[The psoas bladder-hitch. An illustrative case]. / Vejiga psoica. Caso ilustrativo.

The psoas bladder hitch is an invaluable surgical procedure in the treatment of lesions of the lower ureteral third and transplantation with short ureters. We briefly review this procedure and describe an illustrative case of ureteroneocystostomy of the right lumbar ureter.

[Cytology positive for malignant cells in hydrocele secondary to testicular seminoma]. / Citología positiva a células malignas en hidrocele secundario a seminona testicular.

Finding tumor cells in the fluid of hydrocele secondary to testicular tumor is rare and may be due to the fact that hydrocele fluid cytology has not been studied systematically. The presence of malignant cells in the hydrocele fluid may be ascribed to two mechanisms: retrograde lymphatic flow from the infiltrated retroperitoneal lymph nodes or from tumor directly invading the tunica albuginea and vaginalis testis, with cells passing into the cavity of the vaginalis. Only two cases of hydrocele secondary to testicular seminoma with vaginalis fluid cytology positive for malignant seminomatous cells have been previously reported in the literature. To our knowledge, the case reported herein is the third. These three cases are briefly discussed.

[Multifocal renal adenocarcinoma. Considerations regarding a case]. / Multifocalidad en el adenocarcinoma renal. Consideraciones a propósito de una observación.

There is scant reference to the clinicopathological feature of multifocality in renal adenocarcinoma. Inadvertently disregarding this feature may result in local recurrence in those patients in whom partial nephrectomy is contemplated.

[Rectal involvement secondary to prostatic adenocarcinoma]. / Afectación rectal secundaria a adenocarcinoma prostático.

Rectal involvement secondary to adenocarcinoma of the prostate is uncommon and carries a poor prognosis. Distinguishing secondary from primary rectal tumors is mandatory, since each condition warrants a completely different treatment. There are at least five forms of clinicopathological involvement, depending on the rectal wall invasion and its consequences. We report on 6 cases, 4 had been diagnosed when rectal invasion was present, the enteric involvement appeared during the process in 1 patients and the other had prostate carcinoma coexisting with squamous cell carcinoma of the anus.

[Leydig cell tumor in a patient with type I multiple endocrine neoplasm: study of a case and review of the literature]. / Tumor de células de Leydig en paciente con neoplasia endocrina múltiple tipo I: estudio de un caso y revisión de la literatura.

Presentation of the case of a 42-year old male patient with Type I Multiple Endocrine Neoplasia, known as the Wermer Syndrome, who developed Leydig's cells tumour. No association was found between both processes and therefore a fortuitus, though worthwhile mentioning given the characteristics and hormonal implications of both pathologies, can be presumed.

[Leiomyosarcoma and liposarcoma: rare tumors of the kidney]. / Leiomiosarcoma y liposarcoma: tumores infrecuentes de riñón.

Sarcoma accounts for 2.8% of all renal tumours. We report a case of renal leiomyosarcoma (T2 N0 M0) and a case of renal liposarcoma (T3 N0 M0) submitted to surgery and chemo- and radiotherapy. Follow-up at nine months and 4 years, respectively, revealed the patients are tumor-free. The literature is reviewed highlighting the beneficial effect of chemo- and radiotherapy combined with surgery in the treatment of these tumors with a poor prognosis per se.