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Ano-rectal malformation and recurring orchioepididymitis in infants.

The case of a newborn boy is reported, incorrectly diagnosed as anal agenesis without urethrae fistula and treated by anoplasty. The patient later suffered several episodes of urinary infection and left epididymo-orchitis-orchioepididymitis, reflux of contrast being shown at micturating cystourethrography into the right vas deferens, the seminal vesicle, epididymis and left testicle. Rectal endoscopy revealed a rectourethral fistula, confirmed by fistulography. The patient improved after surgical removal of the fistula.

Anal Canal↗

Sonography of the acute scrotum: the four T's of testicular imaging.

The scrotum is frequently imaged on an emergent basis. The differential diagnosis of the acute scrotum can be divided into four categories-torsion, trauma, tumor, and "testiculitis" (epididymo-orchitis). Although testicular neoplasms are not imaged emergently, 15% are detected incidentally when performing an emergent scrotal ultrasound. Therefore, the emergent sonographic examination of the testicles should include a thorough search for malignancy. Images demonstrating the sonographic and color Doppler appearances of each of the "four T's" will be reviewed. The radiographic review will focus on the imaging features, which are the keys to arriving at the correct diagnosis.

Acute Disease↗

Unusual clinical presentations of brucellosis.

The purpose of this paper is to draw attention to atypical presentations of brucellosis. A prospective study identified 240 consecutive patients with brucellosis admitted to our department between December 1999 and July 2002. From these cases we present 11 patients with unusual clinical presentations. Neurobrucellosis, peritonitis, pericarditis, pancytopenia, and uveitis were diagnosed in 2 patients each and 1 presented with epididymo-orchitis.

Adult↗

Isolation and characterization of a Paracoccidioides brasiliensis strain from a dogfood probably contaminated with soil in Uberlândia, Brazil.

We report the isolation of a strain of Paracoccidioides brasiliensis from a dogfood, probably contaminated with soil, in a Brazilian city. The fungus was isolated on appropriate culture media, and when inoculated into a guinea-pig testis produced orchitis with abundant fungal elements. Histopathology of sections of the testicle showed an inflammatory reaction with P. brasiliensis inside monocytes. Immunological identification confirmed the identity of the isolate.

Animal Feed↗

The black mink (Mustela vison). A natural model of immunologic male infertility.

Breeding for fine black fur has generated a colony of mink wherein 20-30% of the males are infertile. Two clinical groups are distinguishable: one being infertile from the start (primary infertility), and the other infertile after one or more years of fertility (secondary fertility). Although the etiology of primary infertility is unknown, the available data indicate that secondary infertility is associated with an autoimmune disease of the testis. Thus, male mink with secondary infertility have (a) higher prevalence and levels of anti-sperm antibody when compared with animals with primary infertility, and the antibody prevalence varies with fur color; (b) severe monocytic orchitis (47%) and/or aspermatogenesis (75%) with negative cultures for bacterial, fungal, mumps, or Coxsackie B viral organisms; (c) massive and extensive granular deposits of mink IgG and/or C3 (71%), typical of immune complexes, along the basal lamina of seminiferous tubules; (d) testes that when eluted with buffer or low pH yielded IgG that was 10-fold enriched in anti-sperm antibody activity as compared with serum IgG; and (e) no immunopathologic evidence of Aleutian mink disease. Although the sperm antigen-antibody complexes in the testis may be important as a pathogenetic mechanism of the testicular disease, there is no correlation between fluorescent anti-sperm antibody detection in the serum and the infertile state. The infertile black mink is a new model of infertility associated with naturally occurring autoimmune disease of the testis.

Animals↗

Epididymoorchitis due to Brucella mellitensis: a retrospective study of 59 patients.

