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Lv H, Shao Y, Chen QS, Song WJ, Peng LN, Zhong DS. A case of endobronchial metastasis of colon cancer mimics sarcoidosis, and a review of related literature. J Cancer Res Clin Oncol 2023; 149:15287-15292. [PMID: 37594535 DOI: 10.1007/s00432-023-05214-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/26/2023] [Indexed: 08/19/2023]
Abstract
PURPOSE Endobronchial metastases (EBM) are defined as bronchoscopically visible lesions histopathologically identical to extrapulmonary tumors. We summarized the literature on endobronchial metastasis of colorectal cancer and give a brief review. METHOD We present a rare case with an episode mistaken for sarcoidosis and unexpectedly identified as colon cancer by bronchoscopic biopsy. A 53-year-old man with dry cough and dyspnea had diffuse micro lung nodules and lymphadenopathy on CT and PET/CT. He was diagnosed with sarcoidosis and took steroid therapy, but the symptoms could not be alleviated. Bronchoscopy was suggested. He was finally identified with colon cancer by bronchoscopic biopsy, which was confirmed by endoscopic biopsy. We summarise the clinical manifestations, imaging, prognosis of EMB of colorectal cancer. RESULT EBM are rare. Colorectal cancer is common in EBM and the frequency is increasing. CONCLUSION EBM should be distinguished from primary lung cancer, sarcoidosis.
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Affiliation(s)
- Hui Lv
- Department of Oncology, Tianjin Medical University General Hospital, No.154, Anshan Road, Tianjin, 300052, People's Republic of China.
| | - Yi Shao
- Department of Oncology, Tianjin Medical University General Hospital, No.154, Anshan Road, Tianjin, 300052, People's Republic of China
| | - Qiu-Song Chen
- Department of PET/CT Diagnostic, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China
| | - Wen-Jing Song
- Department of Pathology, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China
| | - Li-Na Peng
- Department of Pneumology, Jining No. 1 People's Hospital, Jining, 272002, People's Republic of China
| | - Dian-Sheng Zhong
- Department of Oncology, Tianjin Medical University General Hospital, No.154, Anshan Road, Tianjin, 300052, People's Republic of China.
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The Effects of circ_000558/miR-1225-5p/ARL4C on Regulating the Proliferation of Renal Cell Carcinoma Cells. JOURNAL OF ONCOLOGY 2023; 2023:1303748. [PMID: 36778920 PMCID: PMC9911241 DOI: 10.1155/2023/1303748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 02/05/2023]
Abstract
Renal cell carcinoma (RCC) is one of the top ten tumors over the world. RCC is not sensitive to radiotherapy and chemotherapy. Therefore, it is necessary to find new targets for the treatment. CircRNAs are a special type of noncoding RNAs, which play important roles in many types of cancer. In this study, we found circ_000558 was upregulated in RCC cells, and it elevated the proliferation ability of RCC cells. The relationship between miR-1225-5p and circ_000558 or ARL4C was predicted via circBank and circular RNA interactome and confirmed by dual-luciferase reporter assay. Then, the effects of circ_000558/miR-1225-5p/ARL4C on RCC cell proliferation and apoptosis were assessed by CCK-8 assay. The results revealed that the knockdown of ARL4C significantly reduced RCC cell proliferation and overexpression of circ_000558 could significantly induce RCC cell proliferation after miR-1225-5p treatment further promoted the inhibitory ability of ARL4C knockdown. Overall, our study suggested that circ_000558/miR-1225-5p/ARL4C network was related to the RCC cell proliferation. This finding could provide new targets for the treatment and prognosis of RCC.
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Endobronchial metastasis secondary to occulting renal cell carcinoma: literature review and a rare case report. BMC Pulm Med 2023; 23:28. [PMID: 36653795 PMCID: PMC9850687 DOI: 10.1186/s12890-023-02320-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 01/10/2023] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Endobronchial Metastasis from extrathoracic tumors is a rare neoplasm that accounts for approximately 1.1% of total endobronchial malignancies. The most common primary tumors associated with EBM are from the colorectal, breast, and kidney regions. Although it represents a late manifestation in the context of tumor progression, it can rarely antedate the diagnosis of the primary tumor. CASE PRESENTATION A 67-years-old male was referred from another city hospital to our thoracic surgery department due to a 4-months history of hemoptysis and productive cough. A chest X-ray and computed tomography scan showed a soft-tissue mass within the left main bronchus and atelectasis of the anterior segment of the left upper lobe. Furthermore, a flexible bronchoscopy revealed a hypervascular lesion occluding completely the left upper lobe bronchus. The patient underwent lobectomy and pathological examination suggested endobronchial metastasis from clear cell renal cell carcinoma. A second computed tomography scan of the abdomen and pelvis showed a well-defined mass arising from the lateral aspect of the right kidney; therefore, the patient underwent right radical nephrectomy three weeks later and pathology confirmed the diagnosis of clear renal cell carcinoma with endobronchial metastasis. CONCLUSION Despite its rarity, physicians should consider the possibility of endobronchial metastases in the setting of endobronchial lesions. Proper diagnostic approaches should also be considered to rule out the potential of asymptomatic extrathoracic neoplasms. In this manuscript, we aimed to report a rare case -the first from Syria to our knowledge- of an endobronchial metastasis that preceded the diagnosis of renal cell carcinoma. Importantly, we reviewed the existing literature and discussed the diagnostic and treatment approaches.
