Cases reported "Lymphoma, Non-Hodgkin"

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1/1722. Non-Hodgkin lymphoma in acquired immunodeficiency syndrome manifesting as bilateral hypopyon.

    Orbital lymphoma is a rare event. This is the first case report of a patient with acquired immunodeficiency syndrome-associated lymphoma, in which orbital lymphoma presented as bilateral hypopyon. This was the terminal manifestation of a highly aggressive disease, which progressed despite appropriate treatment.
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keywords = lymphoma
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2/1722. Lymphomatosis cerebri presenting as a rapidly progressive dementia: clinical, neuroimaging and pathologic findings.

    Primary central nervous system lymphoma (PCNSL) usually presents with clinical and neuroimaging findings consistent with single or multiple intracranial mass lesions. On cranial magnetic resonance imaging (MRI), such lesions are nearly always contrast enhancing, reflecting disruption of the blood-brain barrier at the site of tumor nodules. We describe 2 cases from the UCLA Medical Center who developed a rapidly progressive dementia due to extensive gray and white matter cerebral lesions involving much of the brain. In the patient who came to autopsy, widely infiltrating, focally necrotic B-cell plasmacytoid lymphoma was noted throughout the cerebral neuraxis. MRI findings in case 2 were consistent with diffuse lymphomatous brain infiltration without mass lesions, which was biopsy proven. We conclude that PCNSL may occur in a diffusely infiltrating form which may occur without MRI evidence of mass lesions or blood-brain barrier compromise. We refer to this entity as 'lymphomatosis cerebri' and add it to the differential diagnosis of a rapidly progressive dementia.
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ranking = 0.57142857142857
keywords = lymphoma
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3/1722. High-dose chemotherapy with peripheral blood stem cell rescue in blastoid natural killer cell lymphoma.

    A 25-year-old man was referred because of skin rash, lymphadenopathy and anemia. Laboratory examinations revealed severe anemia (Hb, 4.8 g/dl) and elevated levels of GOT, GPT, LDH and soluble interleukin-2 receptor. work-up studies disclosed the involvement of lymphoma cells in lymph nodes, skin, bilateral kidneys and bone marrow. Lymph node biopsy revealed diffuse proliferation of medium- to large-sized lymphoblastic cells. bone marrow aspiration showed massive infiltration of large blastic cells with no cytoplasmic granules. The lymphoma cells in bone marrow and lymph node showed surface CD3-, cytoplasmic CD3epsilon , CD4 , CD8-, CD56 , CD57-, CD16- and CD43 (MT-1) phenotype. Analyses of T cell receptor beta and gamma genes showed germ line configurations. EBER-1 was not detectable in the lymphoma cells. He was diagnosed as having blastoid natural killer (NK) cell lymphoma. In spite of several courses of combination chemotherapy, the lymphoma was progressive. He was then treated with high-dose chemotherapy and peripheral blood stem cell rescue, achieving remission which has now lasted for more than 12 months. We consider that blastoid NK cell lymphoma is an extremely aggressive subtype of CD56-positive lymphomas, and high-dose chemotherapy with peripheral blood stem cell rescue should be included for the choice of the treatment.
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ranking = 1.5714285714286
keywords = lymphoma
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4/1722. Cervicofacial and pulmonary actinomycosis associated with non-Hodgkin's lymphoma.

    A case of cervicofacial and pulmonary actinomycosis associated with non-Hodgkin's lymphoma (NHL) is reported. The patient underwent antimicrobial treatment and surgical debridement of a palatine lesion. Complete clinical recovery was achieved. The presence of actinomycosis may obscure and delay the diagnosis of NHL.
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ranking = 0.71428571428571
keywords = lymphoma
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5/1722. Leukoencephalopathy complicating an Ommaya reservoir and chemotherapy.

    We describe the imaging findings in an unusual case of biopsy-proven, methotrexate-induced leukoencephalopathy complicating a malfunctioning Ommaya reservoir in a patient with lymphoma.
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ranking = 0.14285714285714
keywords = lymphoma
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6/1722. Inflammatory pseudotumour of the liver--evidence for malignant transformation.

