Prognostic value of pretreatment volume-based quantitative 18F-FDG PET/CT parameters in patients with malignant pleural mesothelioma

PurposeTo investigate the relationships between pretreatment volume-based quantitative ¹⁸F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) parameters and overall survival (OS) in patients with malignant pleural mesothelioma (MPM).Materials and methodsWe retrospectively reviewed data from 201 MPM patients, of whom 38 underwent surgical resection, and calculated the maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG), including primary tumors and nodal or distant metastatic lesions, on pretreatment ¹⁸F-FDG PET/CT. Relationships between clinicopathological factors (age, sex, performance status, European Organization for Research and Treatment of Cancer [EORTC] score, histological subtype, TNM stage, and treatment strategy), volume-based quantitative PET/CT parameters, and OS were evaluated using a Cox proportional hazards model and log-rank test.ResultsThe median follow-up was 15 months (range, 1–96 months; median, 17 months). In a univariate analysis of all patients, older age (p < 0.05), high EORTC score (p < 0.001), non-epithelioid histological subtype (p < 0.001), high T stage (p < 0.001), positive N/M status (p < 0.05, p < 0.001), advanced TNM stage (p < 0.001), non-surgical treatment (p < 0.001), and high SUVmax (p < 0.001), MTV (p < 0.001), or TLG (p < 0.001) were associated with significantly shorter OS. A multivariate analysis confirmed non-epithelioid subtype (hazard ratio [HR]: 1.69, 95% confidence interval [CI]: 1.14–2.48; p < 0.05), non-surgical treatment (HR: 0.58, 95% CI: 0.34–0.95; p < 0.05), and high TLG (HR: 1.97, 95% CI: 1.14–3.44; p < 0.05) as independent negative predictors.ConclusionsPretreatment volume-based quantitative ¹⁸F-FDG PET/CT parameters, especially TLG, could serve as potential surrogate markers for MPM prognosis.     

18F-FDG PET/CT in a recurrent diffuse malignant peritoneal mesothelioma

Peritoneal mesothelioma is a rare and aggressive tumor. Early diagnosis of the disease is difficult, delaying effective treatment. We report a case of recurrent, biphasic, diffuse, malignant peritoneal mesothelioma. Initial abdominal computed tomography showed abnormal but nonspecific findings suggestive of an ovarian malignancy, with a negative endoscopy and laboratory studies. An abdominal exploratory laparotomy found widespread malignancy within the peritoneum with a pathological diagnosis of peritoneal mesothelioma. A PET/CT imaging showed diffusely increased metabolic activity throughout the peritoneum, with no evidence of thoracic or pleural involvement. This case demonstrates the PET/CT findings seen with malignant recurrent peritoneal mesothelioma.     

18F-FDG PET/CT in suspected recurrences of epithelial malignant pleural mesothelioma in asbestos-fibers-exposed patients (comparison to standard diagnostic follow-up)

This retrospective study evaluated the role of 18-fluorine-labeled 2-deoxy-2-fluoro-d-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) in patients with previous occupational or environmental exposure to asbestos, with histopathological diagnosis of epithelial malignant pleural mesothelioma and suspected recurrences, comparing the data from 18F-FDG PET/CT and computed tomography with contrast enhancement (CECT). 18F-FDG PET/CT has greater sensitivity than CECT in identifying local extent, lymph nodes, and metastasis. 18F-FDG PET/CT whole-body explorations are useful to monitor the follow-up and evaluate the metabolic response to chemo- and radiotherapy, modifying the scheduled treatment plan.     

18F-FDG PET/CT显像诊断心包恶性病变的价值

目的 评价18F-脱氧葡萄糖（FDG）PET/CT对心包恶性病变的诊断价值.方法 对23例心包积液患者进行18F-FDG PET/CT显像,并采用两独立样本非参数检验分析良恶性病灶最大标准摄取值（SUVmax）差异有无统计学意义.结果 经病理检查证实恶性心包积液14例,良性心包积液9例.1例PET/CT假阴性,2例PET/CT假阳性.18F-FDG PET/CT鉴别诊断良恶性心包积液的灵敏度、特异性、准确性、阳性预测值、阴性预测值分别为92.9%（13/14）、7/9、87.0%（20/23）、86.7%（13/15）和7/8.良、恶性病变的SUVmax中位值分别为2.2和6.0,两者间比较差异有统计学意义（z=-3.279,P=0.001）.结论 18F-FDG PET/CT是评价心包恶性病变较好的无创性手段,对良恶性心包积液的诊断与鉴别诊断有一定临床价值.     

