title: Sertoliform cystadenoma: a rare benign tumour of the rete testis.
abstract: Sertoliform cystadenoma of the rete testis represents an uncommon benign tumour. They appear in patients from 26 to 62 years of age. We describe a case of a 66-year-old man with a tumour in the area of the epididymal head. The tumour markers were not increased. Under the assumption of a malignant testicular tumour an inguinal orchiectomy was performed. The cut surface of this tumour was of grey/white color and showed small cysts. The tumour consisted of two compartments. The epithelial like tumour cells showed a sertoliform growth pattern and cystic dilatations. In between the tumour cells repeatedly actin expressing sclerotic areas could be recognized as the second tumour component. Proliferative activity was not increased. Immunohistochemically the tumour cells were positiv for inhibin, S-100, and CD 99. Alpha feto protein (AFP), human chorionic gonadotropin (ß-HCG) and placental alkaline phosphatase (PLAP) as well as synaptophysin, epithelial membrane antigene (EMA), and BCL-2 were not expressed. As far as we know this is the sixth reported case of this tumour. Because of the benign nature of this tumour the correct diagnosis is important for the intra- and postoperative management. Here we present a case of this rare tumour and discuss potential differential diagnosis.
  The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1956026143857335.
authors: Department of Pathology, University of Göttingen, Göttingen, Germany. felix.bremmer@med.uni-goettingen.de
authors: Felix
authors: F
authors: Bremmer
authors: Stefan
authors: S
authors: Schweyer
authors: Carl Ludwig
authors: CL
authors: Behnes
authors: Manfred
authors: M
authors: Blech
authors: Heinz Joachim
authors: HJ
authors: Radzun
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D003537:Cystadenoma / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009919:Orchiectomy; D011237:Predictive Value of Tests; D012152:Rete Testis / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012707:Sertoli Cell Tumor / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013736:Testicular Neoplasms / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014463:Ultrasonography
chemical_list: D014408:Biomarkers, Tumor