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[Metastasis of prostatic origin in periorbital soft tissues].

Appearance of orbital metastatic (OM) neoplasia is the most frequent cause of eye tumour; however, its incidence related to prostatic carcinoma (PC) is rare, primarily when there is sole infiltration of the periorbital soft tissue (STOM). The paper describes the case of a patient diagnosed with PC presenting proptosis and diplodia as first spread symptoms. The rarity of STOM of the prostatic carcinoma prompted the diagnosis to be seen sceptically until immunohistochemical confirmation was obtained. An analysis is made of various features of interest regarding the grading of OM, clinical incidence and diagnostic methods. The singularity of the present case, affecting only the periocular soft tissues is illustrated. Finally, the situations requiring orbital biopsy in order to avoid a second neoplasia are analyzed.