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Tang H, He Y, Wang L, Wu G, Wang L, Xu Y, Guo D. Coexistence of primary pulmonary meningioma and metastatic papillary renal cell carcinoma of the lung: A rare case report with review of the literature. Medicine (Baltimore) 2022; 101:e32157. [PMID: 36550861 PMCID: PMC9771236 DOI: 10.1097/md.0000000000032157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
RATIONALE Primary pulmonary meningioma (PPM) is extremely rare tumor and only a few reports have been reported to date. PPM may be overlooked when it coexists with other types of tumors in the lung. It is essential to have a knowledge of the clinicopathological features of PPM and to recognize this rare coexistence. PATIENT CONCERNS A 57-year-old male underwent surgery for papillary renal cell carcinoma, when 2 pulmonary nodules were detected using chest computed tomography. DIAGNOSIS The coexistence of benign PPM and metastatic papillary renal cell carcinoma was histologically confirmed. INTERVENTIONS A lobectomy was performed. OUTCOMES The patient recovered well after surgery and was discharged on postoperative day 4. LESSONS Duo to the rarity of PPM, it is easily overlooked, especially when it coexists with other tumors in the lung. The possibility of PPM needs to be taken into account when diagnosing pulmonary nodules in clinical practice.
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Affiliation(s)
- Hao Tang
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Yutao He
- Department of Laboratory Medicine, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Long Wang
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Guomin Wu
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Lina Wang
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Yujuan Xu
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
| | - Deyu Guo
- Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province, China
- * Correspondence: Deyu Guo, Department of Pathology, Guiqian International General Hospital, Guiyang, Guizhou Province 550000, China (e-mail: )
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Hagen F, Peisen F, Spogis J, Mair A, Nikolaou K, Stenzl A, Kruck S, Bedke J, Kaufmann S, Thaiss WM. Is a single portal venous phase in contrast-enhanced CT sufficient to detect metastases or recurrence in clear cell renal cell carcinoma? – a single-center retrospective study. Cancer Imaging 2022; 22:9. [PMID: 35063030 PMCID: PMC8781093 DOI: 10.1186/s40644-022-00444-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 01/01/2022] [Indexed: 11/10/2022] Open
Abstract
Background This study aims at describing the imaging features of the metastatic presentation of clear cell renal cell carcinoma (ccRCC) in arterial (AP) and portal venous phase (PVP) of contrast-enhanced-computed-tomography (CECT) during clinical follow-up (FU) and to evaluate the necessity of a dual phase approach for metastasis detection. Methods We identified a total of 584 patients that were diagnosed with ccRCC between January 2016 and April 2020. Inclusion criteria were histologically proven ccRCC with metastatic spread, proven by histology or interim follow-up of at least 2 years and follow-up CT examination with AP and PVP CECT including thorax/abdomen and pelvis. Exclusion criteria were defined by missing or incomplete CT-scans or lack of sufficient follow-up. CT studies of 43 patients with histologically proven ccRCCs were analyzed in retrospect. AP and PVP images were analyzed by two radiologists for metastases, two additional independent radiologists analyzed PVP images only. A 5-point Likert scale was used to evaluate the likelihood off the presence of metastasis. Imaging patterns of the metastases were analyzed visually. Results 43 patients (16 female; mean age: 67±10 years) with recurrent ccRCC and metastatic disease were included. Three imaging patterns were observed (solid, heterogeneous or cystic metastases), which rarely exhibited calcifications (2%). All metastases showed hyperenhancement in AP and PVP. Inter-reader agreement was substantial (Fleiss’ κ 0.6–0.8, p<0.001). No significant differences in sensitivity or specificity between readers (AP and PVP images vs. PVP images only) were present (79.4-85.2%, 97.1-99.6%, p ≥ 0.05). The area under the receiver-operating-characteristic (ROC) curve was between 0.901and 0.922 for all four radiologists. Conclusions Similar rates for detection, sensitivity and specificity of metastasis and local recurrence in ccRCC were observed irrespective of using a dual-phase protocol with AP and PVP or a single PVP protocol only. Thus, a single-phase examination of PVP can be sufficient for experienced radiologists to detect metastatic disease in the follow-up of ccRCC patients.
