中华病理学杂志
中華病理學雜誌
중화병이학잡지
Chinese Journal of Pathology
2015年
10期
709-713
,共5页
贡其星%张炜明%李红霞%潘贝晶%张智弘
貢其星%張煒明%李紅霞%潘貝晶%張智弘
공기성%장위명%리홍하%반패정%장지홍
胃肠道间质肿瘤%琥珀酸脱氢酶%DNA突变分析%免疫组织化学
胃腸道間質腫瘤%琥珀痠脫氫酶%DNA突變分析%免疫組織化學
위장도간질종류%호박산탈경매%DNA돌변분석%면역조직화학
Gastrointestinal stromal tumors%Succinate dehydrogenase%DNA mutational analysis%Immunohistochemistry
目的:探讨琥珀酸脱氢酶缺陷型胃肠道间质瘤( GIST)的临床病理学特征、诊断、鉴别诊断及独立分型意义。方法对120例胃GIST行免疫组织化学方法检测SDHB和SDHA蛋白表达,同时所有病例均进行CD117、DOG-1、CD34、平滑肌肌动蛋白( SMA)、结蛋白、S-100蛋白、细胞角蛋白(CK)、Ki-67的免疫组织化学染色(EnVision法)。部分病例还进行CKIT基因第9、11、13、17号外显子及血小板源生长因子受体( PDGFRA )基因第12和18号外显子的基因检测。结果发现8例(6.6%)琥珀酸脱氢酶缺陷型GIST病例,患者年龄16~65岁(平均36.2岁),男∶女=3∶5,累及胃窦6例、小弯1例、胃底1例。大体检查肿瘤呈多结节状或分叶状,大小3~10 cm;显微镜下瘤细胞以上皮样细胞为主,部分可混杂梭形细胞结节,其中5例可见脉管内瘤栓。免疫组织化学8例中SDHB皆阴性,SDHA有5例阴性。其他标志物CD117、DOG-1、CD34均阳性表达, SMA、结蛋白、S-100蛋白、CK皆阴性。8例基因突变检测CKIT和PDGFRA均为野生型。7例患者获得随访结果,随访时间为2~60个月(平均23.3个月),皆生存。其中3例在诊断时即出现肝脏多发性转移,1例在随访17个月中出现网膜及肠系膜多发性病灶,患者带瘤生存。结论琥珀酸脱氢酶缺陷型GIST是一种特殊亚型的GIST,多累及儿童和青年人,女性多见,以多结节状生长方式,上皮样瘤细胞为主,常见脉管内瘤栓、常发生淋巴结及肝脏转移,生物学行为惰性特征。免疫组织化学SDHB检测有助于将之从普通型GIST中检出。
目的:探討琥珀痠脫氫酶缺陷型胃腸道間質瘤( GIST)的臨床病理學特徵、診斷、鑒彆診斷及獨立分型意義。方法對120例胃GIST行免疫組織化學方法檢測SDHB和SDHA蛋白錶達,同時所有病例均進行CD117、DOG-1、CD34、平滑肌肌動蛋白( SMA)、結蛋白、S-100蛋白、細胞角蛋白(CK)、Ki-67的免疫組織化學染色(EnVision法)。部分病例還進行CKIT基因第9、11、13、17號外顯子及血小闆源生長因子受體( PDGFRA )基因第12和18號外顯子的基因檢測。結果髮現8例(6.6%)琥珀痠脫氫酶缺陷型GIST病例,患者年齡16~65歲(平均36.2歲),男∶女=3∶5,纍及胃竇6例、小彎1例、胃底1例。大體檢查腫瘤呈多結節狀或分葉狀,大小3~10 cm;顯微鏡下瘤細胞以上皮樣細胞為主,部分可混雜梭形細胞結節,其中5例可見脈管內瘤栓。免疫組織化學8例中SDHB皆陰性,SDHA有5例陰性。其他標誌物CD117、DOG-1、CD34均暘性錶達, SMA、結蛋白、S-100蛋白、CK皆陰性。8例基因突變檢測CKIT和PDGFRA均為野生型。7例患者穫得隨訪結果,隨訪時間為2~60箇月(平均23.3箇月),皆生存。其中3例在診斷時即齣現肝髒多髮性轉移,1例在隨訪17箇月中齣現網膜及腸繫膜多髮性病竈,患者帶瘤生存。結論琥珀痠脫氫酶缺陷型GIST是一種特殊亞型的GIST,多纍及兒童和青年人,女性多見,以多結節狀生長方式,上皮樣瘤細胞為主,常見脈管內瘤栓、常髮生淋巴結及肝髒轉移,生物學行為惰性特徵。免疫組織化學SDHB檢測有助于將之從普通型GIST中檢齣。
목적:탐토호박산탈경매결함형위장도간질류( GIST)적림상병이학특정、진단、감별진단급독립분형의의。방법대120례위GIST행면역조직화학방법검측SDHB화SDHA단백표체,동시소유병례균진행CD117、DOG-1、CD34、평활기기동단백( SMA)、결단백、S-100단백、세포각단백(CK)、Ki-67적면역조직화학염색(EnVision법)。부분병례환진행CKIT기인제9、11、13、17호외현자급혈소판원생장인자수체( PDGFRA )기인제12화18호외현자적기인검측。결과발현8례(6.6%)호박산탈경매결함형GIST병례,환자년령16~65세(평균36.2세),남∶녀=3∶5,루급위두6례、소만1례、위저1례。대체검사종류정다결절상혹분협상,대소3~10 cm;현미경하류세포이상피양세포위주,부분가혼잡사형세포결절,기중5례가견맥관내류전。면역조직화학8례중SDHB개음성,SDHA유5례음성。기타표지물CD117、DOG-1、CD34균양성표체, SMA、결단백、S-100단백、CK개음성。8례기인돌변검측CKIT화PDGFRA균위야생형。7례환자획득수방결과,수방시간위2~60개월(평균23.3개월),개생존。기중3례재진단시즉출현간장다발성전이,1례재수방17개월중출현망막급장계막다발성병조,환자대류생존。결론호박산탈경매결함형GIST시일충특수아형적GIST,다루급인동화청년인,녀성다견,이다결절상생장방식,상피양류세포위주,상견맥관내류전、상발생림파결급간장전이,생물학행위타성특정。면역조직화학SDHB검측유조우장지종보통형GIST중검출。
