Nodular expression of seminoma in the neck: An unusual case presentation.

Seminoma is a malignant germ cell tumor that primarily develops in the testis but can occur in other extragonadal areas, most commonly the mediastinum and retroperitoneum. While generally offering a favorable prognosis, seminomas can sometimes clinically present with misleading characteristics resulting in delayed diagnosis. In this article, we report the case of a 31-year-old male diagnosed with grade IIIC intermediate risk testicular seminoma cTxN3M1bSx, who presented initially with a palpable cervical mass.

Heterogeneous Surface CD79b Expression in Aggressive B-Cell Lymphomas Assessed by Flow Cytometry on Lymph Node Biopsies.

CD79b is a B-cell-specific antigen that is crucial to the B-cell receptor and is considered a key target for treatment in aggressive B-cell lymphomas. While immunohistochemical studies have shown widespread expression of CD79b in mature B-cell-derived lymphomas, flow cytometry allows for precise measurement and differentiation between surface and intracellular localization. In our comparative analysis, we discovered that CD79b expression percentages and mean fluorescence intensity (MFI) were lower in a group of 127 cases of aggressive B-cell lymphomas compared to a control group of benign reactive hyperplasia.

Cardiovascular and airway consideration in pediatric thoracic anterior mediastinal mass.

Mediastinal tumors are common neoplasms among the pediatric population. The symptoms may be due to the direct compression effects on the surrounding structures or "B" like symptoms of specific lymphomas or due to paraneoplastic syndrome. The cardiovascular and respiratory consequences of the compression effects along with the unique physiological nature of the pediatric airway place the anesthesiologist in a difficult situation and face a new situation called "can intubate-cannot ventilate.

Primary Oesophageal Lymphoma: A Diagnostic Dilemma.

Primary oesophageal lymphoma is an exceptionally rare cancer originating in the esophagus, distinct from more common oesophageal malignancies. Dawson's criteria has been the mainstay for diagnosis for such entities. However, recognizing primary oesophageal lymphoma is particularly challenging due to its rarity, diverse clinical presentations, and non-specific radiological and endoscopic features.

The Role of Radiotherapy in Hematologic Malignancies in Children, Adolescents, and Young Adults.

Hematologic cancers in pediatric, adolescent, and young adult populations include a diverse spectrum of malignancies. The cornerstone of treatment is multiagent chemotherapy. While radiation therapy (RT) is highly effective and played a pivotal role historically, its use has evolved.

Modern Treatment Delivery of Radiotherapy for Lymphomas and Leukemias: Making Every Gy Count.

Radiotherapy has a long history in the treatment of lymphoma and leukemia, in which late toxicity outcomes have motivated current goals to improve how radiotherapy is delivered. Contemporary advanced radiotherapy techniques, including intensity modulated radiation therapy (IMRT), proton therapy, deep inspiration breath hold (DIBH), aim to reduce the risk of cardiac morbidity and second cancers caused by radiotherapy while maintaining local control. We use treatment of mediastinal and gastric lymphomas to introduce how modern techniques are chosen for optimal dose delivery, followed by an anatomic site-specific discussion of testicular, bone, and central nervous system disease.

Follicular Lymphoma Diagnosed Successfully via Endobronchial Ultrasound-Guided Intranodal Forceps Biopsy Located in Left Lymph Node #12.

A 71-year-old man with follicular lymphoma of the right inguinal lymph node was referred to our hospital owing to mediastinal lymph node enlargement (left #12). The patient had a history of cyclosporine (CYS-A) and steroid therapy for fibrotic hypersensitivity pneumonitis. Endobronchial ultrasound-transbronchial aspiration and endobronchial ultrasound-guided intranodal forceps biopsy (EBUS-IFB) were performed under conscious sedation using midazolam and fentanyl.

A Decade of Prevalence and Clinicopathological Insights Into Classical Hodgkin Lymphoma: A Study From an Indonesian Tertiary Hospital.

Background Classical Hodgkin lymphoma (cHL) is a lymphoid malignancy originating from germinal center B cells, predominantly affecting young adults. The clinical profile, histologic subtypes, and immunohistochemical (IHC) patterns play crucial roles in diagnosing cHL and predicting prognosis. This study examines the prevalence, clinicopathological features, and IHC patterns of cHL at Dr.

Ultrasound-guided transbronchial cryobiopsy of mediastinal and hilar lesions: a multicenter pragmatic cohort study with real-world evidence.

Background: Limited data exist on the reliability, efficacy and safety of ultrasound-guided transbronchial cryobiopsy for suspicious mediastinal and hilar lesions. This study shares findings from implementing this method and compares the results with those of the standard endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

Methods: Patients undergoing diagnostic bronchoscopy for mediastinal or hilar lesions in four Swiss centres were included.

Primary mediastinal large B-cell lymphoma from the clinic to genomics: Insights for pathologists.

