Common Testicular Tumors Research Articles

Changes in adhesion molecules: β-catenin, E-cadherin and Galectin-3 in cells of testicular seminoma.

The most common testicular tumors are seminomas. They are characterized by rapid growth and a very high potential for metastasis to other organs. Mutual interactions of tumor cells play an important role in the invasiveness and metastatic capacity, in which complexes of adhesion proteins play a special role. There is a lack of studies on changes in these molecules and their behaviour in testicular cancer. The aim of the study was immunohistochemical identification and evalutaion of adhesive molecules β-catenin, E-cadherin, galectin-3 in testicular cancer - seminoma. Tests were performed on sections of testicular cancer - seminoma in comparison with unchanged tissue samples as a control. Material was taken from 30 patients who underwent orchiectomy. Immunohistochemistry and PCR were used to identify β-catenin, E-cadherin and galectin-3 and gene expression. Immunoreactivity and expression of β-catenin and E-cadherin in seminomas were markedly decreased compared to non-cancerous testicular tissue. Galectin-3 immunoreactivity was found in both control and cancerous tissue, but in different location. In non-cancerous tissue, it was localized in the cytoplasm of the cells of the seminiferous tubules, in seminomas it was localized mainly in the endothelium. The expression of the Lgals3 gene encoding galectin-3 in seminomas was slightl higher in relation to the tissue unchanged by the carcinogenetic process. The results of the study suggest a significant role of β-catenin, E-cadherin and galectin-3 in the carcinogenesis of seminomas and may indicate new aspects of the patomechanism of seminomas formation, and thus time lead to better understand the biology of these tumors.

Imaging Recommendations for Diagnosis, Staging, and Management of Testicular Cancer

AbstractThe common testicular tumors affect young males in the third and fourth decades and germ cell tumors especially have excellent post-treatment outcomes. Hence, guidelines for clinical, radiological, and tumor marker assessment for diagnosis, response assessment, and surveillance of these tumors have critical impact on the management of these tumors. This article aims to discuss the current recommendations and guidelines regarding the clinical and radiological assessment and treatment pathways of testicular tumors.

PI3K/AKT/mTOR pathway mediated-cell cycle dysregulation contribute to malignant proliferation of mouse spermatogonia induced by microcystin-leucine arginine.

Environmental cyanotoxin exposure may be a trigger of testicular cancer. Activation of PI3K/AKT/mTOR signaling pathway is the critical molecular event in testicular carcinogenesis. As a widespread cyanotoxin, microcystin-leucine arginine (MC-LR) is known to induce cell malignant transformation and tumorigenesis. However, the effects of MC-LR on the regulatory mechanism of PI3K/AKT/mTOR pathway in seminoma, the most common testicular tumor, are unknown. In this study, mouse spermatogonia cell line (GC-1) and nude mice were used to investigate the effects and mechanisms of MC-LR on the malignant transformation of spermatogonia by nude mouse tumorigenesis assay, cell migration invasion assay, western blot, and cell cycle assay, and so forth. The results showed that, after continuous exposure to environmentally relevant concentrations of MC-LR (20 nM) for 35 generations, the proliferation, migration, and invasion abilities of GC-1 cells were increased by 120%, 340%, and 370%, respectively. In nude mice, MC-LR-treated GC-1 cells formed tumors with significantly greater volume (0.998 ± 0.768 cm3 ) and weight (0.637 ± 0.406 g) than the control group (0.067 ± 0.039 cm3 ; 0.094 ± 0.087 g) (P < .05). Furthermore, PI3K inhibitor Wortmannin inhibited the PI3K/AKT/mTOR pathway and its downstream proteins (c-MYC, CDK4, CCND1, and MMP14) activated by MC-LR. Blocking PI3K alleviated MC-LR-induced cell cycle disorder and malignant proliferation, migration and invasive of GC-1 cells. Altogether, our findings suggest that MC-LR can induce malignant transformation of mouse spermatogonia, and the PI3K/AKT/mTOR pathway-mediated cell cycle dysregulation may be an important target for malignant proliferation. This study provides clues to further reveal the etiology and pathogenesis of seminoma.

Primary testicular lymphoma: Clinical characteristics and oncological outcomes.

