[Urologic impact of Crohn disease]. / Sobre las repercusiones urológicas de la enfermedad de Crohn (EC).

Presentation of two cases of Crohn's disease seen in our Service in which the urological symptoms were of special relevance. One patient presented clinically with a picture of anaemic gross haematuria. The other one, was a patient already diagnosed with Crohn's disease who developed an enterovesical fistula in spite of receiving medical treatment. Both cases were resolved surgically. The clinical aspects, natural history and treatment of this uncommon form of urinary tract involvement are discussed.

[Pheochromocytoma: a review of our own cases]. / Feocromocitoma: revisión de nuestra casuística.

Presentation of 6 cases of pheochromocytoma, diagnosed and treated in our Unit over the last 5 years. Five were adrenal pheochromocytomas and 1 an abdominal paraganglioma in a 42 year-old woman. Distribution by gender was 4 male and 2 female, and mean age at presentation was 45.2 years ranging from 35 to 55 years. Clinically, all patients were hypertensive. Two of the 5 cases with adrenal location presented with catecholaminic crisis with BP > 240/140 mmHg. The paraganglioma was diagnosed while studying a case of sustained HBP in a 42 year-old female referred from another unit. With regard to diagnosis, the sensitivity of urinary tests was 100%, and gammagraphy with meta-iodine-benzyl-guanidine (MIBG) was particularly useful in the extra-adrenal location case. In all our patients, computerized tomography (CT) was the choice procedure to locate the tumour. Treatment was surgical in all cases, access being transperitoneal in 3 cases, thoracoabdominal in 2 and classic lumbotomy in 1. All our patients received prior treatment with alpha-blocking agents, and intraoperative complications were 1 arrythmic crisis, 1 hypotensive picture and 1 hypertensive crisis, all of which resolved successfully. Currently, 5 patients remain disease free. Mild HBP controlled with low dose captopril still persists in one patient.

[The recording of renal cortical blood flow by laser Doppler flowmetry]. / Registro del flujo sanguíneo cortical renal mediante flujometría láser-Doppler.

Several techniques are available for measuring the microcirculation. The results, however, cannot be extrapolated due to the different, intricate microvasculature of each organ system. We measured the renal cortical blood flow using laser Doppler flowmetry. This flowmeter permits blood flow measurements of very small areas of tissue. Precise information from selected areas, such as the renal cortex, can thus be obtained. The results are expressed in perfusion units (PU).

[Association of giant condyloma acuminatum of the penis with intraurethral simple condylomata. Apropos of a case]. / Asociación de condiloma acuminado gigante de pene a condilomas simples intrauretrales. A propósito de un caso.

We report on an HIV-positive male patient with a giant condyloma acuminatum at the base of penis coexisting with simple intraurethral condylomas and no crown lesions. The association of both processes indicate the likelihood of a common viral etiology. The presentation of this florid picture in a terminal patient with AIDS indicates that urologists are likely to find an increased incidence of this condition in the forthcoming years.

[Hypernephroma at the isthmus of a horseshoe kidney]. / Hipernefroma en el itsmo de riñón en herradura.

Presentation of a case of neoplasia associated to horseshoe kidney (HK). There is a tendency to suffer neoplasia in HK, hypernephroma being the most commonly seen, followed by renal pelvis tumours and Wilms' tumour with a frequency up to 8 times higher than in normal kidneys. This observation suggests that it should be compulsory to carry out cytogenetic studies in order to detect the 11p13 deletion as a possible marker in all children with HK.

[Renal oncocytoma. Presentation of a case]. / Oncocitoma renal. Presentación de un caso.

One case of renal oncocytoma whose diagnosis was established after radical nephrectomy is presented here. The histological heterogeneity of this tumour indicates that the safest treatment is still the radical nephrectomy, at which time diagnosis is most often established. Our case has a special interest as it presented two hepatic lesions suggestive of metastasis.

[Transitional cell carcinoma of the urethra in a male]. / Carcinoma transicional de uretra de un varón.

We present a case of primitive urethral carcinoma in a male. The diagnosis was established with physical exploration when we observed papillomatous formations in the fossa navicularis upon everting the meatus. The interest of this case lies in the rare nature of primitive urethral tumours, in its localization at anterior urethra level, and in its transitional histological strain, as transitional ones are usually located at prostatic and not anterior urethra level as in this case that we submit.

[Mandibular metastasis as the first manifestation of adenocarcinoma of the prostate]. / Metástasis mandibular como primera manifestación de un adenocarcinoma de próstata.

We present a case of mandibular metastasis as the first manifestation of a disseminated prostate carcinoma. After commenting on the exceptional nature of the case, we underline the importance of histochemical markers (Acid phosphatase. PSA) to determine the non-filiated origin of a metastasis. It is advisable for this to be carried out systematically in all cases of metastasis of indeterminate origin.

[Wunderlich syndrome: presentation of a case]. / Síndrome de Wunderlich: aportación de un caso.

We present a case of spontaneous renal bleeding due to renal neoplasia. We analyse other causes of Wunderlich's syndrome and, following Kendall, we defend the indication of radical nephrectomy especially of non-filiated etiology in the cases in which other causes have been discounted and the contralateral kidney is sound.

[Ureteroiliac fistula as a complication of ureterorenoscopy]. / Fístula ureteroiliaca como una complicación de ureterorrenoscopia.

Although complications post-URS are scant and can usually be resolved by conservative methods, these however, may be potentially severe as in the present case in whom a ureteroiliac fistula was observed during a URS procedure that had been performed to dilate a post-URS stenosis. Previously, extravasation had also occurred. The post-URS complications are briefly described and discussed.