颈动脉体瘤临床病理分析并文献复习

Clinicopathologic Analysis of Carotid Body Tumor and Literature Review

目的探讨颈动脉体瘤的临床病理学特点及诊断要点。方法对1例颈动脉体瘤的临床资料、病理形态学及免疫组化特点进行分析,并结合文献对其诊断及鉴别诊断进行探讨。结果本例镜下肿瘤细胞呈巢状条索状生长,间质纤维组织增生,玻璃样变,血窦丰富,中央以主细胞为主,外周以支持细胞为主,瘤细胞胞浆丰富,核圆形、椭圆形,染色质细腻,核分裂象罕见。免疫组化:Syn(+)、Cg A(+)、CD56(+)、S-100(支持细胞+)、EMA(-)、FVIII(+)、AE1/AE3(-)、D2-40(-)、Desmin(-)、Vimentin(+)、CD34(血管+)、GFAP(-)、NSE(+)、Ki-67(index<5%)。结论颈动脉体瘤非常罕见,提高对该病临床病理特点的认识,可避免误诊。

Objective To explore the clinicopathologic characteristics and diagnostic criteria of carotid body tumor. Methods The clinical data,pathomorphology and immunohistochemical staining of one patient with carotid body tumor were analyzed,and its diagnosis and differential diagnosis combined with the literature were also studied. Results Microscopic examination showed that the tumor cells were funicular in nests,interstitial fibrous tissue with hyperplasia,hyaline and rich blood sinus. Central cells were mainly primary cells,and peripheral cells were mainly support cells. The tumor cells were rich cytoplasms,nuclear circle,elliptic and exquisite chromatin with rare karyokinesis. Immunohistochemical staining showed that the tumor cells were Syn（ ＋）,Cg A（ ＋）,CD56（ ＋）,S-100（ support cells ＋）,EMA（-）,FVIII（ ＋）,AE1 /AE3（-）,D2-40（-）,Desmin（-）,Vimentin（ ＋）,CD34（ artery ＋）,GFAP（-）,NSE（ ＋） and Ki-67（ index 5%）. Conclusion Carotid body tumor is rare,therefore it is essential to avoid misdiagnosis by enhancing awareness of the clinicopathologic characteristics of the disease.