Abstract
本文报道1例伴CDKN2A/B和TP53基因变异的卵巢幼年型粒层细胞瘤(juvenile granulosa cell tumor,JGCT)。患者女,18岁。因腹痛1个月余入院。影像学提示盆腔囊实性肿物,与卵巢关系密切。行一侧卵巢及输卵管切除,术中肿瘤破裂。术后病理诊断JGCT。镜下肿瘤被纤维分隔为巢状,伴坏死;可见滤泡样、管囊状及乳头状结构;细胞异型及多形性显著,可见病理性核分裂象。免疫组织化学:α-抑制素、CD99、CD56、Melan A、SF-1、WT-1、BRG1和INI1阳性;生殖细胞和神经内分泌标志物阴性。基因检测:肿瘤中检出CDKN2A/B、MTAP和TP53基因突变,以及与DNA损伤修复、生殖细胞或性腺发育、激素调节相关的基因变异。术后12个月肿瘤复发。需要注意的是,JGCT临床病理学特征多样,除分期外,CDKN2A/B和TP53基因变异可能提示肿瘤高复发风险。.
MeSH terms
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Adolescent
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Cyclin-Dependent Kinase Inhibitor p15 / genetics
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Cyclin-Dependent Kinase Inhibitor p16* / genetics
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Cyclin-Dependent Kinase Inhibitor p16* / metabolism
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Female
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Granulosa Cell Tumor* / genetics
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Granulosa Cell Tumor* / pathology
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Humans
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Mutation
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Neoplasm Recurrence, Local
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Ovarian Neoplasms* / genetics
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Ovarian Neoplasms* / pathology
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Ovarian Neoplasms* / surgery
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Tumor Suppressor Protein p53* / genetics
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Tumor Suppressor Protein p53* / metabolism
Substances
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Tumor Suppressor Protein p53
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Cyclin-Dependent Kinase Inhibitor p16
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Cyclin-Dependent Kinase Inhibitor p15
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CDKN2A protein, human
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CDKN2B protein, human
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TP53 protein, human