Smooth Muscle Tumor Originating in the Pleura: A Case Report and Updated Literature Review

Table 2

Immunohistochemical staining.

Immunohistochemical staining	Result
CD34 (focal)	Positive
Smooth muscle actin	Positive
SMMHC	Positive
Desmin	Positive
Vimentin	Positive
CD99	Negative
Beta-catenin	Negative
S-100	Negative
BCL-2	Negative
Ki-67	Less than 2% cells showing nuclear staining
Cytokeratin AE1/AE3	Negative