Immunohistochemical localization of MUC1 glycoprotein in the retina.
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Biomarkers, Tumor↗
Biomedical subjects
F Uehara
Publications and source records attributed to F Uehara.
Glycopathological study of eyelid tumors and pseudotumors.
The expression of MUC1, Tn (GalNAc alpha 1-O-Ser/Thr) and sialosyl Tn (STn) (NeuAc alpha 2,6 GalNAc alpha 1-O-Ser/Thr) antigens, which are useful markers for the prognosis of cancer in other organs, was examined immunohistochemically in a series of 45 eyelid tumors and 5 pseudotumors: basal cell carcinoma, 18; squamous cell carcinoma, 11; sebaceous gland carcinoma, 6; seborrheic keratosis, 4; papilloma, 3; verruca vulgaris, 2; nevus, 1; and granuloma, 5. The MUC1 antigen was identified in all squamous cell and sebaceous gland carcinomas, but not in basal cell carcinoma or the benign tumors. The Tn antigen was expressed in all the sebaceous gland, half of the squamous cell, and only rarely in the basal cell carcinomas. The STn antigen was expressed in all seborrheic keratosis and in the majority of squamous cell carcinomas, but only rarely in sebaceous gland and basal cell carcinomas. Eyelid tumors are frequently associated with apomucin and mucin-carbohydrate antigens: the MUC1 glycoprotein appears to be related to the malignant potential of eyelid tumors, and may be a useful marker for the differential diagnosis of invasive tumors, including sebaceous gland and squamous cell carcinomas.
Adult↗
A case of non-Hodgkin's lymphoma following long-term corticosteroid therapy for Addison's disease.
A 76-year-old Japanese woman had suffered from fatigue, weight loss, and cutaneous hyperpigmentation at the age of 38 years and was diagnosed as having tuberculous Addison's disease. Since then, corticosteroids had been administered effectively as hormonal replacement. At the age of 75 years, the patient presented with a progressive, painless swelling in the left eyelid due to an ill-defined tumor of rubbery consistency in the superotemporal aspect of the orbit. Computed tomography, magnetic resonance imaging, and scintigraphy revealed a wide distribution of tumors, but not in the adrenal gland, which led to the suspicion of systemic malignant lymphoma. Histopathologic examination of the excised orbital tumor was compatible with non-Hodgkin's lymphoma of the B-cell type. We believe this is the first report of Addison's disease presenting with non-Hodgkin's lymphoma. This disease process was characterized by the development of a lymphoid malignancy after long-term corticosteroid therapy to control the adrenal insufficiency, and by the widespread involvement of the lymph nodes and orbit but not the adrenal gland. Corticosteroid-induced abnormal immune state was considered to be the pathogenesis of this unusual complication.
Addison Disease↗