Epididymoorchitis is a focal form of human brucellosis described in 2%-20% of patients with brucellosis. We assessed 59 cases of Brucella epididymoorchitis (BEO) between 1991 and 1999. The median age of patients was 34 years (range, 15-75 years). The onset of symptoms was acute in 46 patients (78%). Scrotal pain and swelling (100% of patients), fever (88%), and sweating (73%) were the most common symptoms. Brucella species was isolated from blood cultures in 41 patients (69%) and from epididymal aspiration in 4 patients. Treatment consisted of a combination of a doxycycline and an aminoglycoside (n=39) or rifampin (n=10); trimethoprim-sulfamethoxazole with rifampin (n=3); or trimethoprim-sulfamethoxazole as monotherapy (n=7). The median duration of therapy was 45 days (range, 21-90 days). The infections of 9 patients (15%) failed to respond to therapy, and 15 patients relapsed (25%). Three patients with necrotizing orchitis whose infections were unresponsive to antibiotics required an orchiectomy. In general, classical brucellosis therapy is adequate for BEO.

Adolescent↗

Doppler ultrasound of the testis in azoospermic subjects as a parameter of testicular function.

Azoospermia frequently represents the end-point of different pathological conditions that cause important quantitative and qualitative alterations of both spermatogenesis and testicular structure, including intratesticular blood vessels. In this study we performed colour Doppler ultrasound of the testis in 12 azoospermic subjects affected by primary testicular pathology (four bilateral post-orchitis, four postradiotheraphy for cancer, four post-traumatic) aged 28.2+/-3.3 (mean+/-SD) years, in six subjects affected by obstructive azoospermia aged 29.7+/-2.4 years and in 20 age-matched fertile subjects (aged 28.6+/-2.5 years). The analysis of intratesticular vessels per organ was quantified using a semiquantitative score: category 0, no vessels visible; category 1, between one and three intratesticular vessels visible; and category 2, more than three vessels visible. In obstructive azoospermic patients and in fertile subjects there were always more than three intratesticular vessels. No intratesticular vessels were detected in eight testes (33.3%) and fewer than three vessels in 16 testes (66.6%) in subjects affected by primary testicular pathology. In azoospermic subjects the testicular structure of the testis was evaluated by diagnostic fine needle aspiration cytology (FNAC) performed in the middle portion of the testis. In non-obstructive azoospermic patients this procedure showed the presence of only Sertoli cells in all cases. When detectable vessels were present, a new aspiration was performed in these areas. In 12 out of 16 cases, spermatogenetic cells including mature spermatozoa, were found when the FNAC was performed in testicular regions showing the presence of blood vessels. These results indicate that colour Doppler sonography of the testis may be useful in the differential diagnosis of azoospermia and suggest the evaluation of the intratesticular blood vessel distribution before performing any method to retrieve intratesticular spermatozoa for intracytoplasmic sperm injection.

Adult↗

Relevance of male accessory gland infection for subsequent fertility with special focus on prostatitis.

Infections of the male genitourinary tract may contribute to infertility to a various extent depending on the site of inflammation. Especially in prostatitis, the exact classification of the infection contributes to its impact on changes in the ejaculate. Similarly, in urethritis, epididymitis and orchitis, only a clear clinical diagnosis allows a rational approach to altered sperm parameters. Several inflammatory and reactive alterations of sperm quality seem to be proven; nevertheless, the impact of these findings on male fertility remains in many cases unclear. Even therapeutic trials do not provide more insights into the association of male genital infections and impaired fertility, although the efficacy of antibiotic trials seems to be proven. For the future, it may be decisive to evaluate inflammatory changes in the ejaculate not only on the basis of standard but also on functional parameters, thus providing new definitions of the interactions between male urogenital tract infection and disturbances of male fertility.

Anti-Bacterial Agents↗

Effectiveness of long-acting gonadotrophin-releasing hormone agonist treatment in combination with conventional therapy on testicular outcome in human orchitis/epididymo-orchitis.

