Publications by authors named "Mohamad Khawandanah"

Primary central nervous system lymphoma (PCNSL) is a rare brain cancer that sometimes presented as rapidly progressive dementia. Diagnosing PCNSL presenting with rapidly progressive neurocognitive symptoms can be challenging, especially when the patient was previously treated with immunosuppressants for suspected autoimmune processes. We present a case where PCNLS was eventually and successfully treated 18 months after neurological symptoms started.

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Introduction: Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is a rare, highly heterogeneous group of mature T-cell neoplasms that historically has been associated with poor outcomes. We sought to investigate the influence of primary disease site on PTCL-NOS outcomes using a large national cancer registry.

Methods: Baseline clinical and demographic data including primary organ of involvement and Ann Arbor disease stage were extracted from the SEER database.

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Background: Advances in treatment for patients with Diffuse Large B-Cell Lymphoma (DLBCL) have led to improved patient outcomes but the magnitude of these disparities remains understudied with regards to improved survival outcomes. We sought to describe changes in DLBCL survival trends over time and explore potential differential survival patterns by patients' race/ethnicity and age.

Methods: We utilized the Surveillance, Epidemiology, and End Results (SEER) database to identify patients diagnosed with DLBCL from 1980 to 009 and determined 5-year survival outcomes for all patients, categorizing patients by year of diagnosis.

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Objective/background: Allogeneic hematopoietic stem cell transplant (HSCT) is the potential curative modality for poor-risk acute myeloid leukemia (AML), relapse remains the main reason for transplant failure. Early-phase studies showed azacitidine is safe for post-transplant maintenance therapy in AML.

Methods: We performed a single institutional prospective cohort study to evaluate the benefit of azacitidine maintenance therapy following allogeneic HSCT in poor-risk AML.

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The impact of residual symptoms following recovery from immune-mediated thrombotic thrombocytopenic purpura (iTTP) on activities of daily living during remission is not routinely discussed or evaluated by hematologists. This study used qualitative methodology to understand 3 issues from the patient's perspective: the most important symptoms during remission, the impact of these symptoms on their daily activities, and the effectiveness of communication with hematologists. Oklahoma and Ohio patients participated in either focus groups or individual interviews.

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Background And Objectives: Graft failure (GF) after cord blood transplant (CBT) has decreased with improved supportive care and cord selection strategies. We aimed to evaluate cord blood selection and factors associated with retransplantation on the incidence of GF, determine risk factors for GF including host antibodies to Kell antigen and evaluate survival after GF.

Materials And Methods: We retrospectively reviewed 84 patients who underwent CBT at the University of Oklahoma between 2000 and 2016 and compared outcomes in patients with/without engraftment by Day 28.

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Therapy-related acute lymphoblastic leukemia represents a distinct entity associated with inferior survival compared with de novo acute lymphoblastic leukemia. It consists of a subset of patients who have had exposure to chemotherapy or radiation for a previous malignancy. Here, we describe a case of acute myeloid leukemia who later developed precursor B cell acute lymphoblastic leukemia and discuss the current relevant literature.

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Background: In the recent COVID19 pandemic, patients with hematological disorders were considered at high risk for severe disease. Limited data is available regarding the course of COVID19 infection in this subgroup.

Case Presentation: We describe a case of a 32-year-old man with paroxysmal nocturnal hemoglobinuria (PNH) undergoing treatment with ravulizumab (Ultomiris) who presented with COVID19 infection.

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Ibritumomab Tiuxetan (Zevalin) is an anti CD-20 murine monoclonal antibody linked to the radio-isotope 90-yttrium (90Y) by the chelator Tiuxetan. It is FDA approved for treatment of relapsed low grade or follicular B-cell Non-Hodgkin's Lymphoma (NHL) or newly diagnosed follicular NHL following an initial response to first-line chemotherapy. Patients may develop Human Anti-Murine Antibodies (HAMA), following exposure to murine antibodies.

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High-dose therapy (HDT) and autologous hematopoietic cell transplantation (auto-HCT) has been anecdotally prescribed in gray zone lymphoma (GZL), showing encouraging efficacy. We conducted a multicenter retrospective study aimed at assessing outcomes after auto-HCT in 32 patients with GZL treated at 9 transplantation centers in the United States. The median age of patients at transplantation was 38 years (range, 18 to 70 years), and the majority were male (n = 21; 66%).

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Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract and usually occur in the stomach and the small intestine. The pancreas is an extremely rare primary site for GISTs and there are 25 reported cases of pancreatic GIST with most being treated with surgical resection. We describe a 52-year-old African-American female who was diagnosed with limited stage small cell carcinoma in November 2009 and treated with concurrent cisplatin/etoposide chemotherapy and radiation.

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Distant gastric metastasis to the skin is uncommonly a presenting symptom, although nonspecific paraneoplastic syndromes with dermatologic manifestation including diffuse seborrheic keratoses (Leser-Trelat sign), tripe palms, and acanthosis nigricans have been described in the literature. We report here the case of a 49-year-old woman with gastric adenocarcinoma who presented with cutaneous metastasis as an initial symptom. In our case, metastatic skin lesions responded significantly to EOX chemotherapy (epirubicin+oxaliplatin+capecitabine) despite progression of systemic disease.

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Background. We hereby describe what we believe to be the first reported case of t (14; 15) (q32; q13) associated with acute myeloid leukemia (AML). Methods.

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Background: Evans syndrome is a rare condition manifested by combined autoimmune hemolytic anemia (AIHA) and thrombocytopenia or neutropenia. It is often associated with other autoimmune disorders, immunodeficiencies, and non-Hodgkin's lymphoma.

Case Report: We describe a patient with Evans syndrome that may have been related to exposure to a polyethylene-based intrauterine contraceptive device (IUD).

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Cutaneous Hodgkin lymphoma is a rare condition. Specific neoplastic involvement can be primary (confined to the skin) or secondary to systemic involvement (metastatic). Cutaneous involvement by HL usually occurs late in the course and is associated with poor prognosis; however in some cases it can exhibit indolent behavior.

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Purpose: Squamous cell carcinoma represents approximately 75% of all anal cancers. Squamous cell carcinoma of the anal canal is a rare malignancy often curable in the early stages with the combined modality therapy of chemoradiation. Treatment in the metastatic setting is challenging due to the rarity of metastatic disease with the majority of patients presenting with curative locally advanced disease, and the ability to design clinical trials for metastatic disease has yet to be explored.

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