Immunohistochemical expression of perforin in adult systemic lupus erythematosus associated macrophage activation syndrome: Clinicohematological correlation and literature review.

Objective: To study the bone marrow (BM) immunohistomorphological characteristics in adult systemic lupus erythematosus (SLE) associated macrophage activation syndrome (SLE-MAS).

Materials And Methods: Immunohistochemical (IHC) expression of CD3, CD8, perforin (PFN), and CD163 was studied on BM trephine biopsies from 30 cytopenic adult SLE cases (male: female = 1:5, age; 24 years, range; 19-32) and compared them with ten age matched controls. Clinicopathological parameters were compared among the cases likely (L) or unlikely (U) to have MAS using probability scoring criteria.

Core-binding factor abnormalities involving chromosome 16 in acute myeloid leukaemia: prognostic and therapeutic implications.

Core-binding factor (CBF) abnormality-associated myeloid neoplasms incorporate acute myeloid leukaemia (AML) (CBF-AML) with translocation t(8;21)(q22;q22.1) ( fusion) and inv(16)(p13.1q22) or translocation t(16;16)(p13.

Acute Myeloid Leukemia following Radioactive Iodine Therapy for Metastatic Follicular Carcinoma of the Thyroid.

Radioactive iodine (RAI) therapy is widely used and has an important role in the management of hyperthyroidism and thyroid malignancies. The development of acute or chronic leukemia is a very rare complication of RAI therapy. We report a case of metastatic Follicular thyroid cancer (FTC) who underwent total thyroidectomy followed by treatment with a cumulative dose of 1600 mCi of RAI (for 4 years) and by palliative radiotherapy for L4 spinal metastasis, later on, developed acute myeloid leukemia.

Coinfection of Melioidosis and Tuberculosis Causing Infective Lumbar Spondylodiscitis: A Rare Case Report.

Case: A 63-year-old farmer who is a known diabetic and chronic alcoholic presented with lower back pain and neurological weakness of lower limbs present for the past 3 months. His acute phase reactants were very high, and magnetic resonance imaging displayed L4-L5 vertebral involvement with epidural, paravertebral, and bilateral psoas abscesses. Cultures of an ultrasound-guided aspiration from the psoas were positive for Burkholderia pseudomallei, and a nucleic acid amplification test also detected Mycobacterium tuberculosis.

Gingival hyperplasia: An initial oral manifestation of acute myeloid leukemia.

Various systemic diseases can manifest oral signs and symptoms early, which may be crucial for diagnosis and outlining the treatment plan. This case report highlights the presentation of acute leukemia (a malignancy of white blood cells) in a young female. An 11-year-old girl presented with gingival overgrowth and bleeding from the gingiva, weakness, and recent history of weight loss.

Eosinophilic Granuloma as a Solitary Lytic Lesion of the Cervical Spine in a Child.

Introduction: Eosinophilic granuloma (EG) is a type of Langerhan cell histiocytosis (LCH) with unknown etiology. This benign tumorous lytic lesion affects mainly children or young adults, causing bone destruction. Although, the flat or the long bones are commonly affected, localized spinal involvement in pediatric age group is rare.

Usefulness of Leucocyte Cell Population Data by Sysmex XN1000 Hematology Analyzer in Rapid Identification of Acute Leukemia.

Unlabelled: Leukocyte cell population data (CPD) generated by hematology auto analyzers are reported to be useful in screening of sepsis patients. However, there is a paucity of literature highlighting the utility of CPD in screening of acute leukemias (AL). Leucocyte CPD obtained by Sysmex XN1000 hematology analyzer from 210 cases of ALs [22 acute promyelocytic leukemia (APL), 79 non-APL acute myeloid leukemia (non-APL-AML) and 109 acute lymphoblastic leukemia (ALL)] were compared with 100 healthy and 52 reactive controls.

Cyclooxygenase 2 (Cox 2) Expression in Newly Diagnosed Plasma Cell Myeloma: A Clinicopathological and Immunohistochemical Study on 73 Cases from a Single Tertiary Care Center.

To study the cyclooxygenase 2 (Cox 2) expression in newly diagnosed plasma cell myeloma cases by immunohistochemistry (IHC) and correlate with clinicohematological characteristics. Immunohistochemical expression of Cox 2 on bone marrow trephine biopsy was studied in newly diagnosed myeloma [56 males, 17 females, median age; 58 years (36-75)] and fifteen controls using SP21 clone antibody. A median immuno-score (proportion x intensity) stratified the entire cohort into low and high expressors.

