Gastrointestinal Mesenchymal Neoplasms other than Gastrointestinal Stromal Tumors: Focusing on Their Molecular Aspects

Figure 9

Photomicrograph of H&E-stained section from a leiomyomatous polyp. The leiomyoma is composed of bland smooth muscle cells with eosinophilic cytoplasm. The tumor is directly apposed to the colonic mucosa, suggesting derivation from the muscularis mucosae.