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Arch Ophthalmol. 1998;116:1680.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Within recent years much has been written by the pathologists about a type of tumor variously designated by the names "myoblastic myoma," "myoblastoma," "rhabdomyoma," and "granular cell myoblastoma." . . . The characteristic microscopic features may be summarized as follows: (1) large polyhedral cells, 20 to 60 microns in diameter, constitute a nodular accumulation of neoplastic cells; (2) the cytoplasm stains only faintly with eosin and contains many coarse neutrophilic granules; (3) cross or longitudinal striations are rarely seen. . . . Granular cell myoblastoma is a relatively common tumor and widely distributed throughout the body. Since its occurrence in the orbit is rare, 2 cases are reported. The tumors in these cases presented no characteristic clinical picture, and the differential diagnosis was purely a histologic one. The tumor is more commonly benign, but in 1 of the present 2 cases it was malignant.

Reference: Dunnington JH. Granular cell myoblastoma . . . [Full Text of this Article]