Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液样变、囊腔形成、血管壁透明变性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织培养样”表现，伴有大量有丝分裂和红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病有广泛的粘液样、囊腔形成、血管壁透明性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织培养样”表现，伴有大量有丝分裂和红渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广液样变、囊腔形成、血管壁透明变性缺乏核相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案“组织培养样”表现，伴有大量有丝红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检，具有广泛的粘液样、囊腔形成、血管壁透明性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检，标本显示无图案的“组织培养样”表现，伴有大量有丝分裂和红细胞。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液样变、囊腔形成、血管壁透明变性和缺乏核裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织培养样”表现，伴有大量有裂和红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液样变、囊腔、管壁透明变性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织培养样”，有大量有丝分裂和红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液样变、囊腔形成、血管壁透明变性和缺裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高微镜检查，标本图案的“组织培养样”表现，伴有大量有丝裂和红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液样变、囊腔形成、血管壁透明变性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织培养样”表现，伴有大量有丝分裂和红细胞外渗。

Histologically, the tumors were characterized by widespread myxoid, cyst formation, vessel wall hyalinization, and absence of mitoses.

组织学检查，病变具有广泛的粘液变、囊腔形成、血明变性和缺乏核分裂相等特点。

Figure 2.B, On high-power magnification microscopy, the specimen showed a patternless tissue culture-like appearance with multiple mitoses and extraasated red blood cells.

图2B，高显微镜检查，标本显示无图案的“组织”表现，伴有大量有丝分裂和红细胞外渗。