Objective To study the clinicopathologic features , diagnosis and differential diagnosis of succinate dehydrogenase ( SDH ) deficient gastrointestinal stromal tumors ( GISTs ) as a unique tumor subtype.Methods SDHB and SDHA immunohistochemistry was performed in 120 gastric GISTs, in addition to CD117, DOG-1, CD34, smooth muscle actin (SMA), desmin,S-100 protein, cytokeratin (CK) and Ki-67.Subset of the cases was further evaluated for the presence of mutations in CKIT exons 9, 11, 13 and 17 mutations and platelet derived growth factor receptor alpha ( PDGFRA) exons 12 and 18.Results Eight of 120 (6.6%) GIST cases were found SDH-deficient including 3 male and 5 female patients (median age of 36.2 years;ranging 16 to 65 years of age).The tumors involved antrum (6 cases), lesser curvature (1 case) and fundus (1 case).Macroscopically, the dominant tumor masses varied from 3 to 10 cm in diameter with a multinodular or plexiform pattern involving the gastric wall .Microscopically ,tumor cells had predominantly epithelioid morphology , with occasional mixed spindle cell nodules .Lymphovascular invasion was identified in 5 cases.Immunohistochemistry for SDHB was negative in all 8 cases, and SDHA was negative in 5 cases.All 8 SDHB negative cases also expressed CD 117, DOG-1 and CD34, but were negative for SMA, desmin, S-100 and CK.All 8 cases were found to have wild-type CKIT and PDGFRA genes. Available clinical follow-up were obtained in 7 cases, ranging from 2 to 60 months ( median follow-up 23.3 months) , and all patient were alive .Three cases were found to have liver metastases at their first diagnosis , and one developed omental and mesenteric metastases in 17 months.Conclusions SDH-deficient GIST is a distinct subtype of GIST , with a predilection to occur in young and female patients .Characteristic pathological findings include multinodular gastric wall involvement , epithelioid cell morphology , frequently lymphovascular invasion with occasional lymph node and liver metastases , but an overall indolent clinical behavior.Immunohistochemistry for SDHB is required for the diagnosis .