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Jin C, Shi L, Li K, Liu W, Qiu Y, Zhao Y, Zhao B, Li Z, Li Y, Zhu Q. Mechanism of tumor‑derived extracellular vesicles in regulating renal cell carcinoma progression by the delivery of MALAT1. Oncol Rep 2021; 46:187. [PMID: 34278501 PMCID: PMC8298989 DOI: 10.3892/or.2021.8138] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 04/28/2021] [Indexed: 02/06/2023] Open
Abstract
Renal cell carcinoma (RCC) is a major healthcare burden globally. Tumor-derived extracellular vesicles (EVs) contribute to the formation of a pro-metastatic microenvironment. In the present study, we explored the role and mechanism of RCC cell 786-O-derived EVs (786-O-EVs) in RCC. First, 786-O-EVs were extracted and identified, and EV internalization of RCC cells was observed. RCC cell malignant behaviors and long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) expression patterns were detected before and after 786-O-EV treatment. MALAT1 was intervened to evaluate RCC cell behaviors. The downstream mechanism involving MALAT1 was predicted. In addition, the relationship among MALAT1, transcription factor CP2 like 1 (TFCP2L1) and ETS proto-oncogene 1, transcription factor (ETS1) was analyzed. TFCP2L1 expression patterns were measured after 786-O-EV exposure. Tumor xenograft formation assay and lung metastasis model were adopted to verify the role of 786-O-EVs in vivo in RCC. It was found that 786-O-EVs could be internalized by RCC cells. 786-O-EVs promoted RCC cell malignant behaviors, accompanied by elevated MALAT1 expression levels. The 786-O-EVs with MALAT1 knockdown attenuated the promotive effect of sole 786-O-EVs on RCC cells. MALAT1 located ETS1 in the TFCP2L1 promoter and negatively regulated TFCP2L1, and ETS1 protein could specifically bind to MALAT1. 786-O-EVs enhanced the binding of ETS1 and the TFCP2L1 promoter and decreased TFCP2L1 expression. In vivo, 786-O-EVs promoted tumor growth and RCC lung metastasis, which was suppressed following inhibition of MALAT1. Our findings indicated that 786-O-EVs promoted RCC invasion and metastasis by transporting MALAT1 to promote the binding of transcription factor ETS1 and TFCP2L1 promoter.
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Affiliation(s)
- Chengluo Jin
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Linmei Shi
- School of Health Management, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Kunlun Li
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Wei Liu
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Yu Qiu
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Yakun Zhao
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Bai Zhao
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Zhexun Li
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Yifei Li
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
| | - Qingguo Zhu
- Department of Urology, The Second Affiliated Hospital, Harbin Medical University, Nangang, Harbin, Heilongjiang 150086, P.R. China
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Zhang GL, Chen S, Li JD, Wang CG. Endobronchial Metastasis of Renal Carcinoma: A Case Report and Review of Previous Literature. Front Surg 2021; 8:658749. [PMID: 34095203 PMCID: PMC8175964 DOI: 10.3389/fsurg.2021.658749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/06/2021] [Indexed: 11/27/2022] Open
Abstract
The definition of endobronchial metastasis (EBM) lacks clarity because it is currently based on the judgments of surgeons; it is rare in patients with nonpulmonary malignancies. Although EBM represents an advanced stage of malignancy, it does not necessarily indicate a poorer prognosis than that for its primary tumors. The present study defines EBM as bronchoscopy-visible lesions with histologically confirmed primary extrapulmonary tumors, excluding those primary lung tumors with involvement of the bronchial lumen. A bronchoscopy and biopsy provide strong proof for diagnosis. Complete surgical resection is the best choice for patients with EBM. This study analyzed the case of a 69-year-old male patient who had undergone a radical left nephrectomy several years previously after the identification of a bronchoscopy-visible lesion in the left main bronchus. The lesion was initially diagnosed as an angiogenic tumor but was eventually confirmed by surgical biopsy as EBM from the left kidney. After diagnosis, the patient underwent a left pneumonectomy. The analysis of this case focused on diagnosis, symptoms, radiographic findings, treatment, and prognosis. A review of the previous literature relating to EBM was also conducted.
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Affiliation(s)
- Guang-Lei Zhang
- Department of Thorax, Second Hospital of Jilin University, Changchun, China
| | - Shu Chen
- Department of Thorax, Second Hospital of Jilin University, Changchun, China
| | - Jin-Dong Li
- Department of Thorax, Second Hospital of Jilin University, Changchun, China
| | - Chun-Guang Wang
- Department of Thorax, Second Hospital of Jilin University, Changchun, China
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