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

The incidence and histologic features of malignant lymphomas discovered at the time of prostate biopsy, transurethral resection, and prostatectomy are not well documented. We searched our surgical pathology files for malignant lymphomas identified from prostate surgical specimens from 1989 to 2004. Of 4,831 cases of prostate specimens (3,405 biopsies, 266 transurethral resections, 1,160 prostatectomies) examined at the City of Hope during this period, 29 cases of malignant lymphomas involving the prostate and pelvic lymph nodes were identified (0.6%). These malignant lymphomas can be divided into two groups: 1) 18 incidental cases (0.37%) without prior history of malignant lymphoma; and 2) 11 cases (0.23%) with concurrent known malignant lymphoma. For the first group, the patients with pelvic node involvement ranged in age from 59 to 78 years (mean, 69.2 years; median, 70 years), and the patients with prostate involvement ranged in age from 45 to 78 years (mean, 64.6 years; median, 67.5 years). For the second group, the patients ranged in age from 53 to 80 years (mean, 66.8 years; median, 69 years). Diagnoses of all cases were confirmed by immunohistochemistry or molecular analysis. Ten of 18 cases in the first group involved pelvic nodes only, and the other 8 cases were primary prostatic lymphoma. Of 18 cases in the first group, 13 were small lymphocytic lymphoma/chronic lymphocytic leukemia (SLL/CLL), 3 were marginal zone B-cell lymphoma, and 1 was mantle cell lymphoma. These lymphomas were not readily apparent in most cases by histologic examination, and may be confused with chronic prostatitis when the prostate was involved or with reactive lymphoid hyperplasia when pelvic nodes were involved. Immunohistochemistry and molecular studies may be necessary to confirm the diagnosis. For the second group, prostate and pelvic lymph nodes were involved as part of systemic dissemination of concurrent malignant lymphoma. The diagnosis was usually easily established in these cases. Of 11 cases, 4 were SLL/CLL, 4 were follicular lymphoma, 2 were mantle cell lymphoma, and 1 was diffuse large B-cell lymphoma.
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PMID:Incidental and concurrent malignant lymphomas discovered at the time of prostatectomy and prostate biopsy: a study of 29 cases. 1583 96

In June 2008, a 74-year-old male was diagnosed with IgG4-related disease including histologically proven IgG4-related prostatitis, and then followed as an outpatient. In July 2011, cervical, chest, and abdominal computed tomography (CT) revealed right parotid gland swelling and lymph node enlargement of the supraclavicular, mediastinal, left hilar, porta hepatis, and para-aorta. A biopsy of the right parotid gland was performed, and we diagnosed diffuse large B-cell lymphoma (DLBCL). As malignancies are possible complications for patients with IgG4-related disease, we must be careful in the follow-up of IgG4-related disease patients.
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PMID:A case of IgG4-related disease associated with diffuse large B cell lymphoma. 2618 6

Primary mucosa-associated lymphoid tissue (MALT) lymphoma of the prostate is rare. MALT lymphoma with large cell transformation like a diffuse large B-cell lymphoma (DLBCL) of the prostate is extremely rare. To the best of our knowledge, only one case has been previously reported. A 65-year-old man with difficulty on urination was referred to our department, in April 2014, because of abnormal findings of magnetic resonance imaging (MRI) and positron emission tomography-computed tomography imaging. Routine laboratory tests including prostate specific antigen and soluble interletkin-2 recepter were within normal limits, and the physical examination was unremarkable. In July 2007 and August 2009, he was submitted for a transrectal prostate biopsy, and then a histological examination for chronic prostatitis. In addition to the biopsy, transurethral resection of the prostate was performed. Histological examination revealed primary MALT lymphoma with large cell transformation of the prostate. Complete clinical investigation, including bone marrow biopsy, did not show any involvement of other sites by lymphoma, he received 3 cycles of chemotherapy consisting of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) followed by radiation therapy with a total dose of 46 Gy. The patient has been in complete remission for 6 months after the chemoradiation therapy.
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PMID:[Primary Mucosa-Associated Lymphoid Tissue (MALT) Lymphoma with Large Cell Transformation of the Prostate : A Case Report]. 2627 16