Primary mediastinal large B-cell lymphoma (PMBL) is a mature aggressive B-cell lymphoma that arises in the anterior mediastinum, likely originating from thymic B cells. Initially considered a subtype of diffuse large B-cell lymphoma, PMBL has since been established as a distinct clinicopathologic entity due to its unique clinical, morphologic, immunophenotypic and genetic characteristics. PMBL primarily affects young adults, especially women, and manifests as a bulky mediastinal mass that can invade adjacent structures, often causing respiratory symptoms.

The Value of a Pet Scan in Selecting the Best Lymph Node to Biopsy, and Confirming the Diagnosis of Idiopathic Multicentric Castleman Disease with HLH And EBV Viremia in a Previously Healthy Adult.

Introduction: Castleman disease (CD) is a rare lymphoproliferative disorder having a variegated clinical presentation. Diagnosis of the idiopathic HIV- and HHV8-negative multicentric CD (iMCD) subtype poses a challenge given its non-specific clinical manifestations. iMCD presents as diffuse lymphadenopathy with inflammatory manifestations, primarily driven by interleukin-6 (IL-6).

Acute Heart Failure and Complete Heart Block in a Patient with Recurrent Diffuse Large B-Cell Lymphoma: A Case Report.

BACKGROUND Cardiac tumors are divided into 2 categories: primary, originating from the heart, and metastatic, which spread to the heart from a different location, with metastatic tumors representing the vast majority. Cardiac tumors, depending on the size and location, can predispose patients to arrhythmic or hemodynamic complications. We present a patient with a history of B-cell lymphoma (DLBCL) in remission for 3 years who developed acute onset congestive heart failure and complete heart block secondary to DLBCL invasion of the myocardium.

Spontaneous Tumor Lysis Syndrome in a Thoracic Burkitt Lymphoma: A Case Report.

Burkitt lymphoma has a high proliferation rate and a significant risk of tumor lysis syndrome. Risk stratification and early identification are imperative since it is an oncological emergency. We report the case of a 20-year-old woman, without relevant past medical history, admitted to the Emergency Department with a three-week history of fatigue, chest discomfort, productive cough, night sweats, myalgia, odynophagia, and holocranial headache.

Histopathological patterns and immunophenotyping of feline lymphomas and incidence in Metropolitan Bangkok, Thailand.

Background And Aim: Feline lymphomas are categorized based on the location of tumor cells, with anatomical classifications including alimentary, mediastinal, multicentric, and extranodal forms. Accurate diagnosis and classification of feline lymphoma are paramount for enhancing treatment and prognosis. T-cell lymphomas are CD3 positive, while B-cell lymphomas exhibit positive forCD20, CD79α, and paired box 5 (PAX5).

CT radiomics and human-machine hybrid system for differentiating mediastinal lymphomas from thymic epithelial tumors.

Background: It is difficult for radiologists, especially junior radiologists with limited experience to make differential diagnoses between mediastinal lymphomas and thymic epithelial tumors (TETs) due to the overlapping imaging features. The purpose of this study was to develop and validate a CT-based clinico-radiomics model for differentiating lymphomas from TETs and to investigate whether a human-machine hybrid system can assist junior radiologists in improving their diagnostic performance.

Methods: The patients who underwent contrast-enhanced chest CT and pathologically confirmed with lymphoma or TET at two centers from January 2011 to December 2019 and from January 2017 to December 2021 were retrospectively included and split as training/validation set and external test set, respectively.

Hepatic methotrexate-associated lymphoproliferative disease: a case report and literature review.

Background: Methotrexate-associated lymphoproliferative disease (MTX-LPD) is a rare and life-threatening complication of MTX administration. MTX-LPD features more extranodal lesions than malignant lymphoma; however, the liver is an extremely rare organ that develops LPD. Herein, we present a case of hepatic MTX-LPD treated with surgical resection.

Hypercalcemia-Associated Hodgkin's Lymphoma Presenting as Normal Pressure Hydrocephalus: A Case Report.

Hodgkin's lymphoma is a malignancy of the lymphatic system that can rarely present with advanced-stage features such as spinal cord involvement and hypercalcemia. We present the case of a 63-year-old Caucasian male with advanced Hodgkin's lymphoma, presenting with hypercalcemia and symptoms resembling normal pressure hydrocephalus. The patient exhibited gait impairment, altered mental status, and urinary incontinence, forming the classic triad seen in normal pressure hydrocephalus.

A descriptive analysis of 21 patients with pulmonary amyloidosis: An observational study.

Pulmonary amyloidosis is an extremely rare disease, often detected incidentally because of its asymptomatic nature and potential to result in fatal outcomes. In this study, we aimed to present the clinical and radiological features of patients diagnosed with pulmonary amyloidosis by biopsy. This descriptive study included 21 patients with pathologically diagnosed pulmonary amyloidosis.

Exploring the complexity, treatment challenges, and outcomes in pediatric nodular lymphocyte predominant Hodgkin lymphoma: a perspective from a low-middle-income country.

Background: In children, nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) is an uncommon subtype of Hodgkin lymphoma. Given the lack of data on the best chemotherapy regimen, there is a knowledge gap in best management.

Methods: This retrospective study included all pediatric patients with NLPHL diagnosed and treated at the Children's Cancer Hospital, Egypt (2007-2018).