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F Arnaiz Esteban

Publications and source records attributed to F Arnaiz Esteban.

At least 19 recordsLinked to original sources
PubMed2000

[Tridimensional echography: a new urologic challenge].

OBJECTIVE: To describe the urological applications of three-dimensional ultrasonography, a new method that basically transforms the two-dimensional into three-dimensional images through complex data processing for enhanced imaging. METHODS: Since the technology for three-dimensional studies was incorporated into our US equipment a few months ago, we have performed three-dimensional US after the conventional two-dimensional study in 30 renal units, 15 bladders and 15 prostates, using the same well-established procedures for ultrasound assessment. The images obtained by both methods were compared to determine the diagnostic enhancements, if any, afforded by this new technology. RESULTS: Three-dimensional US offers more possibilities for renal cortical volume measurement and determination of the extent of the tumor. It also appears to be promising in regard to its capacity to determine the degree of tumor infiltration in the bladder and permits even more precise measurements of residual volume or bladder content. Transrectal ultrasound of the prostate may benefit more since three-dimensional US permits analysis of focal changes from different perspectives and planes without difficulty. CONCLUSIONS: Three-dimensional US was developed recently. It has been utilized in gynecology and cardiology, but there is limited experience in urology. We have started a clinical study to determine its possibilities and main applications in our field. Its impact on other diagnostic parameters or biopsy selection criteria are other interesting areas of research.

Humans↗
PubMed1998

[Natural history of cancer of the kidney: iconographic follow-up].

OBJECTIVE: To describe the natural history of renal cancer based on the images obtained in a case with more than 11 years' follow-up, from the initial stages of the disease to its outcome. METHODS/RESULTS: The history of a female patient in whom a renal mass had been detected at age 25 years is described. The patient died 11 years later due to metastasis. The images obtained throughout follow-up clearly illustrate the natural course of the disease, which could not be changed because the patient had refused surgery. CONCLUSIONS: The observation of a small renal mass in young patients is an indication for early surgery. The natural course of this disease is predictably fatal, its benign behaviour being highly questionable. Because pregnancy does not appear to accelerate the course of the disease, patient assessment can be completed and treatment can be instituted after delivery.

Adult↗
PubMed1997

[Fracture of the penis: two new cases. Review of the literature. Usefulness of echography].

OBJECTIVE: To analyze the diagnostic and therapeutic difficulties in rupture of the albuginea penis and review the literature. METHODS/RESULTS: Two additional cases of penile rupture are described. Penile ultrasound evaluation disclosed a hematoma in the corpus cavernosum in one case and hematoma and a probable rupture of the albuginea penis in the other case. Treatment was by immediate surgery which achieved good cosmetic and functional results. CONCLUSIONS: Penile fracture is an uncommon condition which occurs when the penis is in erection. Ultrasound is useful in its diagnosis, but MRI is more precise. Treatment is by immediate surgery to avoid sequelae, which are common in cases treated conservatively.

Adult↗
PubMed1995

[Abscessed brucellar prostatitis. An infrequent location].

Explanation of one case of abscessified brucellar prostatitis in a 44-year old patient. The emphasis is placed on the high incidence of brucellosis in the province of Soria and the rarity of the prostatic location of this condition. Also, a revision is made of the diagnostic methodology and current therapeutical approaches. The crucial role of the endocavitary ultrasound techniques both for diagnosis as well as treatment and case follow-up is highlighted.

Abscess↗
PubMed1994

[Ultrasonography diagnosis of ureteral ectopy in prostatic urethra].

A 54-year-old male who consulted for an episode of right-sided nephric colic is described. A urological ultrasound scan disclosed grade I hydronephrosis in the upper half of the right kidney and an anechoic tubular image ending in the prostate gland. A subsequent urographic evaluation confirmed the diagnosis of ectopic ureter in prostatic urethra.

Choristoma↗
PubMed1994

[Renoduodenal fistula secondary to pyonephrosis].

Presentation of one case of renoduodenal fistula due to pyonephrosis in an oligophrenic female patient. In view of the patient's characteristics, the clinical picture was highly developed at presentation which resulted in failure of the conservative treatment. We emphasize the diagnostic and therapeutical methodology followed. Also, we include a literature review on this disease.

Adult↗
PubMed1993

[Simple calculation of prostatic weight with transrectal echography].

The appraisal of the prostate weight with transrectal ultrasound scanning is simplified with the use of a simple mathematical formula of an ovoid volume. Such a method does not prolong the examination time but provides an acceptable reliability, and therefore it can be used as a substitute to planimetry, more subject to the observer's error and more time consuming for the physician, even when part of the examination can be made by replaying the video.

Humans↗
PubMed1993

[Ureteral ectopy: report of a case of ureteral communication with vulva].

We report an uncommon case of ureteral ectopia opening to the contralateral vulva in a 20-year-old patient with a long history of night and day urinary incontinence. Since the ectopic ureter drained the superior pelvis of the right kidney, pyelo-pyelic anatomosis was performed and the defunctionalized ureter was abandoned. A completely satisfactory result was achieved. We briefly discuss this rare pathology and describe the simple, yet effective treatment.

Adult↗
PubMed1993

[Spontaneous bladder rupture: report of a case].

Contribution of one case of spontaneous vesical fracture in a patient with no urinary pathological background. Presentation of this picture is highly uncommon. In this case, a major alcoholic intake stands out as the unleashing factor which provoked vesical overdistension with an intraperitoneal posterior fracture. A review is made of the various etio-pathogenic mechanisms which can originate this pathology, as well as the diagnostic and therapeutic methodology.

