Chengying SUN1, Xiaolan LIU, Guoyun ZHANG, Weili WANG. 1. Department of Radiation, the Fouth Affliliated Hospital of China Medical University, Shenyang 110032, China. suncying@sina.com
CT imaging of case one, 54-year-old woman with SCLC presented with a left ovarian metastases. A: lung imaging on CT when diag- nosed; B: lung imaging on CT after two circles of chemotherapy; C: pelvic cavity imaging on PET.
Case one: the organoid of SCLC metastatic to the ovary (HE, ×100) and positive expression of SCLC metastatic to the ovary are showing for various immunohistochemical marker (SP, ×400). A: lung cancer tumor cell; B: CgA; C: NSE; D: Syn.
患者1的影像学特点。A:确诊时肺CT;B:化疗2周期后肺CT;C:PET-CT示腹腔代谢增高。CT imaging of case one, 54-year-old woman with SCLC presented with a left ovarian metastases. A: lung imaging on CT when diag- nosed; B: lung imaging on CT after two circles of chemotherapy; C: pelvic cavity imaging on PET.患者1卵巢转移小细胞肺癌肿瘤细胞(HE, ×100)及不同免疫组化指标中细胞器结构的阳性表现(SP, ×400)。A:肺癌肿瘤细胞;B:CgA;C:NSE;D:Syn。Case one: the organoid of SCLC metastatic to the ovary (HE, ×100) and positive expression of SCLC metastatic to the ovary are showing for various immunohistochemical marker (SP, ×400). A: lung cancer tumor cell; B: CgA; C: NSE; D: Syn.患者2,女性,34岁,2009年10月末因胸闷、气短行胸部CT示右肺中叶占位,纤维支气管镜检查示右肺中叶管口菜花样肿物,表面坏死,活检病理确诊(右肺)小细胞肺癌(中间型),行EP方案(顺铂25 mg/m2,d1-d3;足叶乙甙100 mg/m2,d1-d3)化疗2个周期,复查肺CT示肿物缩小不明显,改为IEP方案(异环磷酰胺1 200 mg/m2 d1-d3;足叶乙甙75 mg/m2,d1-d3;顺铂20 mg/m2,d1-d4)化疗2周期,化疗后病灶缩小仍不明显,给予TP方案(艾素120 mg,d1;顺铂20 mg,d1-d4)化疗1个周期后(图 3A),于2010年3月-4月行右肺原发灶、纵隔淋巴引流区及双锁骨上区放疗,右肺原发灶、纵隔淋巴引流区剂量为42 Gy/21 f,双锁骨上区剂量为46 Gy/23 f,放疗中因发现多发骨转移及盆腔肿物而中止(图 3C)。CA125为35.6 U/mL。2010年5月行盆腔肿瘤细胞减灭术,术后病理报告为:双侧卵巢小圆细胞恶性肿瘤,符合SCLC双侧卵巢转移癌(图 4),放疗后2个月复查肺CT示肺内病灶明显缩小(图 3B)。
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患者2的影像学特点。A:化疗5周期后(即放疗前)肺CT;B:放疗后2月肺CT;C:盆腔CT。
CT imaging of case two, 34-year-old woman with SCCL presented with bilateral ovarian metastases; A: lung imaging on CT after five circles of chemotherapy; B: lung imaging on CT after two months of radiotherapy; C: pelvic cavity imaging on CT.
Case two: the organoid of SCLC metastatic to the ovary (HE, ×100) and positive expression of SCLC metastatic to the ovary are showing for various immunohistochemical marker(SP, ×400). A: lung cancer tumor cell; B: CgA; C: NSE; D: CD99; E: TTF-1.
患者2的影像学特点。A:化疗5周期后(即放疗前)肺CT;B:放疗后2月肺CT;C:盆腔CT。CT imaging of case two, 34-year-old woman with SCCL presented with bilateral ovarian metastases; A: lung imaging on CT after five circles of chemotherapy; B: lung imaging on CT after two months of radiotherapy; C: pelvic cavity imaging on CT.患者2卵巢转移小细胞肺癌肿瘤细胞(HE, × 100)及不同免疫组化指标中。肿瘤细胞的阳性表现(SP, ×400)。A:肺癌肿瘤细胞;B:CgA;C:NSE;D:CD99;E:TTF-1。Case two: the organoid of SCLC metastatic to the ovary (HE, ×100) and positive expression of SCLC metastatic to the ovary are showing for various immunohistochemical marker(SP, ×400). A: lung cancer tumor cell; B: CgA; C: NSE; D: CD99; E: TTF-1.
① 大体标本:单侧或双侧均见,直径较大,多在10 cm左右,为多发囊实性包块,包膜多完整。切面灰白或灰黄,质脆易碎;②显微镜:瘤细胞较小,类圆形或不规则形,染色质细腻,胞浆少或无,无核仁,核分裂相易见。细胞坏死多见,广泛淋巴血管侵袭,但侵及卵巢表面间皮细胞少见;③免疫组化:NSE、嗜铬素A(chromogranin A, CgA)、突触素(synaptophysin, SYN)是SCLC的较特异指标,Rund等[研究显示:核周的、点状细胞角蛋白20(cytokeratin 20, CK20)染色有助于区分卵巢原发小细胞癌及SCLC转移所致;④基因检测:Garcia等[检测1例SCLC卵巢转移患者肺原发灶与卵巢转移灶p53基因突变情况,发现两者具有相同的突变位点(S215)。