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Article
March 1991

Orbital Carcinoid Tumor

Author Affiliations

Houston, Tex

Arch Ophthalmol. 1991;109(3):315-316. doi:10.1001/archopht.1991.01080030017003
Abstract

To the Editor.  —We had the opportunity to review representative slides from the exenteration specimen kindly sent to one of us (R.L.F.) by Dr Bullock from the tumor he and his colleagues1 interpreted as a "primary orbital neuroblastoma." On review of the slides, all four of us favored the diagnosis of orbital carcinoid tumor. By light microscopy, the tumor exhibited all four main patterns described previously in cases of carcinoid tumors: pattern A (solid basaloid lobules), pattern B (trabecular or cordlike), pattern C (tubular or rosettelike), and pattern D (mixed).2 The tumor also lacked the fine fibrillary background (neuropil) that is frequently observed in cases of neuroblastoma.3We decided to study the tumor using the Krystalon procedure used by one of us (H.B.). Portions of the section from the exenteration specimen containing tumor tissue were lifted off the slide, sectioned into 12 portions averaging 5×5 mm each,

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