Oxyphil cell adenoma of the lacrimal caruncle
نویسنده
چکیده
Microscopic appearances Sections showed a small circumscribed but unencapsulated oxyphil cell adenoma on the lateral edge of the caruncle. It appeared to originate from and replace the surface epithelium (Fig. I). The tumour was composed of distinctive eosinophilic granular cells arranged in solid cords, tubules, and acini (Fig. 2). A small group of lacrimal acini was present in the subjacent dermis but had no visible connexion with the tumour.
منابع مشابه
Oxyphil cell adenoma of the lacrimal caruncle. Report of two cases.
Microscopic appearances Sections showed a small circumscribed but unencapsulated oxyphil cell adenoma on the lateral edge of the caruncle. It appeared to originate from and replace the surface epithelium (Fig. I). The tumour was composed of distinctive eosinophilic granular cells arranged in solid cords, tubules, and acini (Fig. 2). A small group of lacrimal acini was present in the subjacent d...
متن کاملOncocytomas (oxyphil adenomas) of the lacrimal caruncle.
Three cases of oncocytoma (oxyphil adenoma) of the lacrimal caruncle are reported. Transmission electron microscopy performed on one of the lesions confirms the tumour to be composed of cells containing abnormally large numbers of mitochondria. It is suggested that these tumours arise from accessory lacrimal glands or their secretory ducts.
متن کاملCentripetal retinal capillary proliferation in idiopathic parafoveolar telangiectasis.
1 Biggs SL, Font RL. Oncocytic lesions of the caruncle and other ocular adnexa. Arch Opthalmol 1977;95:474–8. 2 Hartman LJC, Mourits MP, Canninga-van Dijk MR. An unusual tumour of the lacrimal gland. Br J Opthalmol 2003;87:363. 3 Cameron JR, Barras CW. Oncocytoma of the eyelid. Acta Opthalmol Scand 2005;83:125. 4 deBree R, Scheeren RA, Kummer A, et al. Nasolacrimal duct obstruction caused by an...
متن کاملOxyphil cell adenoma in a Nigerian: case report and review of the literature.
Oncocytomas of the lacrimal gland are rare tumors. We report the first documented case in Nigeria. This was an interventional case report. A complete ophthalmologic and systemic examination with available pertinent investigations was done, followed by a modified exentheration and histopathologic examination. A 60-year-old Nigerian housewife was evaluated for a slow-growing, right upper lid mass...
متن کاملPapillary cystadenoma of the lacrimal caruncle.
The adenoma, which was sharply circumscribed but not encapsulated, consisted in part of radiallyorientated, slender, anastomosing papillary processes clothed by double-layered eosinophilic epithelium (Fig. 2). The basal cells of this epithelium were polygonal and relatively small with round nuclei, while the surface cells were tall and cylindrical in shape with conspicuous cell boundaries, gran...
متن کامل