用全身PET/CT寻找转移瘤患者的原发灶

目的:对不明原因转移瘤患者,探讨利用正电子发射计算机断层显像（positron emission tomography/computed tomography,PET/CT）寻找肿瘤原发灶的临床价值。方法:回顾性收集经病理学证实或影像学检查诊断为转移瘤的137例住院患者的临床及PET/CT成像资料,计算全身PET/CT显像对不明原因转移瘤患者肿瘤原发灶的检出率,分析不同部位转移瘤原发灶检出率间的差异。结果:确诊1例淋巴瘤患者被排除,18F-FDG PET/CT正确检出原发病灶89例,检出率为65.4%（89/136）。18F-FDG PET/CT对于淋巴结转移、骨转移、肝转移及脑转移瘤肿瘤原发灶检出率分别为63.2%（36/57）、60.0%（18/30）、86.7%（13/15）和57.1%（8/14）。结论:全身PET/CT显像在不明原因转移瘤寻找肿瘤原发灶方面具有重要临床应用价值。     

18F-FDG PET/CT在寻找颈淋巴结转移瘤原发灶中的应用价值

背景与目的:颈部淋巴结转移瘤在颈部恶性肿瘤中最常见,原发灶检出与否直接影响患者的生存期和生活质量.本研究旨在评估18F-FDG PET/CT在寻找颈淋巴结转移瘤原发灶中的应用价值;另外,设定不同的PET/CT原发灶诊断标准,分别评价其阳性预测价值.方法:对93例病理学诊断为颈淋巴结转移瘤的患者行18F-FDG PET/CT显像,根据不同的PET/CT原发灶诊断标准寻找原发灶,即明确诊断、可疑诊断及未见原发灶征象;所有PET/CT诊断均与病理或其它影像检查相对照.结果:PET/CT明确诊断原发灶40例,均经病理或临床证实,阳性预测值100%;PET/CT可疑诊断28例,经病理证实为原发灶16例.其阳性预测值57.1%;2例患者经PET/CT提示为纵隔淋巴结转移但未见原发灶征象.最终临床诊断为原发纵隔型肺癌;2例患者PET/CT未见原发征象,经内窥镜检出原发灶;PET/CT原发灶检出率为60.2%(56/93).结论:18F-FDG PET/CT在寻找颈淋巴结转移瘤原发灶中有较大的临床价值.     

全身^18F-FDGPET／PET-CT在脑转移瘤寻找原发灶中的诊断价值

背景与目的：恶性肿瘤发生颅内转移十分常见，据统计其发生率约占颅内肿瘤的5％—20％。本文总结因脑转移瘤查原发灶的62例患者的原发灶发现情况及全身转移灶情况，旨在评价全身^18F-FDG PET／PET-CT在脑转移瘤寻找原发灶中的诊断价值。方法：对62例因脑转移瘤查找原发灶为主诉的肿瘤患者进行了回顾性分析。结果：本组62例患者中52例患者的原发灶位置得到了确诊，原发灶的检出率为83．8％(52／62)，其中原发性肺癌占55．7％(29／52)，所有肺癌中低分化腺癌占44．8％(13／29)。除可检出原发灶外，^18F-FDGPET／PET-CT全身显像还检出肺转移、淋巴结转移、骨转移、肝转移及其它少见部位的转移灶。全身行^18F-FDG PET-CT扫描对肿瘤原发灶的检出率为84．6％；行全身^18F-FDG PET扫描对肿瘤原发灶的检出率为82．6％；与^18F-FDG PET-CT相比，^18F-FDG PET图像对肺转移病灶的检出率仅为10．9％。结论：^18F-FDGPET／PET-CT的全身扫描有利于发现原发灶及其他转移灶。对恶性肿瘤发现方面具有重要的临床实用价值，     