A group of 24 patients suffering from acute post-pubertal orchitis/epididymo-orchitis were prospectively randomized to treatment over a total period of 3 months with a combined conventional plus long-acting gonadotrophin-releasing hormone analogue (GnRHa) (leuprolide, 3.75 mg every 27 days) therapy (n = 13, group A) or conventional therapy alone (n = 11, group B) respectively, in order to verify any differences in clinical and sperm outcome during treatment and follow-up. Seven patients affected by uncomplicated mumps (group C), receiving GnRHa for 3 months, served as an additional control group. Combined leuprolide plus conventional therapy provided better outcomes than conventional therapy alone in terms of scrotal ultrasound scans and serum antisperm antibodies (ASA) at time of presentation and monthly thereafter throughout the study: the most solid data relate to testicular atrophy in three out of 11 patients from group B and their sAb positivity persisting, as opposed to zero out of 13 in group A. Moreover, semen analyses performed at 3-6 months after therapy withdrawal revealed in groups A and C mean total sperm counts and percentages of oval forms significantly higher than those observed in group B. It is concluded that GnRHa treatment is a promising pharmacological tool with no side-effects, effective in reducing testicular vascular leakages in male orchitis.

Adult↗

Mechanism of infertility in male guinea pigs immunized with sperm PH-20.

PH-20, a testis-specific protein first expressed in haploid germ cells, is present on the posterior head plasma membrane and inner acrosomal membrane of mature guinea pig sperm. PH-20 is bifunctional, having a hyaluronidase activity that allows sperm to penetrate the cumulus layer and a separate activity required for binding of acrosome-reacted sperm to the zona pellucida. The immunization of male guinea pigs with PH-20 reproducibly results in infertility with a duration of 6-12 mo or longer. In this study, we analyzed the immunopathology in the reproductive tract of PH-20-immunized males to probe the mechanism(s) responsible for the induced infertility and found two separate effects. Remarkably, in almost all infertile, PH-20-immunized males, the caudae epididymides were empty (contained no sperm) or contained only abnormal sperm. The complete loss of normal sperm in the epididymis apparently results in infertility. A second effect was the induction of experimental autoimmune orchitis (EAO), representing the first report of EAO induced by a purified testis/sperm molecule of known functions. PH-20-induced EAO differed from EAO induced by crude testis antigens in two respects: 1) an absence of epididymitis with abscess and granuloma and 2) the presence of antibody on germ cells within seminiferous tubules and inside the cauda epididymidis. The former suggests that crude testis antigens other than PH-20 are responsible for epididymitis, and the latter suggests a possible role of antibody in EAO pathogenesis and infertility induction. Return to fertility, after 6-12 mo, was accompanied by regression of EAO and reappearance of spermatozoa in the caudae epididymides.

Animals↗

Scintiscan for acute intrascrotal conditions.

The efficacy and merit of testicular imaging, utilizing Tc-99m pertechnetate, were studied prospectively in a group of patients who presented with acute onset of scrotal pain. Consecutive admissions were studied. All were managed according to the likelihood of the problem being testicular torsion, which was determined from the clinical history, physical examination and the routine laboratory data. The final diagnostic outcome, whether by surgical exploration or clinical progress with conservative treatment, is collated with the preoperative scintigraphic interpretations, made with respect to predefined criteria. Analysis of the pretreatment images obtained in 57 patients shows that the radionuclide study is highly reliable in cases of testicular torsion and epididymo-orchitis. It appears to be much less dependable, however, in the other acute scrotal conditions. Torsions that are intermittent in nature or corrected manually apparently can have variable presentations. Certain difficulties and potential pitfalls encountered in interpreting the scintigraphic studies are discussed.

Abscess↗

Comparison of radionuclide imaging and ultrasonography in the differentiation of acute testicular torsion and inflammatory testicular disease.

PURPOSE: Torsion of the testis is a urologic emergency that requires early diagnosis and prompt surgical treatment for testicular survival. However, the early differential diagnosis of acute testicular torsion from epididymitis or orchitis is often difficult. The aim of this retrospective study was to evaluate and compare the value of Tc-99m pertechnetate radionuclide imaging and ultrasonography in the differentiation of acute testicular torsion and inflammatory testicular diseases. METHODS: Twenty patients (age range, 5 to 38 years) with possible acute testicular torsion from July 2000 to July 2001 were enrolled in this study. Ultrasonography was performed in all patients in the emergency room. Within 3 hours of ultrasonography, radionuclide imaging was also performed after intravenous injection of 5 to 15 mCi Tc-99m pertechnetate in the forearms. All of the patients with clinically suspected acute testicular torsion underwent surgery. The surgical findings and pathologic reports of these patients were reviewed and definite diagnoses were established. None of the other patients had surgery and were followed clinically for at least 1 month after ultrasonography and radionuclide imaging. RESULTS: Four patients with testicular torsion, 13 patients with inflammatory testicular disease, and three healthy persons had a final surgical and pathologic diagnosis or clinical follow-up, and all were accurately diagnosed by Tc-99m pertechnetate radionuclide imaging. In contrast, ultrasonography was less accurate in the diagnosis and differentiation of acute testicular torsion from inflammation. Only 1 of 4 patients with testicular torsion, 5 of 13 patients with inflammatory testicular disease, and 2 of 3 healthy persons were diagnosed by ultrasonography. CONCLUSIONS: The results indicate that Tc-99m pertechnetate radionuclide imaging is a more useful and accurate imaging method than ultrasonography in the detection and differentiation of acute testicular torsion from inflammatory testicular disease in patients with acute scrotal pain.

