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M Acha Pérez

Publications and source records attributed to M Acha Pérez.

At least 19 recordsLinked to original sources
PubMed2001

[Renal carcinoma with vena cava invasion. A new case].

It is well known that the renal carcinoma can progress to the renal vein and cava. The MRI is the most accurate study in order to assay the extension of the thrombus. The surgical management is based on the extension and location of the thrombus. New immunologic-based treatment is now being tested. We describe our experience with surgical management of the one case of renal carcinoma with cava vein thrombus. No evidence of progression is noted after 18 month follow up.

Carcinoma, Renal Cell↗
PubMed1997

[Paratesticular adenomatoid tumor].

OBJECTIVE: To report a case of paratesticular tumor involving the right testis. METHODS/RESULTS: A middle-aged male with a small paratesticular tumor involving the right testis is described. Treatment was by transscrotal surgical excision. The histological analysis of the surgical specimen disclosed a mesothelial tumor and no evidence of malignancy. CONCLUSION: Although the preoperative diagnosis of adenomatoid tumor is relatively simple when the epididymis is involved, localization in the testis is relatively difficult to determine. Surgical exploration of all intrascrotal and intratesticular tumors are advocated due to the risk of malignancy.

Humans↗
PubMed1995

[Renal cystic mass: the diagnostic dilemma].

OBJECTIVE: To determine the best diagnostic approach and management of cystic renal mass. METHODS: Four cases are described and the literature reviewed. RESULTS: Of the 4 cases of cystic renal mass, 2 had a previous history of renal trauma. Puncture and aspiration of the cystic content were performed in three cases; cytology was positive for malignancy in one, which was confirmed by the histologic analysis. Two cases underwent nephrectomy although one of the post-traumatic cases had a preoperative diagnosis of pararenal pseudocyst. The literature review showed a significant controversy exists concerning the diagnostic approach and treatment. CONCLUSIONS: We advocate an approach free from tenets, where all the appropriately chosen diagnostic tools may be valid. If doubts persist after diagnostic evaluation, nephrectomy should be performed.

Adult↗
PubMed1995

[Intraprostatic blue nevus].

OBJECTIVES: The present article describes an additional case of blue nevus of the prostate, a rare benign lesion which must be distinguished from the more aggressive lesions. METHODS/RESULTS: This lesion was incidentally discovered in a patient who had a biopsy of the prostate. The microscopic examination disclosed the presence of melanin in the epithelium of the prostate gland. CONCLUSIONS: Extracutaneous blue nevus does not progress to malignancy and must be distinguished from the more aggressive lesions.

Aged↗
PubMed1994

[Digestive hemorrhage in renal cell carcinoma].

We report a rare case of a young male patient with a single duodenal metastasis from a renal cell tumor nine years after nephrectomy that presented as upper GI tract hemorrhage. The clinical and pathological aspects of this uncommon intestinal metastasis are briefly discussed.

Carcinoma, Renal Cell↗
PubMed1994

[The psoas bladder-hitch. An illustrative case].

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.

Female↗
PubMed1994

[Testicular metastasis of renal adenocarcinoma. Report of a case].

Metastatic tumors of the testis are extremely rare, if we exclude leukemias and lymphomas. The present article reports a case of renal adenocarcinoma metastatic to the testis that presented with paraneoplastic syndrome, hematuria and a palpable testicular mass. The literature on metastatic tumors of the testis is briefly reviewed.

Adenocarcinoma↗
PubMed1994

[Retroaortic renal vein. Report of a case].

The retroaortic renal vein is a malformation characterized by the presence of a vessel that drains the left renal blood up to the inferior vena cava crossing behind the aortic artery. Unfamiliarity with this condition may lead to an incorrect diagnosis of adenopathy in patients with testicular and/or renal neoplasia and increases the number of complications of surgery of the left renal pedicle. Herein we describe a 71-year-old male with a retroaortic renal vein that had been detected during radical surgery for a left renal tumor.

