[Infected urachal cyst: report of a new case]. / Quiste infectado de uraco: a propósito de un nuevo caso.

OBJECTIVE: To report a case of infected urachal cyst, with special reference to the difficulty in making the diagnosis due to the low incidence of this condition. METHODS/RESULTS: The embryologic origin of the urachus, its anomalies, clinical features, diagnosis and treatment are discussed. CONCLUSION: A high index of suspicion is necessary to diagnose this condition with unspecific clinical features. Ultrasound and CT are useful in making the diagnosis. Radical surgery continues to be the first therapeutic procedure.

[Acute scrotum and Schönlein-Henoch purpura: report of 2 new cases]. / Escroto agudo y púrpura de Schönlein-Henoch: presentación de dos nuevos casos.

OBJECTIVE: To report two additional cases of Schönlein-Henoch purpura that developed acute scrotum. METHODS: Two patients with Schönlein-Henoch purpura that developed acute scrotum in the course of the disease are presented. The literature is briefly reviewed and discussed. RESULTS/CONCLUSIONS: Schönlein-Henoch purpura is a systemic vasculitis with involvement of the genital area in 15% of the cases and must be distinguished from testicular torsion. The clinical features, the findings at physical examination and scrotal ultrasound evaluation should suffice to make the correct diagnosis and avoid surgery. However, if the findings are inconclusive, techniques using isotopes and/or echo-Doppler can be utilized. If these are not available, exploratory scrototomy should not be delayed. Excellent response is achieved with steroid therapy.

[Squamous carcinoma of the prostate]. / Carcinoma escamoso de próstata.

A primary squamous cell carcinoma occurring in the prostate of 84 year-old man is described. The patient died of local progression six months after diagnosis. Review of the literature suggests that such a cancer of the prostate is rare, highly aggressive, and responds poorly to any mode of therapy.

Carcinoma escamoso de próstata / Squamous cell carcinoma of the prostate

Presentamos un caso de carcinoma escamoso primario de próstata en un varón de 84 años. El paciente falleció a los seis meses del diagnóstico por progresión local de la neoplasia. La revisión de la literatura sugiere que tal tipo de tumor es raro, muy agresivo, y responde pobremente a cualquier tipo de tratamiento. (AU)

[An intrascrotal epidermoid cyst: apropos a case]. / Quiste epidermoide intraescrotal: a propósito de un caso.

We report a case of simple epidermoid cyst of the scrotum. Complete excision was performed transcrotally and the presence of epidermoid cyst confirmed by histopathological examination. Epidermoid cyst of the scrotum is a rare disease and only 10 cases have been reported. Simple excision was sufficient for treatment of this very rare lesion. The patient is now in the follow-up period.

[Renal hydatid cyst. Report of a new case]. / Quiste hidatídico renal. A propósito de un nuevo caso.

OBJECTIVES: To report an additional case of renal hydatid cyst in a patient who had been clinically asymptomatic despite the significant renal derangement observed at diagnosis. METHODS/RESULTS: Patient clinical history is presented and the diagnostic methods are described. CONCLUSIONS: US, urography and CT permit an accurate diagnosis in most of the cases. MRI has diagnostic limitations in this condition. To date, surgery continues to be the treatment of choice.

[Occult primary testicular tumor or burnt testicular tumor. Apropos of a case]. / Tumor testicular primario oculto o tumor testicular fundido. A propósito de un caso.

OBJECTIVES: A case of impalpable primary testicular tumor or burned out testicular tumor is described, with special reference to its unusual form of presentation and histopathological characteristics. The rarity of this tumor type and the difficulties encountered in making the differential diagnosis prompted us to report on this case. METHODS/RESULTS: A case of impalpable primary testicular tumor is described in a patient with normal tests on physical examination, who had consulted for progressive respiratory failure from pulmonary metastasis. CONCLUSIONS: Impalpable primary testicular tumor should be suspected in patients with extragonadal germ cell tumor and normal testes on physical examination. We underscore the importance of the tumor markers and ultrasound in making the diagnosis.

[Treatment of acute urine retention caused by benign prostatic hypertrophy with an LH-RH agonist (Goserelin)]. / Tratamiento de la retención aguda de orina debida a hipertrofia benigna de próstata con un agonista LH-RH (Goserelina).

Nineteen patients seen for AUR secondary to benign prostate hypertrophy and with high surgical risk, were treated with an LH-RH agonist (GOSERELIN). After six months of treatment a 43.28% decrease in the prostate volume was seen, Improvement, i.e., spontaneous miction, was achieved in 46.6% patients, although post-mictional volumes remained high.

[Effect of digital rectal examination on PSA]. / Efecto del tacto rectal sobre el PSA.

A prospective randomized study on 100 patients was conducted to determine the effect of the rectal digital examination on prostate specific antigen (PSA) serum concentration. The control group consisted of 50 patient, all with two PSA determinations with no urological manipulation between them. The study group had 50 patient, who underwent digital examination 24 hours before the second PSA determination. Mean difference in PSA concentration in the study group is 0.84 ng/ml, compared to 0.0048 ng/ml in the control group (p << 0.05). Only 7 patients with initial PSA within the normal range (0.0-0.4 ng/ml) had a second PSA higher than 4.0 ng/ml. Only a patient with initial PSA lower than 4.1 ng/ml, had a second PSA higher than 10.1 ng/ml. This minimal change is independent of the initial concentration and the diagnosis (benign prostate hyperplasia, prostate adenocarcinoma or chronic prostatitis). Though changes are statistically significant they are not clinically so because the 0.84 increase is irrelevant. Based on these data we believe rectal digital examination has no effect on PSA serum levels.

[Renal cystic adenocarcinoma]. / Adenocarcinoma quístico renal.

Contribution of one case of renal cystic adenocarcinoma which presented as a large cystic mass that did not meet the plain cyst requirements. Certainty diagnosis was achieved by the high rise in intracystic LDH. The value of the radiological tests, as well as the limited value of a negative cytology are discussed.

Non-functioning tumor of the suprarenal gland. Compatible with metastasis from a melanoma.

A case of metastatic melanoma in the right suprarenal gland is presented. It manifested as a mass and paraneoplastic syndrome. We put forward a set of considerations on the differential diagnosis of suprarenal masses, and the diagnostic use of several tests taken in conjunction (echography, computer tomography, percutaneous punctures).