocarditis during cancer treatment.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"109-114"},"PeriodicalIF":0.7,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9086354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metastatic prostate cancer with low PSA levels diagnosed after holmium laser enucleation of the prostate.","authors":"Kosuke Ogawa, Ryota Kitabayashi, Masayuki Kurokawa, Yoshiyuki Okada, Shunsuke Uno, Shinsuke Shibuya, Kazutoshi Okubo","doi":"10.1007/s13691-022-00586-3","DOIUrl":"10.1007/s13691-022-00586-3","url":null,"abstract":"<p><p>Holmium laser enucleation of the prostate is a widely accepted surgical treatment method for benign prostate hyperplasia, but its effect on prostate cancer remains unclear. In this study, we report the cases of two patients with metastatic prostate cancer diagnosed during follow-up after holmium laser enucleation of the prostate. Case 1 was a 74 year-old man who underwent holmium laser enucleation of the prostate. Prostate-specific antigen levels declined from 4.3 to 1.5 ng/mL at 1 month after surgery, but after 19 months, they increased to 6.6 ng/mL. Based on pathological and radiological findings, he was diagnosed as having prostate cancer, with Gleason score 5 + 4 with neuroendocrine differentiation, cT3bN1M1a. Case 2 was a 70 year-old man who also underwent holmium laser enucleation of the prostate. Prostate-specific antigen levels declined from 7.2 to 2.9 ng/mL at 6 months after surgery, but after 12 months, they increased to 12 ng/mL. Based on pathological and radiological findings, he was diagnosed as having prostate cancer, with Gleason score 4 + 5 with intraductal carcinoma of the prostate, cT3bN1M1a. This report suggests that advanced prostate cancer may be newly diagnosed after holmium laser enucleation of the prostate. Even if prostate cancer had not been demonstrated in the enucleated specimen, and postoperative PSA levels were below the standard values, physicians should regularly monitor prostate-specific antigen levels after holmium laser enucleation of the prostate, and further examination should be considered keeping in mind prostate cancer progression.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 2","pages":"104-108"},"PeriodicalIF":0.7,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9989107/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9086359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A rare case of unresectable, microsatellite instability-high hepatocellular carcinoma and an examination of the tumor microenvironment.","authors":"Takahiro Tomiyama, Shinji Itoh, Katsuya Toshida, Akinari Morinaga, Yukiko Fujimoto-Kosai, Takahiro Tomino, Takeshi Kurihara, Yoshihiro Nagao, Kazutoyo Morita, Noboru Harada, Kenichi Kohashi, Yuichiro Eguchi, Yoshinao Oda, Masaki Mori, Tomoharu Yoshizumi","doi":"10.1007/s13691-022-00585-4","DOIUrl":"10.1007/s13691-022-00585-4","url":null,"abstract":"<p><p>Hepatocellular carcinoma (HCC) is a common cause of cancer-related deaths worldwide, and the mortality rate of patients with unresectable HCC is very high. Microsatellite instability (MSI) is an essential biomarker for response to immune checkpoint inhibitors (ICI) in various tumors. However, the frequency of MSI in HCC is low (1.11%). There is only one case report of MSI-high HCC, and it is not well understood how high MSI affects the tumor microenvironment of HCC. Hence, we describe an interesting patient with unresectable MSI-high HCC, including the evaluation of immune status in the tumor microenvironment. A 68-year-old man presented to our department with HCC in liver segment 1. Contrast-enhanced CT revealed a liver tumor of 6.0 cm in maximum size. The patient underwent extended left and caudate lobectomy of the liver for HCC. Four months after surgical resection, contrast-enhanced computed tomography (CECT) detected 13 recurrent nodules. The patient was diagnosed with unresectable hepatocellular carcinoma recurrence, and we decided to administer systematic chemotherapy. Lenvatinib was administered over approximately 2 years as a first-line treatment, which resulted in intrahepatic tumor shrinkage. However, follow-up CECT showed new lesions, hepatogastric mesentery lymph node swelling, and peritoneal dissemination. After MSI-high status was identified, the patient began to receive pembrolizumab (200 mg, every 3 weeks). Eleven cycles of pembrolizumab therapy were administered over approximately 8 months, during which the diameter of the hepatogastric mesentery lymph node swelling and peritoneal dissemination showed shrinkage but later re-increased. As the third- and fourth-line therapy has been administered, the tumors and lymph nodes have shrunk. We report a rare case in which multikinase inhibitors were effectively used to treat MSI-high HCC.</p>","PeriodicalId":13703,"journal":{"name":"International Cancer Conference Journal","volume":"12 1","pages":"81-86"},"PeriodicalIF":0.7,"publicationDate":"2022-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10490246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}