Plasmablastic immunoglobulin-secreting lymphoma
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Plasmablastic lymphoma
Human immunodeficiency virus (HIV)-related lymphomas are predominantly aggressive B-cells lymphomas. The most prevalent of the HIV-related lymphomas are diffuse large B-cell non-Hodgkin's lymphoma (NHL), which includes primary central nervous system lymphoma, and Burkitt lymphoma, whereas primary effusion lymphoma, plasmablastic lymphoma (PBL), and classic Hodgkin lymphoma are far less frequent. Of these, PBL is relatively uncommon and displays a distinct predilection for presentation in the oral cavity. In this manuscript, we report a primary testicular form of PBL in 44 year-old Border Security HIV positive patient who presented with bilateral testicular swelling of 1-year duration. On cytopathological and subsequent histopathological examination, the diagnosis of bilateral plasmablastic NHL was made. Extensive systemic work-up failed to reveal any disease outside the testes. Immune suppression rather than HIV itself is implicated in the pathogenesis of lymphomas. Herein, we report a case of PBL as AIDS-related malignancy presenting in testes and its correlation with CD4+ count.
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Primary effusion lymphoma
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Extramedullary plasmactyoma is the solitary, soft tissue form of plasma cell neoplasm but lack the defining features of medullary or multiple myeloma. The diagnosis is difficult to make in routine practice setting due to the morphological and immunohistochemical overlap with plasmablastic lymphoma. We report a case of plasmablastic extramedullary plasmacytoma in a 52-year-old in the mandibular lingual gingiva and discuss its differential from plasmablastic lymphoma. The gingival mass regressed with primary radiotherapy.
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Plasma cell neoplasm
Plasma Cell Myeloma
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Epstein-Barr virus (EBV)-positive plasmacytoma is a rare and unique plasma cell neoplasm that could arise in immunocompetent individuals. Given the molecular and immunohistochemical similarity of EBV-positive plasmacytomas to their significantly more aggressive counterpart, plasmablastic lymphoma (PBL), providers must distinguish between the two neoplasms. This case elucidates a presentation of EBV-positive plasmacytomas in a healthy, immunocompetent individual originating in the C4/C5 cervical neck region. The patient's clinical presentation, in combination with the surgical pathology from the mass biopsy, pointed toward EBV-positive plasmacytoma. Factors such as cellular proliferation rate, cellular atypia, and immunohistochemical staining help differentiate the two diseases. This case will further help providers in the oncologic world to identify these masses.
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Plasma cell neoplasm
Neck mass
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Abstract Non-Hodgkin lymphomas associated with acquired immunodeficiency syndrome are heterogeneous. Recently, a novel subtype of non-Hodgkin lymphoma occurring mostly in patients with acquired immunodeficiency syndrome has been described and designated as plasmablastic lymphoma. The histomorphologic and immunophenotypic findings of this distinct subtype of non-Hodgkin lymphoma have been characterized previously. Most patients present with oral cavity involvement. We report a case of plasmablastic lymphoma presenting as a lung tumor. To our knowledge, this is the first case report of this unusual subtype of diffuse large B-cell lymphoma in this location.
Plasmablastic lymphoma
Large cell
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Non-Hodgkin lymphomas associated with acquired immunodeficiency syndrome are heterogeneous. Recently, a novel subtype of non-Hodgkin lymphoma occurring mostly in patients with acquired immunodeficiency syndrome has been described and designated as plasmablastic lymphoma. The histomorphologic and immunophenotypic findings of this distinct subtype of non-Hodgkin lymphoma have been characterized previously. Most patients present with oral cavity involvement. We report a case of plasmablastic lymphoma presenting as a lung tumor. To our knowledge, this is the first case report of this unusual subtype of diffuse large B-cell lymphoma in this location.
Plasmablastic lymphoma
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Aims Extramedullary plasmacytomas are often localized, clinically indolent neoplasms, and affected patients usually respond to radiation therapy or limited cycles of chemotherapy. In contrast, plasmablastic lymphomas are clinically aggressive neoplasms composed of immunoblastic or plasmablastic cells and associated with more mature plasma cells in some cases. Patients with plasmablastic lymphoma usually have a poor prognosis despite aggressive chemotherapy. Evidence of Epstein–Barr virus ( EBV ) infection is uncommon in plasmacytoma, but common in plasmablastic lymphoma, and is therefore helpful in differential diagnosis. The aim of this study is to describe four cases of plasmacytoma arising in immunocompetent individuals that were diffusely positive for Epstein–Barr virus‐encoded small RNA as shown by in‐situ hybridization. Methods and results We describe the clinicopathological and immunophenotypic findings of four EBV ‐positive plasmacytomas arising in immunocompetent patients. These tumours were characterized by diffuse proliferation of mature‐appearing plasma cells intermixed with a briskly reactive, CD 8‐positive, TIA ‐1‐positive cytotoxic T‐cell infiltrate. Long‐term follow‐up was available for all patients, and all were alive and free of disease at last follow‐up (median 43.4 months). Conclusions We suggest the term EBV ‐positive plasmacytoma in immunocompetent patients for these lesions. It is essential to distinguish these tumours from plasmablastic lymphoma, as the latter diagnosis is associated with a much poorer prog‐nosis, and patients require much more aggressive therapy.
Plasmablastic lymphoma
Epstein–Barr virus infection
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