Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0079731 (B-cell lymphoma)
 16,671 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 51-year-old man without human immunodeficiency virus, hepatitis B virus or hepatitis C virus was admitted with left scrotum swelling and hydrocele. The cytological finding of fluid in the left scrotum revealed malignant lymphoma, and the immunophenotypic analysis and monoclonal rearrangement of immunoglobulin heavy chain demonstrated B-cell lymphoma. However, no solid tumor of lymphoma was identified in the specimen following a left orchiectomy, or in any other body site and genomic human herpes virus-8 and Epstein-Barr virus were not detected in the lymphoma cells. So we interpreted this as a primary effusion lymphoma without any ethological viral infection. Subsequently, he underwent chemo-radiation therapy and has remained in remission.
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PMID:Primary effusion lymphoma of the left scrotum. 1272 25

Diffuse large B-cell lymphoma that develops in the setting of long-standing chronic inflammation is typically associated with Epstein-Barr virus, and usually presents as tumor mass involving body cavities, as in pyothorax-associated lymphoma. It is listed as a distinct entity in the latest World Health Organization lymphoma classification. We report four cases that were incidentally discovered on histologic examination, one each in a splenic false cyst, a long-standing hydrocele, an atrial myxoma, and metallic-implant wear debris. Microscopic foci of atypical (neoplastic) large lymphoid cells were found within the contents of the cysts or curettage material, or within the stroma of the atrial myxoma. Despite the diverse clinical scenarios, all cases showed a homogeneous phenotype: positivity for B-lineage markers (CD20+, CD79a+, PAX5+), non-germinal center immunophenotype (CD10-, BCL6-/+, MUM-1+), and positivity for Epstein-Barr virus with type III latency (LMP1+, EBNA2+). The last feature supports the hypothesis that the lymphoma has arisen in a setting of 'local immunodeficiency' as a result of long-standing chronic inflammation in an enclosed space, a characteristic pathogenetic mechanism of diffuse large B-cell lymphoma associated with chronic inflammation. These cases therefore expand the spectrum of this entity to include new clinical scenarios for the development of this lymphoma type.
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PMID:Diffuse large B-cell lymphoma associated with chronic inflammation as an incidental finding and new clinical scenarios. 2006 8

Non-Hodgkin's lymphoma as a primary testicular neoplasm accounts approximately 9% of all testicular malignant tumours and about 1-2% of all non-Hodgkin's lymphoma. This neoplasm is the most common malignant tumour of the testis in the elderly. The most common histotype in primary forms is the diffuse large B-cell lymphoma, whereas more aggressive histologies such as Burkitt's lymphoma are principal founded in cases of secondary involvement of the testis. Regarding clinical presentation, the most common sign is a unilateral painless scrotal swelling, sometimes with sharp scrotal pain or hydrocele. In patients with advanced stage, the systematic B symptoms are present in 25-41% of all cases. In 35% of patients, bilateral testicular involvement is detected. In more advanced stages with para-aortic lymph-node involvement, ascites and abdominal pain is evident. Despite the fact that responses to doxorubicin- containing chemotherapy, especially in early stages, show good results, relapses are often seen, and the prognosis of this tumour is very poor. Testicular lymphoma often disseminates to other extranodal organs, such as contralateral testis, central nervous system (CNS), lung, pleura, Waldeyer's ring and soft tissue. For patients with limited disease, the recommended first-line treatment is orchiectomy followed by rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) combination chemotherapy, with central nervous system (CNS) prophylaxis and prophylactic irradiation of the contralateral testis. In more advanced or relapsed disease, management should follow the worldwide recommendations for nodal diffuse large B-cell lymphoma (DLBCL). Here we present a review of this tumour.
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PMID:Lymphoma of the testis as primary location: tumour review. 2046 16

Primitive NHL represents 9% of testis tumours and the 85% is diagnosed in patient older thant 60 years old. Usually pain and a testis mass are the main manifestations. The Authors report the case of a 82 years-old man with bilateral hydrocele causing severe alteration in the deambulation. The cytology did not show blood cells or neoplastic cell in the FNAB. The US showed a complete modification in the testis. The patient underwent to surgery intervention of vaginalis tunic eversion and resection with the aim of control the symptoms. The histology on multiple biopsy of testis and epidydims bilaterally showed a large B-cell lymphoma. The patient was treated with 6 chemotheray cycles (Rituximab, Vincristine, Cyclophosphamide, Prednisone). Bilateral hydrocele is a rare clinical presentation of testis NHL. In this patient, blood and neoplastic cell absence in the cytology made difficult the differential diagnosis between inflammatory pathology and neoplasia. Hystopathologic study and immunologic pattern can make a certain diagnosis.
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PMID:[The age factor in bilateral hydrocele diagnosis secondary to a primitive testis lymphoma: case report, diagnosis and therapy]. 2236 40

Primary testicular lymphoma (PLT) represents 5% of testis tumors, the incidence increases in patients older than 60 years of age. Bilateral hydrocele is an unusual clinical presentation. Relapse in the central nervous system and in the contralateral testis is often observed. The US shows hypoechoic nodular lesions with a complete structural involvement of didymus and hypervascularization at Color Doppler. Orchiectomy should be performed in all cases as it is indispensable for the histopathological diagnosis and to characterize the immunophenotypic features. The most common histotype is diffuse large-B cell lymphoma. Combined biological approach and chemotherapy with rituximab and doxorubicin has radically changed the prognosis of disease. The authors report two patients of 81 and 82 years-old who referred for evaluation of massive bilateral hydrocele causing severe limitation of deambulation. Negative cytological findings for neoplastic cells in the scrotal effusion made difficult the differential diagnosis between inflammatory and malignant disease. Histopathologic findings made a diagnosis of high grade diffuse large B-cell NHL, respectively stage IV-E and stage III-E. The 82 years old patient was treated with 6 chemotherapy cycles of rituximab, cyclophosphamide, vincristine, prednisone. The exitus was dued to the umbilical hernia complications. In the 81 years old patient, cognitive deficit and severe impairment of general conditions constituted an absolute contraindication to polychemotherapy treatment. Rapid tumor progression led the patient to exitus 2 months after diagnosis. In both patients the delayed diagnosis of PLT was probably due to the reduction of welfare protection in the elderly with adverse social conditions.
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PMID:Bilateral hydrocele. Uncommon clinical presentation of primary testicular lymphoma in the elderly. 2838 26