    A case of inflammatory pseudotumour of the liver is reported, and evidence is presented for its subsequent evolution into malignant non-Hodgkin's lymphoma. Such postulated malignant transformation challenges the assumption that hepatic inflammatory tumours are entirely benign lesions.
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ranking = 0.14285714285714
keywords = lymphoma
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7/1722. association of body cavity-based lymphoma and human herpesvirus 8 in an hiv-seronegative male. Report of a case with immunocytochemical and molecular studies.

    BACKGROUND: Recently lymphomas arising primarily in serosal surfaces have been found in patients with advanced acquired immunodeficiency syndrome (AIDS), but they very rarely seem to occur in human immunodeficiency virus (hiv)-negative patients. Studies on a subset of these lymphomas suggested that they represent a distinct entity associated with Kaposi's sarcoma-associated herpesvirus or human herpesvirus 8 (HHV-8). CASE: An 83-year-old, hiv-negative male was admitted to the hospital with a massive pleural effusion. Abdominal and chest computed tomographic scanning was normal. Cytologic analysis of the pleural effusion revealed a large cell, non-Hodgkin's lymphoma. polymerase chain reaction analyses on genomic dna from the pleural effusion demonstrated the presence of HHV-8 sequences in the absence of Epstein-Barr virus. CONCLUSION: It is possible and advantageous to diagnose body cavity-based lymphoma with a combination of cytologic, immunocytochemical and molecular studies of the pleural effusion in conjunction with clinical and radiographic information.
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ranking = 1.1442858182829
keywords = lymphoma, large cell
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8/1722. Tonsillar lymphoma and AIDS.

    A case of a patient presenting unilateral tonsillar enlargement, whereby non-Hodgkin lymphoma (NHL) and AIDS were diagnosed, is presented. The clinical and pathological aspects of this pathology, its pathogenicity and treatment are reviewed.
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ranking = 0.71428571428571
keywords = lymphoma
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9/1722. An expert system for the interpretation of flow cytometric immunophenotyping data.

    The development of high-grade non-Hodgkin's lymphomas in hiv-positive patients and patients with acquired immune deficiency syndrome (AIDS) is a well known phenomenon. The proper classification of these neoplasms often requires a multiparameter approach, including the interpretation of a large panel of immunologic markers analyzed by flow cytometry. The availability of individuals with the required expertise to properly interpret these marker studies is limited. For this reason, we have designed an expert system to automate the analysis of immunophenotyping panels in both hiv-related and non-hiv-related hematopoietic neoplasms. The expert system, which we call "Professor Fidelio", runs on IBM-compatible computers under Windows 3.0. The system is designed to accept any number of markers studied from a repertoire of 35 markers. Professor Fidelio functions on the basis of heuristic classification of defined diagnostic patterns. Nine specific patterns (Stem Cell, Myeloid and/or Monocytic, Erythroid, Megakaryocytic, Immature B-cell, Immature T-cell, Mature B-cell, Mature T-cell, and plasma cell) and one "non-specific" pattern have been agreed upon. Fidelio's knowledge base contains the definitions of each of these patterns and the heuristics for excluding patterns when an incomplete panel of markers is performed. The inference engine interprets the findings (including the age of the patient) and reports the patterns which are matched, the differential diagnosis, the suggested diagnosis from the list of differentials if the marker studies are specific, and recommendations for additional tests which may be valuable in establishing the diagnosis.(ABSTRACT TRUNCATED AT 250 WORDS)
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ranking = 0.14285714285714
keywords = lymphoma
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10/1722. Lymphoid lesions of the conjunctiva: relation of histopathology to clinical outcome.

    A retrospective clinicopathologic study of 40 patients with lymphoid lesions of the conjunctiva demonstrated the validity of current histologic criteria in predicting clinical outcome. overall histologic architecture as well as cytologic detail must be used to differentiate benign reactive lymphoid hyperplasia from lymphoma. Lesions verified clinically as being malignant had obvious malignant cytologic features. Clinical signs of surface follicularity, multifocality, and minimal elevation suggest benignancy. All the benign lesions, on histopathologic examination, were either follicular in architecture or composed of mature lymphocytes, and were generally restricted to the substantia propria. Bilaterality and clinical recurrence do not necessarily imply a malignant disease.
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ranking = 0.14285714285714
keywords = lymphoma
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