1/82. recurrence of sigmoid colon carcinoma in the residual urethra after cystectomy.INTRODUCTION: We report a case of recurrence of sigmoid colon cancer in the residual urethra after cysto-prostato-sigmoidectomy. methods/RESULTS: The patient successfully underwent urethrectomy and is currently tumor-free. To our knowledge, this is the first case of recurrence of a non-urothelial malignant tumor in the residual urethra.- - - - - - - - - - ranking = 1keywords = cancer (Clic here for more details about this article) |
2/82. A case of urethral recurrence found 15 years after radical cystectomy.PURPOSE: A case of a urethral recurrence found 15 years after radical cystectomy is reported. methods/RESULTS: A 78-year-old man, who had undergone radical cystectomy at age 63, presented with urethral bleeding and positive cytology in urethral washing. The urethra was surgically resected. Pathologic examination revealed transitional cell carcinoma located in the distal and mid portion of the penile urethra. CONCLUSION: Evidence suggested that urethral recurrence resulted from the implantation from the primary bladder tumor; in addition, the urethral neoplasm had scarcely grown in the penile urethra for 15 years.- - - - - - - - - - ranking = 1.3812498245178keywords = neoplasm (Clic here for more details about this article) |
3/82. Lymphatic mapping and intraoperative lymphoscintigraphy for identifying the sentinel node in penile tumors.Lymph node mapping has become an integral part of the management of melanoma and breast cancer with regard to both staging and treatment. We report our technique for lymphatic mapping and intraoperative lymphoscintigraphy applied to a patient with penile melanoma. This technique may improve the sensitivity of identifying the sentinel lymph node in patients with malignant penile lesions.- - - - - - - - - - ranking = 1keywords = cancer (Clic here for more details about this article) |
4/82. Periurethral vaginal adenocarcinoma of the intestinal type: report of two cases and review of the literature.INTRODUCTION: Vaginal adenocarcinomas in the absence of diethylstilbestrol (DES) exposure are rare neoplasms. Only a few cases with enteric type histology have been reported. Also rare are urethral adenocarcinomas in women. case reports: Two cases of vaginal adenocarcinoma of the intestinal type in the absence of DES exposure are presented. Both cases arose in the periurethral area, raising the issue of urethral as well as vaginal origin. DISCUSSION: The possible histogenesis of these neoplasms is considered.- - - - - - - - - - ranking = 2.7624996490355keywords = neoplasm (Clic here for more details about this article) |
5/82. Urinary cytologic findings in patients with benign and malignant adenomatous polyps of the prostatic urethra.CONTEXT: Urethral adenomatous polyps with prostatic epithelium (also known as benign prostatic epithelial polyps [BPEPs]) are a documented cause of hematuria, dysuria, and hematospermia, conditions that may prompt cytologic evaluation of urine. DESIGN: The urine cytologic test findings in 5 cases of biopsy-proven BPEPs and in 1 case of prostatic ductal adenocarcinoma (PDA) that presented as a urethral polyp were retrospectively evaluated. Immunocytochemical stain for prostate-specific antigen (PSA), prostatic acid phosphatase (PAP), and high-molecular-weight cytokeratin (34betaE12) were used in evaluation of the lesions. RESULTS: In 4 of 5 cases of BPEPs, clusters of bland columnar cells with uniform, oval nuclei were seen. Positive immunostaining for PSA and PAP confirmed the prostatic origin of the clusters in 2 cases. One urine sample contained abundant goblet cells and extracellular mucin, consistent with intestinal metaplasia coexisting in the bladder biopsy specimen. The urine sample in the fifth case of BPEPs contained no columnar cells. The last case had multiple urine cytologic evaluations that demonstrated PSA-positive, malignant-appearing clusters of columnar cells. A biopsy specimen of the polyps was described as a high-grade prostatic intraepithelial neoplasm in adenomatous polyp. However, in this patient, PDA was diagnosed on transurethral resection of the prostate specimen 4 years after the initial urine cytologic test. CONCLUSION: Benign prostatic epithelial polyps should be considered in the differential diagnosis of clusters of columnar cells in urine cytologic testing. Cells with malignant nuclear features should instigate a careful search for a (prostatic) neoplasm, which may present as urethral polyps (e.g., PDA). Stains for PSA or PAP are useful adjuncts in differential diagnosis of this condition.- - - - - - - - - - ranking = 2.7624996490355keywords = neoplasm (Clic here for more details about this article) |