Primary testicular lymphoma (PTL) is a rare testicular malignancy, despite being considered the most common testicular tumor in patients older than 60 years. Primary testicular lymphoma represents only 1%-9% of testicular neoplasms. Few studies have been published regarding its clinical features and management. This study aimed to analyze the clinical characteristics and outcomes of PTL. Orchiectomy specimens of 15 patients with PTL diagnosed during 2000-2020 at our institution were retrospectively studied. We collected information on demographic data, clinical features, management aspects, and outcomes of PTL treatment. Kaplan-Meier survival curves and Cox regression analyses were used to study survival. The median patient age was 69 years (interquartile range, 61-72 years). The most prevalent clinical presentation was testicular swelling (80%), and only 13.33% of the patients presented with systemic symptoms. Central nervous system involvement was detected in 6 patients (40%). Of the 15 patients, 5 (33.33%) had stage IE and 10 (66.67%) had stage IVE lymphoma. Diffuse large B-cell lymphoma was the most common histological subtype. Twelve patients (80%) received chemotherapy. During follow-up, 4 patients (26.67%) relapsed. The recurrence rate in the contralateral testicle was 13.33%. The median cancer-specific survival was 21.58 months (95% confidence interval, 0-43.95 months). Univariate Cox regression analysis showed that central nervous system involvement and International Prognostic Index score were significantly associated with shorter cancer-specific survival. Primary testicular lymphoma has a high relapse rate and poor prognosis. Management strategies typically include radical orchiectomy and systemic chemotherapy. Central nervous system involvement and International Prognostic Index scores were associated with lymphoma-specific survival.

Bone marrow metastasis from testicular seminoma in a patient with concomitant follicular non-Hodgkin lymphoma: A case report

Introduction. Seminomas are the most common testicular tumors. Initial therapy includes orchiectomy with resection of local lymph nodes, followed by adjuvant radiotherapy. Testicular tumors usually metastasize to retroperitoneal and mediastinal lymph nodes, lungs, liver, spleen, gastrointestinal tract, and adrenal glands. Bone metastases from testicular tumors are very rare, while seminoma metastasis to the bone marrow is a curiosity, without any references in the scientific literature. Case Report. A 66-year-old patient, previously treated for follicular non-Hodgkin lymphoma, was admitted due to complaints of malaise, abdominal and back pain, and hepatosplenomegaly. After examination and radiologically verified enlarged retroperitoneal lymph nodes, the patient was referred to a hematologist. Based on the patient?s medical history, a relapse of lymphoma was suspected, and bone marrow biopsy was performed. The hematoxylin-eosin staining of the biopsy sample showed diffuse large cell infiltrates with bright cytoplasm, polygonal nuclei and prominent nucleoli. By immunohistochemical staining, the cells showed positivity for cluster of differentiation 10, cluster of differentiation 117, octamer binding transcription factor 3/4, placental alkaline phosphatase, and cytokeratin 8/18, after which the diagnosis of seminoma metastasis to the bone marrow was made. Shortly after the histopathological diagnosis was made, the patient died. Conclusion. A seminoma is a testicular tumor with a favorable prognosis. Due to suppression of hematopoiesis, bone marrow metastases generally lead to the worst prognosis. The outcome of our patient highlights the importance of timely diagnosis and therapy, which would increase the chances of survival.

TESTICULAR YOLK SAC TUMOR IN AN ONE- YEAR AND SEVENT- MONTHS OLD

Background: Yolk sac tumor (YST), which most frequently arises in the gonads as a type of germ cell tumor, is rare in children but is highly malignant. He most common testicular tumor in young children under the age of 3 is yolk sac tumor, and it is also known as infantile embryonal carcinoma. Case Presentation: We present the clinical future YST in an one- year and sevent-months old. In this report, we described testicular of YST in terms of the clinical manifestation, imaging, and histopathology findings, diagnosis and treatment. It has been suggested that alpha-fetoprotein (AFP) can be applied as a feasible tumor marker because its level was elevated in 90% of YST. The treatment generally involves debulking surgery of tumors followed by systemic chemotherapy. Conclusion: Our case report has a good prognosis because good responds with chemotherapy. Although YST is rare in children, pediatric physicians should be aware of this and prompt treatment should be addressed.Keywords: yolk sac tumor, chemotherapy, pediatric

Seminoma with atypical features: Implications of a distinct disease entity

Germ cell tumors are the most common testicular tumors, with seminomas the most frequently encountered type. Seminoma with atypical features is an intermediate entity between classical seminoma and embryonal carcinoma and presents with larger tumor size, necrosis, and marked proliferation. We report such a case of seminoma with atypical features in a 38-year-old male who presented with gradually progressive left-sided testicular mass. A computed tomography scan revealed a heterogeneously enhancing mass with cystic areas. Orchidectomy was done and histopathological examination revealed replacement of entire testis with tumor showing large areas of necrosis with a high Ki-67 index. Multiple sections examined showed only two small foci resembling embryonal carcinoma which was negative for CD 30. Hence, a diagnosis of seminoma with atypical features was given and the patient kept under follow-up.