18F-FDG PET/CT在心脏肿瘤诊断的临床应用价值

摘 要：［目的］ 评价18F-FDG PET/CT在心脏肿瘤诊断中的临床应用价值。［方法］ 回顾性分析自2014年10月至2017年3月在首都医科大学附属北京安贞医院行18F-FDG PET/CT全身显像的心脏肿瘤患者共27例,患者最终诊断以手术病理结果或随访结果为依据。18F-FDG PET/CT影像心脏占位病变可见明显异常FDG浓聚灶,SUVmax≥5.7判断为恶性病变可能大,并与最终诊断结果进行比较,分析18F-FDG PET/CT在心脏占位性病变良恶性的鉴别能力。采用两样本t检验分析数据。［结果］ 27例心脏肿瘤患者中,恶性11例,良性占位16例。18F-FDG PET/CT显像,恶性占位（n=11）平均SUVmax 9.03±4.5（2.0～15.9）明显高于良性心脏占位性病变（n=16）平均SUVmax 3.25±2.51（0.6～10.2）,差异有统计学意义（t=4.25,P<0.001）。将SUV≥5.7作为恶性诊断的阈值,18F-FDG PET/CT诊断心脏恶性肿瘤的灵敏度81.8% （9/11）,特异性93.8%（15/16）,准确率88.9%（24/27）。［结论］ 全身18F-FDG PET/CT检查对心脏肿瘤,特别是原发性心脏肿瘤良恶性诊断有重要的临床价值。     

18F-FDG PET/CT全身显像在寻找肿瘤原发灶中的临床价值

目的：回顾性探讨了^18F-FDG PET/CT显像在寻找肿瘤原发灶中的临床价值。方法：对33例原发灶不明转移癌（CUP）患者行^18F-FDG PET/CT全身显像,通过视觉判断和SUV测定对原发灶和转移灶进行判断,并经随访观察、综合诊断证实。结果：33个病例中找到原发灶者25例（75.8%,25/33）,其中肺癌9例,肝癌2例,鼻咽癌2例,甲状腺癌2例,乳腺癌、食管癌、胃癌、胰腺癌、肠癌、肾癌、前列腺癌、脑胶质瘤、淋巴瘤和腹膜后肌母细胞瘤各1例。结论：^18F-FDG PET/CT全身显像能有效地发现CUP患者的原发灶,一次扫描能了解全身各脏器病灶分布情况,这对选择正确的治疗方案、评价患者预后有着重要的临床意义。     

18F-FDGPET/CT全身显像对乳腺癌复发和转移诊断价值分析

目的:探讨18F-FDG PET/CT全身显像对治疗后乳腺癌复发和转移的诊断价值。方法:回顾性分析山东省肿瘤医院2004-12-01-2009-12-31行18F-FDG PET/CT显像检查的乳腺癌患者142例,统计18F-FDG PET/CT显像诊断的灵敏度、特异性和准确性,并与增强CT及全身骨扫描进行对比。结果:18F-FDG PET/CT和增强CT对乳腺癌复发和转移的灵敏度分别为85.5%(71/83)和77.1%(64/83),特异性分别为88.1%(52/59)和84.7%(50/59),准确性分别为86.6%(123/142)和80.3%(114/142)。18F-FDG PET/CT诊断淋巴结转移的阳性率为89.5%(34/38),高于增强CT的73.7%(28/38),P=0.031;对于局部复发、肺转移、肝转移和脑转移的诊断,18F-FDG PET/CT和增强CT差异无统计学意义;对于骨转移的诊断,18F-FDG PET/CT的灵敏度为70.0%,全身骨扫描为90.0%,两者的特异性分别为100.0%和58.3%。结论:18F-FDG PET/CT显像对治疗后乳腺癌复发和转移诊断具有较高的灵敏度和特异性,但对于不同部位转移灶的诊断应合理选择检查方法。     

18F-FDG PET/CT显像在胃癌诊断中的应用

[目的]评价18F-FDG PET/CT显像在胃癌诊断中的应用.[方法]49例经胃镜和病理确诊的胃癌患者进行18F-FDG PET/CT显像,其诊断结果与病理学检查、其他影像学检查及临床随访比较.[结果] 49例患者18F-FDG PET/CT阳性44例,阳性率89.8％;39例有淋巴结转移患者中18F-FDGPET/CT显像发现32例,灵敏度为82.1％(32/39); 12例有远处转移患者中18F-FDG PET/CT显像发现11例,灵敏度91.6％(11/12).[结论]18F-FDG PET/CT显像对胃癌原发灶、淋巴结转移和远处转移具有较高的灵敏度,18F-FDG PET/CT显像在胃癌诊断中具有较高的临床价值.     