Humans↗
PubMed1993

[Blue nevus of the prostate].

The presence of melanin in the prostatic gland's stroma is a histopathological finding of extreme rarity. It receives the name of blue nevus as a result of its similitude to the skin's blue nevus. The paper describes the finding of melanin stores in the fibromuscular stroma of a patient's prostate and reviews the theories on its source.

Aged↗
PubMed1992

[Is the early diagnosis of prostatic cancer possible using transrectal echography?].

One of the major challenges of using prostate transrectal ultrasound scanning as a procedure to diagnose through images is the theoretical possibility of reaching an early diagnosis of prostate cancer. This paper compiles the author's experience in this field. Based on 142 established diagnosis of prostate cancer since 1984, the conclusion being reached is that prostate cancer has no pathognomonic signs, and therefore it is impossible to make an early diagnosis just by using the images obtained with transrectal ultrasound scanning. This procedure could be used, however, to select patients with scan abnormalities (Alarm signs) who should have a biopsy performed. The support of ultrasound-led transperineal biopsy of the prostate is currently indispensable to achieve an early diagnosis. This paper suggests that a biopsy should be done at the appearance of just one alarm sign, although this may involve a large number of cancer negative biopsies. The almost null incidence of complications from transperineal biopsies enhances this reasoning.

Humans↗
PubMed1992

[Incidence and characteristics of multiple neoplasms in urologic patients].

The incidence and features of malignant primary multiple (MPM) neoplasias found in clinical urological patients have been analyzed so as to determine the actual magnitude of the problem and to obtain a better knowledge of this disease. For this reason, case histories of patients with MPMN, where at least one of the involved neoplasia was urological, were retrospectively studied. The study included a 9-year follow-up period and followed the Warren and Gates inclusion criteria. The number of MPMN patients was 23, representing an incidence of 6.1% among patients with urological neoplasias. Mean age at the time of discovery of the second tumour was 77.1 years. In the 15 patients with metachronic tumours, the time interval between the first and second tumours ranged between 1 to 25 years (average 5.4 years). The most frequently observed tumour association was bladder transitional carcinoma and prostate adenocarcinoma. The cause of death was always the second neoplasia.

Adolescent↗
PubMed1991

[Fever and leukemoid reaction in bladder cancer: report of a case].

The authors present a unique case of bladder cancer that presented as paraneoplastic syndrome of fever and leukemoid reaction. Furthermore, the patient had a left renal tumor histologically similar to the bladder tumor. We discuss whether the foregoing was a metastatic or a primary tumor coexisting with a bladder tumor. The neoplastic syndromes affecting patients with bladder neoplasms are briefly discussed.

Carcinoma, Squamous Cell↗
PubMed1990

[Transrectal echography and cancer of the prostate. III. Monitoring of the treatment response].

The role of transrectal ultrasonography in monitoring response of prostate cancer to treatment with ciproterone acetate is described. In our therapeutic protocol for prostate cancer, those included between categories 7 and 9 are submitted to antidrogen therapy, regardless of the type of surgical procedure indicated in each case. Fifty-one patients submitted to this treatment modality were followed using transrectal ultrasound 3 months following diagnosis and every 6 months thereafter. The mean follow-up was 2 years Using the intrinsic and morphologic ultrasound parameters we have developed at our department, we can conclude that the changes in prostate size or volume and the changes in the intensity of brightness are the most reliable parameters in assessing the response to treatment. A good response to treatment is manifested by the reduced size of prostate and reduced intensity of brightness ("dark prostate").

Antineoplastic Agents↗
PubMed1990

[Transrectal echography and cancer of the prostate. I. Echographic characteristics].

Our diagnostic criteria in prostatic cancer using transrectal ultrasonography are described herein. A prospective study was undertaken since 1984 in a total of 1,512 patients. 75 of whom had cancer of the prostate. For the present study, we analyzed a series of ultrasonographic parameters that we have termed "intrinsic parameters" (IP) and "morphologic parameters" (MP). IP refer to the echo characteristic of the area within the prostate (intensity of brightness and size of granules) whereas MP refer to the general aspects of the prostate gland (ratio of transverse to anteroposterior diameter, shape deformity and rupture of capsule). The MP have proved to have a more diagnostics capacity; thus, when present, a diagnosis of prostatic cancer is made. IP changes alert us to suspect this condition. A T/AP ratio less than l, a "bell-shaped" prostate, is almost pathognomonic of prostate cancer since the foregoing has not been observed in benign conditions.

Aged↗
PubMed1990

[Transrectal echography and cancer of the prostate. II. Comparison with digital examination of the rectum].

A comparative study was performed to determine the usefulness and diagnostic capacity in cancer of the prostate afforded by two different techniques: digital examination and transrectal ultrasonography. Our experience in 69 cases of prostate cancer show that more information is provided by transrectal ultrasound. Thus, the diagnostic capacity and usefulness of transrectal ultrasonography in the management of prostate cancer is greater than that of digital examination. However, on the sole basis of the number of cancers diagnosed, both techniques have very similar values for specificity, while transrectal ultrasonography is slightly superior with respect to sensitivity. The foregoing findings simply show that although both techniques have a similar diagnostic capacity, transrectal ultrasonography provides further important information (size, bladder involvement, graphic representation, etc.) that make it overall more useful and superior to the other technique in the management of prostate cancer.

Aged↗