Complex Orbital Angiomyoma With Features of a Lymphangiohemangioma

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Abstract

A 31-year-old woman developed left frontal headache and retrobulbar pain with exotropia and mild limitation of upgaze without proptosis. Imaging studies disclosed a circumscribed mass measuring 1.5 cm in the greatest diameter. At surgery, the lesion was adherent to the surrounding normal orbital tissues, making for a difficult and dangerous resection. Histopathologically and immunohistochemically, the lesion was a mixed cavernous angiomatous (CD31-positive) and lymphangiomatous (D2-40-postive) tumor with abundant interstitial smooth muscle. Such lesions can present significant surgical challenges due to incomplete pseudoencapsulation.

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