PET/MR与PET/CT对18F-FDG PET阳性肝转移瘤病灶检出能力的比较

目的 比较一体化PET/MR和PET/CT对18F-FDG PET阳性肝转移瘤病灶的检出能力.方法 回顾性分析54例经病理及影像随访证实为肝转移瘤的患者.所有患者同一天先后行全身18F-FDG PET/CT显像及上腹部18F-FDG PET/MR局部显像.比较2种检查方法对PET阳性肝转移瘤患者及病灶的检出数量.并根据...     

18F-FDG PET显像在原发灶不明转移癌中的应用价值

目的 转移性肿瘤原发灶的定位对指导组织学诊断及选择治疗方式具有重要意义。本文对50例原发灶不明转移癌患者进行~(18)F-FDG PET全身显像,以评价其在探测原发灶中的价值。 方法 50例原发灶不明转移癌患者,男36例,女14例,其中颈部转移瘤18例,骨骼转移瘤15例,脑转移瘤12例,其他5例。所有患者均进行FDG PET全身显像,结果判断应用目测法和半定量分析方法(标准摄取值,SUV)。 结果 50例患者中,有32例PET可检出原发灶(64％),且经组织学或细胞学证实,其中肺癌17例,鼻咽癌9例,乳腺癌2例,卵巢癌、结肠癌、前列腺癌、甲状腺癌各1例。2例(4％)FDG PET呈假阳性,分别为子宮和结肠病变各1例。18例FDG PET显像原发灶不明者,经临床随访2～26个月,有2例发现原发灶,1例证实为前列腺癌,1例为粘液性胃癌。17例患者PET检出了其他部位的转移灶。 结论 PET一次检查可了解肿瘤原发灶及全身转移情况,包括骨骼及软组织的转移,对原发灶不明转移癌患者进行全身PET检查有助于原发灶的寻找,为临床制订治疗方案提供可靠依据。     

18F-FDG PET/CT与99Tcm-MDP骨显像在恶性肿瘤骨转移中的检查效能比较

目的:比较18F-FDG PET/CT与99Tcm-MDP骨显像对肿瘤骨转移灶的检出率,探讨两种方法在骨转移灶筛查中的价值。 方法:137例确诊恶性肿瘤患者在1月内分别进行99Tcm-MDP骨显像及18F-FDG PET/CT显像,比较分析两者对骨转移灶检出率的结果。结果:137例患者之中66例患者99Tcm-MDP骨显像为阳性,中轴骨、四肢骨均可出现,检出率为48.2%（66/137）; 71例骨显像阴性患者中有12例PET/CT结果为阳性。所有患者之中62例患者18F-FDG PET/CT为阳性,检出率为45.3%（62/137）,75例PET/CT阴性患者中有16例骨扫描结果为阳性。两种方法检出率之间比较（P=0.068）,差异无统计学意义;按四种骨质改变类型比较两种方法检出率（P=0.173）,差异无统计学意义;按CT溶骨性与成骨性类型分类比较两种方法（P=0.018）,两者差异有显著性意义。结论:18F-FDG PET/CT与99Tcm-MDP骨显像筛查恶性肿瘤骨转移灶效能无明显差别,18F-FDG PET/CT优势在于发现溶骨性病变,而99Tcm-MDP骨显像的优势为成骨性改变。     

~（18）F-FDG PET/CT显像在肾上腺肿瘤诊断中的应用

目的：评价18F-脱氧葡萄糖（18F-fluorodeoxyglucose,18F-FDG）PET/CT显像在肾上腺肿瘤诊断中的应用价值。方法：回顾性分析42例肾上腺肿瘤患者的全身18F-FDG PET/CT及CT平扫加增强的影像学资料,比较两者对肾上腺肿瘤的诊断价值。结果：42例中,原发性肾上腺肿瘤30例,均经手术病理证实。其余12例为转移性肾上腺肿瘤,肾癌转移4例,肺癌转移7例,肝癌转移1例。18F-FDG PET/CT检查阳性42例,敏感度100%,良性病变的SUV值为1.1-2.6,平均1.8,恶性病变的SUV值为2.5-12.3,平均6.0。良恶性病变的SUV值差异有统计学意义（P〈0.01）。CT平扫加增强检查阳性38例,敏感度90.5%。PET/CT对肾上腺肿瘤的敏感度明显高于CT,两者差异有统计学意义（P〈0.05）。结论：18F-FDG PET/CT在肾上腺肿瘤诊断中具有重要价值,敏感度高于CT。     

Whole Body 18F-FDG PET/CT Imaging in the Detection of Primary Tumours in Patients with a Metastatic Carcinoma of Unknown Origin