Aged↗
PubMed1993

[Urethral metastases of prostatic adenocarcinoma].

Although the penis is highly vascularized, secondary penile tumors are rare and 28% of these metastasize from prostatic tumors. Urethral metastases are uncommon and may be caused by seeding following manipulation of the prostate with instruments or spread directly from the adjacent structures. This condition can be controlled and treated effectively with first or second line hormone therapy. Herein we describe a 65-year-old male with disseminated prostatic adenocarcinoma who presented multiple urethral metastases that were successfully treated with stramustine phosphate.

Adenocarcinoma↗
PubMed1993

[Fraley's syndrome: a case report].

A case of Fraley's syndrome is described. Intermittent nephralgia was the presenting symptom. The diagnosis was made on the radiologic finding of obstruction of the infundibulum arising from vascular compression. The diagnostic and therapeutic aspects of this uncommon cause of obstruction of the infundibulum are discussed.

Adolescent↗
PubMed1993

[Exceptional tumor: primary renal osteosarcoma. Review of 18 cases and report of a new one].

Primary renal osteosarcoma is an uncommon tumor type. To our knowledge, only 18 such cases have been reported to date. This tumor is very aggressive and may be localized or distant, the survival rate being less than 18 months despite a radical surgical procedure. Polichemotherapy has been attempted. We report on a 47-year-old patient with primary osteosarcoma of the right kidney, 8 cm x 8 cm in diameter, which was not amenable to surgical excision due to invasion of the adjacent structures. Systemic polichemotherapy was unsuccessful, and the patient died 3 months following diagnosis with multiple pulmonary metastases.

Female↗
PubMed1993

[Rectal involvement secondary to prostatic adenocarcinoma].

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.

Adenocarcinoma↗
PubMed1993

[Fournier's gangrene. Presentation of 11 cases and review of the literature].

Fournier's gangrene is an infectious necrotizing cellulitis of the penis and/or perineoscrotal region, which rapidly progresses and carries a high mortality. Eleven cases of Fournier's gangrene that had undergone an emergency procedure from 1985 to 1992 are described. Excellent results were achieved, with a survival rate of 91%. In our view, treatment of this disease entity is fundamentally based on early diagnosis, wide radical debridement of the affected area, frequent local treatment, debridement at the least sign of recurrence and early antibiotic therapy with three agents.

Adult↗
PubMed1993

[Impotence caused by venous leakage: surgical treatment. Short- and mid-term results].

We reviewed the results achieved by ligation of the deep dorsal vein of the penis in 14 males with erectile dysfunction secondary to venous leakage. Prostaglandin E1 injection, echo Doppler and cavernosometry were utilized for the diagnosis. Surgical correction was performed when the cavernosometric flow required for erection was more than 200 cc/minute. The patients had a follow-up evaluation at 3, 6 and 12 months postoperatively. At one year, 4 (28.5%) patients showed good results and 10 (71.4%) poor. The factors that may influence the short, medium and long-term results are briefly described.

Adult↗
PubMed1992

[Genital location of a clear-cell hidradenoma].

Clear cell hidradenoma of the penile prepuce progressing to malignancy transformation is rare and arises from the adnexal glands of the skin. It may present in nodular or ulcerated forms, which make it almost impossible to distinguish from spinocellular carcinoma. Treatment is by wide surgical excision. Local recurrence and distant metastasis rare.

Adenoma, Sweat Gland↗
PubMed1992

[Fistula between ileal conduit and small intestine after cutaneous ureteroileostomy].

We report on a case of ileal conduit-enteric fistula which appeared early after ureteroileostomy using the Bricker technique. The appearance of gastrointestinal content through the stoma was the only sign. An ileogram permitted making the diagnosis. Conservative treatment was instituted and the fistula resolved spontaneously. The different diagnostic and therapeutic aspects of this uncommon complication after ureteroileostomy are discussed.

Humans↗