18F-FDG PET/CT显像诊断心包恶性病变的价值

Objective To assess the value of integrated 18 F-fluorodeoxyglucose (FDG) PET/CT in differentiation of malignant and benign pericardial effusion. Methods 18F-FDG PET/CT were performed in 23 patients with pericardial effusion. The detected soft tissue tumor or nodulous lession in pericardium or the thickened pericardium, with the maximum standardized uptake value( SUVmax ) ≥2.5, was defined as PET/CT-positive. The invaded lession in pericardium with SUVmax ≥2.5 was also as the positive. The difference of SUVmax of benign and malignant lesions was analyzed with two-independent-sample test of nonparametric tests. The final diagnosis was confirmed by biopsy or post-operative pathology. Results The diagnosis were confirmed with 14 malignant and 9 benign lesions. The median of SUVmax was 6.0 in malignancy group and 2.2 in benign group (z= -3. 279, P =0.001 ). According to the pathology results, there were one false negative case and two false positive cases with PET/CT imaging interpretation. The sensitivity, specificity,accuracy, positive predictive value ( PPV ) and negative predictive value ( NPV ) of 18 F-FDG PET/CT in diagnosis of benignity or malignance of pericardium effusion were 92.9% ( 13/14), 7/9, 87.0% (20/23),86.7% (13/15) and 7/8, respectively. Conclusion For the patients with pericardium effusion 18F-FDG PET/CT may be a helpful modality for malignancy differentiation     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

目的 探讨18F-脱氧葡萄糖(FDG)PET/CT显像在恶性胸膜间皮瘤(MPM)诊断中的临床价值及原发肿瘤病灶平均标准摄取值(SUVmax)对患者预后的判断价值.方法 回顾性总结17例2002-2008年临床疑诊MPM患者18F-FDG PET/CT显像资料,测量病灶的SUVmax.将病理检查及临床随访证实的MPM患者按照有无转移分为2组,测定每例患者原发肿瘤病灶的SUVmax,用受试者工作特征(ROC)曲线评价SUVmax对患者转移与否的诊断价值,判断预后.采用SPSS 11.0软件进行t检验.结果 经病理及随访结果证实MPM 12例,良性胸膜病变5例,二者的SUVmax分别为5.78±1.81和2.72±2.51,差异有统计学意义(t=2.8,P<0.05).全身18F-FDG PET/CT显像诊断MPM的灵敏度为100%(12/12),特异性为4/5,准确性为94%(16/17),18F-FDG PET/CT显像有7例MPM伴有骨和(或)淋巴结转移.SUVmaxROC曲线分析表明曲线下面积(AUC)为0.80.结论 全身18F-FDG PET/CT显像对于MPM的诊断有重要价值.原发肿瘤病灶SUVmax越高越易发生转移,预后越差.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

18F-FDG PET/CT显像在恶性胸膜间皮瘤诊断中的价值

Objective Malignant pleural mesothelioma (MPM) is an uncommon neoplasm arising from mesothelial cells of the pleura. The prognosis is poor with median survival of 4- 12 months. The aim of this study was to evaluate the clinic value of 18F-fluorodeoxyglucose (FDG) PET/CT imaging in the diagno-sis and to staging of MPM and to determine if the mean standardized uptake value (SUVmax) of primary tumor correlates with staging and prognosis. Methods Study was conducted retrospectively including 17 pa-tients with clinical suspicion of MPM from 2002 to 2008. Twelve cases of MPM and 5 cases benign pleural pa-thology were proven by histopathology and clinical follow-up. 18F-FDG PET/CT imaging was performed 1 h af-ter injection of 7.4 MBq/kg 18F-FDG. Patients with MPM confirmed by histopatholagy were divided into two groups: with and without metastasis. PET/CT findings were analyzed to determine if SUVmax of primary tumor correlates with staging and prognosis. Receiver operating characteristic (ROC) curve of SUVmax of primary tumor was evaluated to determine if it was a predictor of metastasis and survival time. Results The difference in SUVmax between MPM and benign pleural were statistical significant (5.78±1.81 vs 2.72± 2.51, t = 2. 8, P < 0.05). The diagnostic sensitivity, specificity and accuracy of 18F-FDG PET/CT imaging for MPM were 100% (12/12) , 4/5 and 94% (16/17). All 7 cases of bone and lymph node metastases were detected by 18F-FDG PET/CT imaging. Area under the curve (AUC) was 0.80. Conclusions 18F-FDG PET/CT imaging is useful in the diagnosis and staging of MPM. High SUVmax in the primary tumor correlates well with prognosis and predication of a greater propensity to have nodal and distant metastasis.     

A case of primary pericardial mesothelioma detected by 18F-FDG PET/CT

Primary pericardial mesothelioma is an extremely rare malignancy. We report a case of a 58-year-old woman who presented with fever and fatigue. She had no apparent history of occupational or incidental exposure to asbestos. A postcontrast-enhanced chest CT revealed a 77 × 56-mm mass lesion in the pericardium. The FDG PET/CT was carried out, which demonstrated an intense FDG uptake to a main pericardial tumor and disseminated lesions in the pericardium. Histologic examination confirmed the primary malignant pericardial mesothelioma.