Purpose: The aim of this study was to evaluate the role of whole body 18F-FDG PET/CT imaging in thedetection of primary tumors in patients with a metastatic cancer from an unknown primary site. Methods: Thestudy population consisted of 43 patients with a biopsy proven metastatic disease, negative conventional diagnosticprocedures (including CT/MRI/endoscopic procedures) and a whole body 18F-FDG PET/CT examination.Patients’ records were retrospectively analyzed. According to the final pathologic diagnoses, rate of detection ofthe primary tumor site was determined. Additionally, overall patient survival was calculated to evaluate theprognostic value of 18F-FDG PET/CT findings. Results: A primary tumor site was shown by 18F-FDG PET/CTin 24 patients (24/43; 55.8%). In 18 patients 18F-FDG PET/CT scans were negative (18/43; 41.8%). In a patientwith an adenocarcinoma metastasis 18F-FDG PET/CT was falsely positive for an inflammatory lesion in thelung. Among the 18F-FDG PET/CT positive and negative groups median overall survival was not significantlydifferent (log-rank p=0.573). Conclusion: Whole body 18F-FDG PET/CT imaging has a high rate of detectionof a primary tumor in patients with a carcinoma of unknown origin.     

肺癌的PET／CT检查方法与价值

目的评价18F-FDGPET／CT对肺癌诊断及临床分期的意义。方法对来本院就诊的周围型肺部肿块患者78例,其中经病理证实的肺癌62例。18F-FDGPET／CT显像后,目测和标准摄取值（SUV）相结合判断病灶良恶性,并与病理结果对照分析。结果18F-FDGPET／CT显像对肺癌诊断的敏感性和特异性分别为88．7％和75．0％;PET／CT显像发现62例肺癌患者恶性病灶共227处;PET和CT均有肯定诊断的恶性病灶178个。结论18F-FDGPET／CT对肺癌诊断及分期有较高临床价值。结合年龄、病史及其它影像学检查进行综合判断十分重要。     

17例恶性肿瘤18氟脱氧葡萄糖PET显像假阴性的分析

目的 探讨恶性肿瘤^18氟脱氧葡萄糖（^18F—FDG）PET假阴性患者的FDG摄取特点、影响因素,分析PET／CT检查中CT对其的辅助诊断价值。方法 收集行PET／CT检查者中,^18F-FDGPET为阴性的17例恶性肿瘤患者,对其PET图像进行视觉观察和半定量分析,并与CT及病理检查结果进行对比分析。结果 6例肝癌患者病理证实为高分化型肝细胞肝癌,其中1例有两处病灶,一处病灶FDG摄取、平扫CT密度较周围正常肝组织低下,另一处病灶FDG摄取、平扫CT均为阴性;后行增强CT显示在动脉期两处病灶均明显强化。1例胃印戒细胞癌伴右侧附件转移患者,1例腹壁、大网膜转移性腺癌患者,3例肾透明细胞癌患者和1例前列腺癌患者（高分化型）的^18F—FDGPET诊断受消化道正常生理性FDG摄取或泌尿系统FDG滞留的影响。3例转移癌病变直径≤1cm,其中2例的原发病灶FDG摄取明显增高,1例原发病灶^18F—FDGPET及CT诊断为阴性。68．8％原发肿瘤、66．7％转移肿瘤在平扫CT上显示异常密度,并精确定位;而31．2％原发肿瘤、33．3％转移肿瘤病变^18 F—FDGPET及CT诊断均为阴性。结论恶性肿瘤^18F—FDGPET假阴性与病理学类型、分化程度及病灶大小有关;结合CT或重视PET显像方法可减少恶性肿瘤^18F—FDGPET假阴性。     

18F-FDG PET/CT显像在肾上腺肿瘤诊断中的应用

目的:评价18F-脱氧葡萄糖(18F-fluorodeoxyglucose,18F-FDG)PET/CT显像在肾上腺肿瘤诊断中的应用价值。方法:回顾性分析42例肾上腺肿瘤患者的全身18F-FDG PET/CT及CT平扫加增强的影像学资料,比较两者对肾上腺肿瘤的诊断价值。结果:42例中,原发性肾上腺肿瘤30例,均经手术病理证实。其余12例为转移性肾上腺肿瘤,肾癌转移4例,肺癌转移7例,肝癌转移1例。18F-FDG PET/CT检查阳性42例,敏感度100%,良性病变的SUV值为1.1-2.6,平均1.8,恶性病变的SUV值为2.5-12.3,平均6.0。良恶性病变的SUV值差异有统计学意义(P<0.01)。CT平扫加增强检查阳性38例,敏感度90.5%。PET/CT对肾上腺肿瘤的敏感度明显高于CT,两者差异有统计学意义(P<0.05)。结论:18F-FDG PET/CT在肾上腺肿瘤诊断中具有重要价值,敏感度高于CT。     

