Hydatid mesoarteritis in the abdominal aorta: case report.

A rare case of hydatid disease, presenting as a 12 cm. cyst in the arterial wall of the abdominal aorta, with progressive chronic ischemia of the lower limbs and repeated episodes of shock is reported. The diagnostic problems, surgical procedure and follow-up are presented. This is the first reported case in the literature.

[Lesions of the ureter in obstetric-gynecologic surgery]. / Lesiones del uréter en cirugía obstetro-ginecológica.

The chapter of injuries to the ureter during obstetric-gynaecological surgery continues to be ignored in the literature published over the last decades, in spite of its prevalence in the practice. This has motivated our review and update of this issue. The interest of urological diagnostic procedures prior to surgery and conduit examination at any time during the operation exert some influence on the prevention of this pathology. Preoperative finding and reconstruction lead to better results, which benefit from the use of the urinary route, thus leaving the gut route and self-transplantation for exceptional situations. A new iatrogenic pathology has emerged from the most frequent use of gynaecological endoscopic surgery.

[Statistical study of a series of cryptorchism cases]. / Estudio estadístico de una serie de criptorquidias.

A study was made on a series of 348 patients with uni- and bilateral cryptorchid, a right location being predominant in the former cases, and in the canaliculus the most common testicular one. The associated pathology is usually irrelevant. In view of the results revealed by optical and ultrastructural histological study, the introduction of definitive corrective medical treatment appears to be essential within 2 years. Despite existing discrepancies with regard to dosage and efficacy of hormonal therapy with HCG or LH-RH analogues we believe they should be used at doses no higher than 12000 IU of HCG in order to achieve a decrease or ease the surgical treatment. Higher doses would damage the testicle or produce early puberty with growth failure. Scrotum-bound funiculolysis is the procedure accomplishing a larger amount of therapeutic success and in our experience the results are conditioned to the testicle's anatomic location. In the event of abdominal testicles or with high canaliculus location, a section of the spermatic canals could be performed followed later by auto-transplantations using microsurgery procedures.

[Advance in the immunologic study of urologic neoplasms]. / Avance en el estudio inmunológico de las neoplasias urológicas.

The reduction of the levels of circulating T lymphocytes in urological neoplasias seems obvious. The existence of a link between the different, neoplastic, bladder and prostate processes, as well as the degree of malignancy, prognosis and therapeutic response has still to be established, according to the immunitary state of the patients. The constant developing and refining of the immunological technology will no doubt serve to resolve these problems.

Solitary Aspergillus mycetoma of the kidney.

A case of Aspergillus mycetoma of the kidney in a patient with lymphoblastoma receiving intensive cytostatic and steroid drugs is reported. Only four cases of Aspergillus infection of the kidney have so far been reported. Aspergillus infection of the kidney without disseminated fungal disease is a very rare clinical entity. In an extensive review of the world literature we have found only four cases previously reported [1-3], three in insulin-dependent diabetic patients and one in a patient with a ureteropelvic junction obstruction. Herein we describe the first case of a right kidney mycetoma in a patient with lymphoblastoma and treated intensively with cytostatic drugs and steroids.

[Cystine calculi: x-ray diffraction study. Infrared spectroscopy and SEM]. / Cálculos de cistina: estudio por difracción a rayos X. Espectroscopía por infrarrojos y MEB.

The present study investigated cystinuria and cystine calculi. Inexplicably, of 987 calculi that had been analyzed ultrastructurally at the Department of Urology of the University Hospital of Salamanca over a period of 15 years only 3 (0.3%) were cystine. The foregoing finding does not coincide with the 0.5-1% incidence reported in the world literature. Apart from the chemical analyses, infrared spectroscopy disclosed the typical findings of multiple bands 1600-625 cm-1. Analysis by x-ray diffraction revealed a slight variation from the ASTM values. One of the calculi, which we considered to be a mixed calculus (probably of calcium phosphate), showed a peak at 43 degrees, instead of the usual 34.5. Scanning electron microscopy disclosed two forms of crystallization: The typical hexagonal form of cystine stones and the rectangular form of different sizes. The material comprising the matrix was observed in many areas, covering and joining the crystals as if it were cement. Whenever possible, treatment of these recurrent calculi should be conservative. Some advocate the use of ESWL, although others consider these calculi to be extremely hard and, therefore, not amenable to ESWL. Chemical dissolution is advocated by some, although its critics consider it to be of little use. Concerning prophylaxis, forced fluids and alkalinization may reduce recurrence. Ultrastructural studies have provided further insight into the structure and composition of cystine calculi. The foregoing may be useful in determining the most appropriate form of treatment based upon stone size, shape, composition (pure or mixed), etc.

[Thrombosis of the renal pedicle in a closed abdominal injury]. / Thrombose du pédicule rénal dans un traumatisme abdominal fermé.

A case of traumatic thrombosis of renal vascular pedicule in a 15 years old patient is presented. The different diagnostic and therapeutic problems which were seen are discussed. Special emphasis is made on the necessity of an early diagnosis for the revascularization techniques to be effective, or the nephrectomy is otherwise indicated.

Relations between circulating levels of testosterone, 17 beta-estradiol, androstenedione, dehydroepiandrosterone sulfate, and androgenic receptor content of cytosol in benign prostatic hyperplasia.

Cytoplasmic androgen receptor content was determined in 26 patients with benign prostatic hyperplasia using methyltrienolone (R 1881) as the radioactive ligand. Their concentrations were compared with patient age, adenoma weight, and total circulating concentrations of testosterone, 17 beta-estradiol (17 beta-E2), androstenedione (A) and dehydroepiandrosterone sulfate (DHEA-S). Statistically significant inverse correlations were noted between adenoma weight and receptor content (p less than 0.05) and significant direct correlations between DHEA-S and receptor concentration (p less than 0.05), although the levels of this androgen were similar to those observed in a 'normal' population of the same age. The possible implications of these findings relative to the pathogenesis of the disease are discussed.