SOLITARY FIBROUS TUMOR OF THE THYROID - CLINICOPATHOLOGICAL, IMMUNOHISTOCHEMICAL AND ULTRASTRUCTURAL-STUDY OF 3 CASES

被引:78
作者
TACCAGNI, GL
SAMBADE, C
NESLAND, J
TERRENI, MR
SOBRINHOSIMOES, M
机构
[1] UNIV MILAN, SAN RAFFAELE HOSP, DEPT PATHOL, I-20122 MILAN, ITALY
[2] UNIV PORTO, HOSP S JOAO, FAC MED, DEPT PATHOL, OPORTO, PORTUGAL
[3] NORWEGIAN RADIUM HOSP, DEPT PATHOL, OSLO 3, NORWAY
[4] INST CANC RES, OSLO, NORWAY
关键词
SOLITARY FIBROUS TUMOR; MESENCHYMAL TUMOR; THYROID; IMMUNOHISTOCHEMISTRY; ELECTRON MICROSCOPY;
D O I
10.1007/BF01606459
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
We describe three cases of solitary fibrous tumour (SFT) arising from thyroid stroma. Grossly, the tumours were clearly delimited but only partly encapsulated. The following histomorphological growth patterns were observed: bundles of cells in storiform configuration; non-structured bundles; prevalence of fibrous matrix; highly cellular, non-structured; prevalence of loose, non-structured extracellular substance; cellular proliferation and vascular spaces in a haemangiopericytic configuration and a lipomatous component. Immunohistochemical investigation demonstrated intense, diffuse vimentin positivity and focal, less intense actin positivity in all three cases. At electron microscopy we observed a primitive cell of mesenchymal type, with cytoplasm poor in organelles and rich in filaments; this cell sometimes presented differentiation characteristics. SFT is at present the most correct term for the lesions presented here despite some morphological characteristics which differ from cases reported in the literature.
引用
收藏
页码:491 / 497
页数:7
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