Diagnosis Of Plasma Cell Neoplasm Research Articles

Evaluation of the Screening Tests for the Diagnosis of Plasma Cell Neoplasm

Evaluation of the Screening Tests for the Diagnosis of Plasma Cell Neoplasm

Plasma cell proliferations

Plasma cells (PC) are the terminally differentiated effector cells of the B-cell lineage. The aim of this review is to integrate relevant data on the phenotype of plasma cells, including reactive and malignant PC. The current World Health Organization classification of lymphoid neoplasm is based on correlation of their morphologic, histologic, immunophenotypic, genetic and clinical features. The extensive application of imunohistochemistry is necessary in diagnosis of plasma cell neoplasm, but also in determining prognosis as well as in evaluating residual/relapsing disease. This review focuses on immunohistochemical analysis non-neoplastic and neoplastic plasma cell proliferation in facilitating the diagnosis and highlights the recent advances that have been made with regard to their stratifying.

Plasma Cell Neoplasms, Clinicopathological Characteristics and Immunophenotype of 21 Patients

Introduction: Plasma cell neoplasms are monoclonal proliferations characterized by the secretion of an immunoglobulin product known as component "M" or monoclonal. The World Health Organization (WHO 2008) defines as plasma cell neoplasms the following: plasma cell myeloma, plasmacytoma and those syndromes defined by immunoglobulin deposits and primary amyloidosis, The objective of the present work was to correlate their clinical, morphological and phenotype characteristics in 21 patients. Material and Methods: A 2-year retrospective review was performed of the files of the surgical pathology laboratory and of the hematology service of the General Hospital of Mexico, searching for patients with a diagnosis of plasma cell neoplasm. We analyzed the following variables: age, gender, clinical symptoms, evolution, localization, laboratory tests, morphology, and expression of immunohistochemical markers. Of the 21 patients, 12 (57.1%) corresponded to plasma cell myelomas and 9 (42.8%) were plasmacytomas (seven extraosseous and two solitary bone plasmacytoma); women predominated with 61.4% and age ranged between 22 and 84 years. Mass and epistaxis were observed in the patients with plasmacytomas, and symptoms of medullary compression and anemia were observed in those patients with plasma cell myeloma. The time of symptomatology varied from 3 to 12 months. Laboratory tests revealed that lactate dehydrogenase (LDH), beta 2 microglobulin, C-reactive protein were altered and that hypercalcemia and anemia were present more in the systemic form of the disease. Treatment depended on the clinical staging and laboratory data. Mature forms predominated morphologically. Immunohistochemical stain revealed a constant expression for CD 138, six patients expressed CD 56, and expression of the Kappa and Lambda light chains was while.

Exoftalmos unilateral como debut de mieloma múltiple no secretor

A 56 year-old male presented blurred vision and diplopia for 2 months, left unilateral exophthalmos, restricted ocular motility and papilledema. The imaging proofs showed osteolytic lesions in the left sphenoid bone, fourth rib and fourth dorsal vertebral body with associated masses of soft tissues. Biopsy was performed and the diagnosis of plasma cell neoplasm was established. The diagnosis of non-secretory multiple myeloma was made by analytical criteria and bone marrow biopsy. Local radiotherapy and polychemotherapy was prescribed. The ophthalmologist can play an important role in the diagnosis of systemic neoplasms that require the intervention of a multidisciplinary team.

Hodgkin's lymphoma associated with plasma cell neoplasia: Cytological features and review of the literature

Hodgkin's lymphoma (HL) associated with plasma cell neoplasia is extremely rare. Here, we report one case diagnosed by fine-needle aspiration biopsy (FNAB) and review the clinical features of 15 previously reported cases. Our specimen was obtained by FNAB of an enlarged right inguinal lymph node. Air-dried Diff-Quik (DQ)-stained slides and alcohol-fixed slides stained with hematoxylin-eosin (H&E) and Papanicolaou stains were reviewed. The specimen was cellular, consisting of lymphocytes and plasma cells. Flow cytometric analysis revealed a monoclonal (M) plasma-cell population. Admixed large atypical mono- and binucleated cells immunoreactive for CD30 were noted also. A diagnosis of plasma-cell neoplasm associated with classic HL was confirmed histologically after surgical removal of the lymph node. The diagnosis of both HL and plasma-cell neoplasia in the same patient is exceedingly rare. Adding another case to the 15 previously reported cases was unique because our case was diagnosed through FNAB.