RESUMO
The reactivities of Ca1 and HMFG2 monoclonal antibodies were compared on paraffin wax embedded breast tissues using indirect immunoperoxidase. The expression of Ca antigen, like HMFG2, is not exclusive to malignancy: Ca was present in 41/53 (77%) and HMFG2 in 42/53 (79.2%) non-malignant conditions and both were present in 33/35 (94%) carcinomas. Similar results were obtained when cryostat sections were used. Both antigens showed striking similarities in their topographical distributions, although quantitative differences were seen. Their cellular and sub-cellular localisations were investigated by double labelling immunofluorescence and immunogold electron microscopy, which showed that the expression of Ca and HMFG2 antigens was closely associated on cell membranes but that the epitopes were distinct.
Assuntos
Antígenos de Neoplasias/análise , Antígenos de Superfície/análise , Doenças Mamárias/imunologia , Neoplasias da Mama/imunologia , Proteínas de Membrana/análise , Adenofibroma/imunologia , Anticorpos Monoclonais , Antígenos Glicosídicos Associados a Tumores , Mama/imunologia , Feminino , Doença da Mama Fibrocística/imunologia , Imunofluorescência , Humanos , Técnicas Imunoenzimáticas , Microscopia Eletrônica , Mucina-1RESUMO
We report a case of aorto-left renal vein fistula secondary to an aortic aneurysm presenting with flank pain, a left-sided varicocoele and microscopic haematuria. These symptoms and signs should alert the clinician to this rare complication of abdominal aortic aneurysm.