title: [Expression of receptors of estrogens and androgens in the testicular appendices].
abstract: BACKGROUND
  The appendices or hidátides of the testicle are structures that are considered an embryonic rest. In testicular hidátide estrogen receivers have been demonstrated but in the epididimys the results vary. Has been theorized that the elevation of the estrogen levels in the puberty can produce an inflammation and torsion of hidátide, nevertheless, in the epididimys in which the estrogen expression is not clear (and also they are twisted) the theory is put in doubt. This controversy takes us to the accomplishment of this work.
  
  
  METHODS
  A prospective study is made in 20 testicular appendices, of which 7 from the epididimys are extirpated of patients to whom an escrotal exploration is made in the development of surgery of processes of the inguino-escrotal channel (hidroceles, hernias). Optical microscopy and inmunohistoquímical study are analyzed by means of using prediluted monoclonales antibodies, for receivers of estrogens, androgens and proliferative index. The results were proceed and analyzed by means of SPSS statistical program.
  
  
  RESULTS
  All hidátides, testicular and from the epididimarys expressed receivers for estrogens without significant difference among them, not existing differences as far as the location of receiving sayings within the three compartments of hidátide. The number of estrogen receivers was in relation to the age of the patient. Only hidátides from the epididimys fundamentally expressed receivers of located androgens and at level of ductus. We have not found significant relation between the proliferative index and the expression of estrogen receivers. The proliferative index was more elevated at level of ductus.
  
  
  CONCLUSIONS
  1) As much the testicular appendices as those from the epididimays expressed receivers of estrogens at level of the three compartments. It makes think about a same embryonic origin, although only the epididimal ones expressed androgen receivers. 2) the observation of estrogen receivers in both types of hidátides, as well as the relation of the number of such with the age of the patient, makes think that the increase of estrogens in the puberty can participate in patogénia of the torsion of these appendices.
authors.affiliation: Servicio Cirugía Pediátrica, Hospital Universitario Materno-lnfantil Reina Sofía de Córdoba.
authors.forename: R M
authors.initials: RM
authors.lastname: Paredes Esteban
authors.forename: R J
authors.initials: RJ
authors.lastname: Luque Barona
authors.forename: B
authors.initials: B
authors.lastname: Velasco Sánchez
authors.forename: J
authors.initials: J
authors.lastname: Rodríguez Vargas
authors.forename: A
authors.initials: A
authors.lastname: Lorite
authors.forename: M
authors.initials: M
authors.lastname: García Ruiz