18F-FDG PET/CT显像在鼻咽癌分期与疗效监测中的临床应用价值

背景与目的:18F-脱氧葡萄糖(fluorine-18 fluorodeoxyglucose,18F-FDG)PET/CT显像可明显提高肺癌、食管癌等多种肿瘤的诊断、分期与疗效监测的准确性,有助于更准确地制定治疗方案.本研究探讨全身18F-FDG PET/CT显像在鼻咽癌首次分期、再分期及疗效监测中的临床应用价值.方法:回顾性分析澳大利亚Peter MacCallum肿瘤中心2002年2月至2005年12月43例鼻咽癌患者的18F-FDG PET/CT全身扫描报告,根据临床资料、病理结果及临床随访结果,计算18F-FDG PET/CT与传统影像学检查CT、MRI的准确性、特异性、灵敏度、阳性预测值与阴性预测值,并对结果进行比较和分析.结果:18F-FDGPET/CT诊断鼻咽癌总的准确率、敏感性、特异性、阳性预测值与阴性预测值分别为95.3%、100.0%、85.7%、93.8%、100.0%,传统影像学检查CT、MRI分别为65.5%、79.4%、64.7%、81.8%、57.9%. 18F-FDG PET/CT诊断结果使2例首次分期、7例再分期患者治疗方案得到改变,并影响1例首次分期和3例再分期患者治疗方案的制定;在疗效监测组中,指导医生修改治疗方案共11例(其中5例为原则性的修改).18F-FDG PET/CT检测到2例第二原发肿瘤,1例是甲状腺癌,1例是低度恶性胃癌.结论:18F-FDG PET/CT全身显像对鼻咽癌N、M分期与疗效监测的临床作用可能优于CT、MR检查.     

18F-FDG与11C-MET PET-CT显像对磁共振成像中环形强化脑肿瘤和非肿瘤性病变的鉴别诊断

目的 探讨18F-FDG与11C-MET PET-CT显像对常规磁共振成像(MRI)不易鉴别的环形强化脑肿瘤与非肿瘤性病变的鉴别诊断价值.方法 对41例病史及临床体征不典型、MRI上呈相似明显环形强化的脑内病变患者,分别行18F-FDG及11C-MET PET-CT头部扫描,其中15例不除外脑转移瘤者加行18F-FDG PET-CT体部扫描,并对扫描结果进行视觉分析和半定量分析.经病理或临床证实为肿瘤性病变30例,非肿瘤性病变11例.结果 视觉分析结果显示,18F-FDG PET-CT正确诊断肿瘤性病变16例,假阴件14例,假阳性3例,诊断的敏感度、特异度和准确度分别为53.3%、72.7%和58.5%.9例脑转移瘤均通过体部扫描准确发现了肿瘤原发灶.11C-MET PET-CT正确诊断肿瘤性病变29例,假阴性和假阳件各1例,诊断的敏感度、特异度和准确度分别为96.7%、90.9%和95.1%.半定量分析结果显示,高度恶性脑肿瘤的L/WMFDC和L/WMMET均明显高于低度恶性脑肿瘤和非肿瘤性病变(均P<0.01),低度恶性脑肿瘤与非肿瘤性病变间仅L/WMMET的差异有统计学意义(P<0.01),转移瘤和胶质母细胞瘤间L/WMFDG和L/WMMET盯的差异均无统计学意义(均P>0.05).结论 18F-FDG和11C-MET PET-CT在鉴别MRI环形强化脑肿瘤中均有一定的价值,11C-MET PET-CT更有助于低度恶性肿瘤与非肿瘤性病变的鉴别,而18F-FDG PET-CT体部扫描有助于脑转移瘤的诊断;两种显像剂联合使用能提高对环形强化脑肿瘤诊断的准确度.     

