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  • Title: Plexiform myxoid gastrointestinal stromal tumor: a potential diagnostic pitfall in pathological findings.
    Author: Li B, Zhang QF, Han YN, Ouyang L.
    Journal: Int J Clin Exp Pathol; 2015; 8(10):13613-8. PubMed ID: 26722584.
    Abstract:
    Gastrointestinal stromal tumors (GISTs) have a rather wide morphologic spectrum. Here, we report a rare variant plexiform GIST in gastric antrum. Microscopically, the tumor showed plexiform or multinodular growth pattern, proliferation of spindle cells, presence of epithelioid cells, and abundant myxoid stroma with thin-walled blood vessels. The histologic features were similar to plexiform fibromyxoma. The typical characteristics of immunohistochemistry (positive for CD34, DOG-1 and CD117) confirmed the final diagnosis of GIST. This is a rare case of myxoid GIST characterized by a plexiform growth pattern.
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