Glomangiomatosis - immunohistochemical study: A case report

Figure 1 There are many nodules in the gray-yellow tissue, ranging in diameter from 0. 5 cm to 2.5 cm. The section was gray and grayish-yellow, and the texture slightly tough.

Figure 2 Images under the microscope. A: Diffuse proliferation of small vessels with oval cell proliferation around, mild cell morphology, abundant cytoplasm, close relationship with blood vessels, no obvious atypia, and clear mitosis (hematoxylin and eosin 10 ×); B: Oval cells beside small vessels can be seen in the surrounding tissues, which is consistent with the shape of tumor cells. Mast cells are scattered in the stroma. (Hematoxylin and eosin 20 ×); C: The tumor infiltrates the surrounding adipose connective tissue. (Hematoxylin and eosin 20 ×).

Figure 3 Immunohistochemical staining of smooth muscle actin showed that tumor cells and surrounding vascular wall were positive. (Smooth muscle actin 4 ×).