Bilateral Testicular Plasmacytomas

Intratesticular masses are common and widely presumed to be malignant until proven otherwise. The most common testicular tumors include germ cell and non-germ cell tumors, typically presenting as solitary, unilateral lesions. Some testicular tumors present with bilateral involvement, the most common of which is Leydig cell hyperplasia, with case reports of other synchronous and metachronous bilateral testicular tumors in the literature. Testicular plasmacytomas in the setting of multiple myeloma have been reported as well but are uncommon. Bilateral testicular plasmacytomas are extremely rare. We present sonographic features, with histopathologic correlation in a 71-year-old man who presented with scrotal pain and was found to have bilateral testicular hypoechoic masses confirmed to be plasmacytomas.

Diagnosis of Testicular Choriocarcinoma: A Case Study

Testicular cancer, although relatively rare, is the most common malignancy in men at the age of 15 to 35 years. Germ cell tumor (GCT) is the most common testicular tumor (90%-95%) and peak age of incidence is between 20 years to 50 years. Choriocarcinoma is very rare in male as a pure testicular tumor (&lt;1%) but may be seen as a component of mixed GCT. These tumors characteristically secrete hCG (human chorionic gonadotrophin) into the serum, which use as an important serum tumor marker for these tumors. A 30 years old male presented to us with the complaints of hard feeling of the left testis for 6 months which was initiated with mild pain but the size of the testis was unchanged. On examination there was an indurated area (2cm X 2cm) at lower part of the left testis and epididymis felt separately. He had no history crypto-orchidism, orchitis and scrotal trauma. Ultrasonogram showed a mixed echoic mass lesion (13 X 10mm) at infero-medial aspect left testis with an epididymal cyst. On laboratory investigation his ?-hCG and AFP level were 306 MIU/L(high) &amp; 6.3 IU/L respectively. Contrast enhanced CT scan of the whole abdomen revealed no abnormality except enlarged lymph node (&gt; 1 CM) in right lower lung. Fine needle aspiration cytology (FNAC) showed features of chronic orchitis. We explored his left testis because of high ?-hCG through inguinal approach and suspected testicular tissue was sent for frozen section biopsy which also revealed inconclusive findings. On the basis of his high ?-hCG, we performed left radical orchidectomy. Histopathology of the left testis showed features of Choriocarcinoma, epididymis and spermatic cord were normal. According to TNM classification, AJCC (American Joint Committee on Cancer) staging and international germ cell consensus prognostic classification it was T3N0MISI, stage IIIa and intermediate prognosis group respectively. Postorchidectomy ?-hCG dropped to 7.3 MIU/ML. Now he is on systemic chemotherapy BEP(bleomycin, etoposide, cisplatin). Choriocarcinoma, though is a rare malignancy, it may affect young men in the prime of life and is the most aggressive histologic variant of germ cell tumor. But it has a good prognosis if diagnosed early and treated accurately. Serum ?-hCG level plays most important role in diagnosis, in monitoring therapy and follow-up of patients with choriocarcinoma. DOI: http://dx.doi.org/10.3329/bmj.v40i2.18514 Bangladesh Medical Journal 2011 Vol.40(2): 60-62

A rare case of primary extra-nodal large cell Non-Hodgkin’s Lymphoma of testis

Non-Hodgkin lymphoma (NHL) of the testes is an uncommon extranodal presentation with an incidence rate of 0.06 to 0.09 per 100,000 persons and accounts for about 1% of all NHLs and 5% of all testicular tumors. The disease typically presents in patients aged over 60 years and is the most common testicular tumor in patients older than 60 years. Rightand left-sided testicular involvement is equal in frequency and approximately 6% of testicular lymphomas will have bilateral involvement. Testicular NHL has a relapse site in the central nervous system (CNS). It is actually a rare disease. Our case showed typical features of NHL without any CNS involvement even after 5 years. The patient was offered a standard chemotherapy regimen without any radiotherapy.