Primary gastrointestinal anaplastic large cell lymphoma: A critical reappraisal with a systematic review of the world literature.

Anaplastic large cell lymphoma (ALCL) is a distinct T-cell non-Hodgkin lymphoma involving both nodal and extra-nodal sites with a specific anaplastic lymphoma kinase 1 (ALK-1) gene rearrangement. The commonly involved extranodal sites include skin, bone, soft tissue, lungs, and liver. ALCL primarily involving gastrointestinal (GI) tract is rare.

Pulmonary anaplastic large-cell lymphoma: A case-based systematic review of world literature.

We describe a case of ALK1 negative (-) pulmonary anaplastic large-cell lymphoma (pALCL) in an adult female with an unfavorable outcome following combination chemotherapy and present a systematic review of 39 such sporadic cases reported over the past 28 years (1990-2018). pALCL occurred in 26 males and 13 females (median age, 43 years [5-81]) and 13/39 (33.33%) were ≤18 years.

Acquired Pure Red Cell Aplasia and Recombinant Erythropoietin.

Recombinant erythropoietin (rEPO)-associated immunologically driven acquired pure red cell aplasia (PRCA) is an underreported, potentially worsening clinical syndrome in the setting of treatment of anemia of chronic kidney disease. Most cases reported in world literature are related to different formulations of erythropoiesis-stimulating agents with an implication in diagnosis and management. This brief review highlights the clinical guidelines of rEPO usage in nephrology practice, the pathophysiologic mechanism of PRCA, clinical features, diagnosis, and suggested management protocols.

Ergotamine Induced Retroperitoneal Fibrosis.

Retroperitoneal fibrosis (RPF) is an uncommon disease characterised by the presence of fibroinflammatory reaction which starts around the infrarenal portion of the abdominal aorta in the retroperitoneum and frequently entrap the ureter causing obstructive uropathy. Approximately, two thirds of the cases are idiopathic, where aetiopathogenesis is not known. Ergotamine-induced RPF, although rare, is considered under secondary group.

Clinicopathological and Immunohistochemical Profile of Mantle Cell Lymphoma: An Institutional Experience.

Introduction Mantle cell lymphoma (MCL) is a biologically aggressive B-cell non-Hodgkin lymphoma (NHL) with distinctive morphologic, immunophenotypic, and molecular characteristics. Differentiation from other chronic lymphoproliferative disorders is essential for prognostication. Aim This paper aims to study the clinicopathological features of MCL with emphasis on immunohistochemical features and disease correlation.

Bone marrow trephine immunohistochemistry is useful in characterizing malignancy-associated myelonecrosis: A retrospective observational study.

Objective: We aim to describe the utility of immunohistochemistry (IHC) in characterizing malignancy-associated myelonecrosis (MN) on bone marrow trephine biopsies (BMBx) as a part of initial workup.

Materials And Methods: Patten and intensity of antigenic immunoexpression in necrotic tumor cells on BMBx were evaluated in a series of cases using standardized avidin-biotin-complex immunoperoxidase technique after heat-induced epitope retrieval and compared the same with viable tumor cells wherever available.

Results: Fifteen out of 2494 (0.

Thyroid paraganglioma: A case-based systematic review of literature.

Thyroid paragangliomas are distinctly rare primary thyroid neoplasms with nearly 75 cases reported worldwide. Due to their similar embryological origin and cytohistomorphology with other thyroid neoplasms, they may pose great diagnostic challenges for pathologists, radiologists, endocrinologists, as well as surgeons leading to unnecessary aggressive therapy. With recent advances in molecular genetics, the prognostic significance of such seemingly innocuous thyroid neoplasms has been better understood.

Peripheral blood T lymphocytosis in thymoma: an insight into immunobiology.

Purpose: Peripheral blood T lymphocytosis (PBTL) is a rare, yet poorly understood manifestations of thymoma, which is postulated to be linked with autoimmune/paraneoplastic manifestations such as myasthenia gravis (MG), pure red cell aplasia (PRCA), etc.; more commonly encountered in this neoplasm.

Method: We aim to describe the flowcytometric immunophenotypic data of PBTL in a 43-year-old male; 6 months after successful completion of chemoradiotherapy (CT/RT) for a large, invasive, and metastatic type B1 thymoma; and present a comprehensive review of all such cases reported over last 42 years (N = 21) (1977-2019).