The value of lymph node ultrasound and whole body 18F-FDG PET/CT in stage IIB/C melanoma patients prior to SLNB

BackgroundStage IIB/IIC (8th AJCC) melanoma patients are known to have high-risk primary tumors, however they follow the same routine to sentinel lymph node biopsy (SLNB) as more low risk tumors. Guidelines are not conclusive regarding the use of preoperative imaging for these patients. The aim of this pilot study was to assess the value of ultrasound (US) and ¹⁸F-FDG PET/CT prior to lymphoscintigraphy (LSG) and SLNB for stage IIB/C melanoma patients.MethodsFrom 2019-04 till 2020–01, all stage IIB/C melanoma patients underwent US of the regional lymph nodes and whole body ¹⁸F-FDG PET/CT before their planned LSG and SLNB. Suspected metastases were confirmed with fine needle aspiration (FNA), prior to surgery.ResultsIn total 23 patients were screened: six had metastases detected by imaging, two by US, one by ¹⁸F-FDG PET/CT and three were detected by both imaging modalities. All metastases were nodal and therefore treatment was altered to lymph node dissection and all but one also received adjuvant therapy. Eight (47%) of the 17 patients without macroscopic disease, still had a positive SN. Sensitivity, specificity and false negative rate for US and ¹⁸F-FDG PET/CT were 36%, 89%, 64% and 29%, 100% and 71%, respectively.ConclusionPreoperative negative imaging does not exclude the presence of SN metastases, therefore SLNB cannot be foregone. However, US detected metastases in 22% of patients, altering their treatment, which suggests it is effective in the work-up of stage IIB/C melanoma. Staging with ¹⁸F-FDG PET/CT is not of added value prior to LSG and SLNB and should therefore not be used.     

Clinical value of F-FDG PET/CT in assessing suspicious relapse after rectal cancer resection

AIM: To evaluate the value of ¹⁸F-fluorodeoxyglucose positron emission tomography/computed tomography (¹⁸F-FDG PET/CT) in the restaging of resected rectal cancer.METHODS: From January 2007 to Sep 2008, 21 patients who had undergone curative surgery resection for rectal carcinoma with suspicious relapse in conventional imaging or clinical findings were retrospectively enrolled in our study. The patients underwent 28 PET/CT scans (two patients had two scans, one patient had three and one had four scans). Locoregional recurrences and/or distant metastases were confirmed by histological analysis or clinical and imaging follow-up.RESULTS: Final diagnosis was confirmed by histopathological diagnosis in 12 patients (57.1%) and by clinical and imaging follow-up in nine patients (42.9%). Eight patients had extrapelvic metastases with no evidence of pelvic recurrence. Seven patients had both pelvic recurrence and extrapelvic metastases, and two patients had pelvic recurrence only. ¹⁸F-FDG PET/CT was negative in two patients and positive in 19 patients. ¹⁸F-FDG PET/CT was true positive in 17 patients and false positive in two. The accuracy of ¹⁸F-FDG PET/CT was 90.5%, negative predictive value was 100%, and positive predictive value was 89.5%. Five patients with perirectal recurrence underwent ¹⁸F-FDG PET/CT image guided tissue core biopsy. ¹⁸F-FDG PET/CT also guided surgical resection of pulmonary metastases in three patients and monitored the response to salvage chemotherapy and/or radiotherapy in four patients.CONCLUSION: ¹⁸F-FDG PET/CT is useful for evaluating suspicious locoregional recurrence and distant metastases in the restaging of rectal cancer after curative resection.     

18F-FDG PET/CT协助诊断胃癌成骨性骨转移3例并文献复习

目的:探讨胃癌成骨性骨转移的临床及预后、18F-FDG PET/CT检查价值。方法:回顾分析3例胃癌成骨性骨转移患者的临床特征及18F-FDG PET/CT影像表现,并检索国内外数据库,对同类病例的临床资料进行汇总分析。结果:胃癌成骨性骨转移常伴有ALP、CA19-9、CEA水平升高及低钙血症,预后差,椎体为最常见转移部位（100%）,在PET/CT上可表现为FDG高代谢结节或弥漫性骨质硬化伴稍高FDG代谢。结论:胃癌成骨性骨转移少见,首发症状不明显易造成误诊或漏诊,18F-FDG PET/CT有助于明确原发病灶及提高成骨性骨转移的诊断检出率。