6/82. Clear cell adenocarcinoma in a female urethral diverticulum.The incidence of a neoplasm within the female urethral diverticulum is rare. Clear cell adenocarcinoma, which is the most common neoplasm, arises from the metaplasia of surface transitional epithelium and the paraurethral ducts. These tumors are usually diagnosed at a late stage, which worsens their prognosis. The treatment of choice is surgery.- - - - - - - - - - ranking = 2.7624996490355keywords = neoplasm (Clic here for more details about this article) |
7/82. MRI appearance of a leiomyoma of the female urethra.Leiomyomas are rare in the urinary tract, with the kidney capsule being the most common location [1]. leiomyoma of the female urethra is very rare. In 1992, Cheng et al. reviewed a total of 29 cases. They concluded that urethral leiomyoma is a rare condition that is difficult to distinguish clinically from other urethral lesions and that a histological diagnosis is essential [2]. Although we agree that the histological diagnosis is essential, magnetic resonance imaging (MRI) provides useful pre-operative information in cases of leiomyoma of the female urethra, as our present case indicates. To our knowledge we report the second case of a primarily diagnostic approach with MRI for leiomyoma of the female urethra. Ikeda, R. (2001). Clinical Radiology56, 76-79.- - - - - - - - - - ranking = 0.019853353847758keywords = kidney (Clic here for more details about this article) |
8/82. leiomyoma of the urethra in a Mexican woman: a rare neoplasm associated with the expression of estrogen receptors by immunohistochemistry.BACKGROUND: leiomyoma of the female urethra is a rare condition, although it can occur anywhere along the genitourinary tract. methods: We report on a 22-year-old woman found to have a urethral mass detected in our hospital delivery room. Examination showed a 6 X 5-cm mass at the urethral meatus. RESULTS: Pathologic examination revealed urethral leiomyoma. immunohistochemistry confirmed leiomyoma with positive staining for vimentin, desmin, and actin. Immunoreactivity for estrogen receptors was also detected. CONCLUSIONS: Because this lesion was discovered while the patient was pregnant and it showed immunoreactivity for estrogen receptors, it is suggested that increased estrogen levels could accelerate smooth muscle growth.- - - - - - - - - - ranking = 5.524999298071keywords = neoplasm (Clic here for more details about this article) |
9/82. adenocarcinoma of female paraurethral duct showing neuroendocrine differentiation.Two cases are presented in which a female urethral adenocarcinoma took the form of a diverticular cancer. The pathologic examination of each tumor revealed a columnar/mucinous type of adenocarcinoma with evidence of abundant mucous secretion. Some of the cancer cells were positive on immunohistochemical staining with the conventional neuroendocrine marker chromogranin a, indicating focal neuroendocrine differentiation. The present cases may indicate a possible site of origin for female paraurethral adenocarcinomas.- - - - - - - - - - ranking = 2keywords = cancer (Clic here for more details about this article) |
10/82. Urethral meatal carcinoma following cystourethrectomy for bladder carcinoma.The multicentric potential of urothelial malignancy is well recognized, and the occurrence of urethral neoplasm after cystectomy is attributed to this characteristic of urothelial tumors. Eight instances of tumors in the glandular urethral remnant after subtotal urethrectomy illustrate the necessity of excising the fossa navicularis and urethral meatus when performing urethrectomy.- - - - - - - - - - ranking = 1.3812498245178keywords = neoplasm (Clic here for more details about this article) |
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