Acute Disease↗

Group G streptococcal bacteremia in a healthy young man.

Group G streptococcal bacteremia was detected in a 20-year-old man in association with bilateral epididymitis and orchitis. This patient showed none of the predisposing risk factors for group G streptococcal bacteremia which have been documented previously.

Adult↗

A survey of the prevalence of epididymitis in an industrial setting.

In response to concerns about the occurrence of epididymitis among employees at a Du Pont textile fibers plant, information was obtained from 1342 (94.8%) active male employees on history of epididymitis and/or orchitis (6.8%), prostatitis (11.5%), other genitourinary conditions, and vasectomy. Vasectomy was associated with an odds ratio of 3.26 (90% confidence interval (CI) = 1.96, 5.43) for subsequent development of epididymitis. History of prostatitis was also a risk factor for epididymitis (odds ratio = 5.02, 90% CI = 2.94, 8.58).

Delaware↗

Suppression of efferent limb of testicular autoimmune response by a regulatory CD4+ T cell line in mice.

A murine T cell line (designated as C.Ts) as a mediator of suppression of experimental autoimmune orchitis (EAO) was established. The method of establishment of C.Ts cell line was preparing spleen cells from C3H/He mice hyperimmunized with testicular germ cells (TC) and the repeated selection of the lymphocytes in vitro by stimulation with mouse testicular antigens (mTA). The C.Ts cells were Thy1.2+, surface immunoglobulin-, CD3+, CD4+ and CD8-. The cells could suppress the induction of EAO when transferred into actively EAO-sensitized mice only at the pre-clinical stage of the disease (efferent limb of the autoimmune response). The transferred C.Ts cells significantly inhibited both cellular and humoral immune responses to TC in the recipients in an antigen-specific manner. The disease suppression by C.Ts cells was found to depend upon their cell number, and their suppressive activity was markedly augmented by in vitro stimulation with mTA.

Animals↗

Lymphocyte infiltration in human testicular biopsies.

Testicular biopsies from 166 men with a clinical diagnosis of azoospermia or oligozoospermia were analysed for the presence of leucocytic infiltrations. In 8 cases (4.8%) a pronounced focal or general leucocytic infiltration was found. In all cases the vast majority of the cells were lymphocytes and their presence was not correlated to the histopathological diagnosis. Usually the lymphocytes were within the interstitial tissue, but in one case the lymphocytes were migrating through the wall of the seminiferous tubules. The spermatogenesis was most disturbed in the tubules located beneath the lymphocytic infiltrations. The changes observed were morphologically very similar to those described in experimental autoimmune orchitis and therefore it may be suggested, that immunological processes might mediate the deleterious effects of different factors on the testis more often than has been suspected.

Autoimmune Diseases↗

The diagnosis of testicular swellings using water-path ultrasound.

Water-path ultrasound was used to investigate 29 patients with swellings of the testicle. When the swelling contained fluid, such as a hydrocele or a cyst of the epididymis, it was accurately depicted in the ultrasound scan. Seminomas appeared as anechoic areas which could not be distinguished from granulomatous orchitis, but were clearly different from the homogeneous echo pattern of the normal testis. The depiction of the epididymis was less clear. Water-path ultrasonography is a promising addition to our diagnostic armamentarium.

Dysgerminoma↗