Linfoma testicular primario: Presentación de dos casos y revisión de la literatura

We report two cases of primary testicular lymphoma and performed a bibliography review about this pathology. We describe two cases of primary testicular lymphoma in two male patients 69 and 61 yr. old respectively. In both cases, reason for consultation was increase of the right testicular size. After inguinal orchyectomy the diagnosis for the first case was large and medium T cell diffuse lymphoma, stage I (E)-A; three years after chemotherapy (R-CHOP) the patient is in complete remission. In the second case, the diagnosis was diffuse large B-cell lymphoma, and after receiving various chemotherapy regimens died 14 months after diagnosis. Testicular lymphoma is a very rare entity, despite being considered the most common testicular tumor in patients over the age of 60 years. Most of them are non-Hodgkin diffuse, intermediate or high grade of malignancy, B-cell immunophenotype, being T cell exceptional. Prognosis is poor due to their high tendency to systemic dissemination. The treatment is based on orchiectomy, chemotherapy and radiotherapy, although there is not a standardized regimen.

Primary testicular non-Hodgkin's lymphoma: a review article

Primary testicular non-Hodgkin's lymphoma was first described as a clinical entity in 1866. It is a rare disease and accounts for 1% of all non-Hodgkin's lymphoma, 2% of all extranodal lymphomas and 5% of all testicular neoplasms. It is the most common testicular tumor in males between sixty and eighty years of age. Testicular non-Hodgkin's lymphoma is unique in its high incidence of bilateral involvement (8-38%), and it is also the most common bilateral testicular tumor. Testicular non-Hodgkin's lymphoma has a predilection for spreading to non-contiguous extranodal sites, especially the central nervous system. Advanced-stage disease is usually managed with doxorubicin-based chemotherapy. For early-stage disease, opinion is divided regarding systemic chemotherapy following orchidectomy. The high incidence of spreading, especially to the central nervous system, leads to advocacy of the use of central nervous system prophylaxis with intrathecal chemotherapy. Prospective multicenter trials incorporating a large number of patients may lead to better guidelines for optimal management of this subtype of non-Hodgkin's lymphoma.

Clinical features of testicular tumors in children.

Testicular tumors are not common pediatric solid tumors, especially in Asian children. There have been few reviews of cases in Japan to date. We present the clinical features of 14 pediatric testicular tumor patients. Clinical features of 14 testicular tumor patients, such as chief complaints, age at diagnosis, pathology, stages, treatments and prognosis, were examined from medical records. Two patients had their semen tested at adolescence. Of the 14 prepubescent patients, 12 (85.7%) patients were diagnosed before 3 years of age. Ten cases (71.4%) were diagnosed as yolk sac tumors, three (21.4%) as mature teratomas and one case as an epidermoid cyst. Nine cases (90.0%) among the 10 cases of yolk sac tumor were diagnosed as stage I and one case was stage IV. One stage I yolk sac tumor patient developed lung metastasis later. Eventually, two yolk sac tumor patients died, despite chemotherapy. While all the cases with a diagnosis before 2 years of age survived, 67% (2/3) of cases with a diagnosis after the age of 2 died of tumors. Semen analysis in two patients showed normospermia. In the present study, the most common testicular tumors were yolk sac tumors and the patients diagnosed before 2 years of age showed favorable results. Age could be a relapse risk factor in yolk sac tumors. Guidelines for handling testicular tumors in children is not yet well established in Japan. An organized system seems necessary to gather and accumulate the results of the cases in Japan in order to develop better guidelines for treatment.

Neoplasia of the Male Reproductive Tract

Genital neoplasms in the male horse are relatively uncommon. Squamous cell carcinomas and squamous papillomas are the most commonly diagnosed neoplasms of the penis and prepuce. Geldings appear to be overrepresented for these types of neoplasms, and accumulation of smegma may be a contributing factor. Early diagnosis and treatment are essential for salvaging these organs before lesions become excessively large and invasive or are allowed to metastasize. Newer treatment modalities such as 5-fluorouracil appear to be promising alternatives to surgical excision. Although generally considered to be uncommon, testicular tumors may occur more frequently than previously thought and have the potential for devastating effects on stallion fertility. Cryptorchidism appears to play a role in the development of equine testicular tumors, especially teratomas. Seminoma is by far the most common testicular tumor of the mature stallion. Seminomas are rapidly growing tumors with a greater potential to metastasize in the horse than in other domestic species. Leydig cell and Sertoli cell tumors have been reported but are relatively rare in the stallion. Orchiectomy is the standard treatment for most testicular tumors. In certain circumstances, however, such as neoplasia occurring in the only functional testis, local cryotherapy of testicular tumors may prolong the breeding career of an affected stallion.

The Clinical Features of the Common Testicular Tumors

The Clinical Features of the Common Testicular Tumors