A 50-year-old male presented with cough and breathlessness. A positron emissoin tomography scan revealed FDG (Fluorodeoxyglucose) avid mediastinal mass. Tru-cut biopsy showed fibrotic stromal tissue with cellular infiltrate consisting of abnormal lymphoid cells and few large cells with smudged nucleus. Immunohistochemistry revealed diffuse positivity with CD20, focal positivity for CD30 and rare CD15 positive cells. Histological picture and immune profile showed overlaping features of non-Hodgkin's as well as Hodgkin's lymphoma. A diagnosis of mediastinal gray zone lymphoma was made. The patient showed a complete metabolic response to six cycles of chemotherapy.
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Hum Pathol
December 2024
American University of Beirut, Beirut, Lebanon. Electronic address:
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.
View Article and Find Full Text PDFCureus
October 2024
Respiratory Medicine, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Dr. D. Y. Patil Vidyapeeth (Deemed to be University), Pune, IND.
This case report presents a challenging diagnostic enigma, where a 29-year-old male patient presented with symptoms and signs favoring both tuberculosis (TB) and sarcoidosis. The patient's plain chest radiograph showed bilateral hilar opacities, while a contrast-enhanced computed tomography (CECT) scan revealed multiple mediastinal and hilar lymph nodes. Histopathology of a mediastinal lymph node biopsy showed necrotizing granulomatous inflammation, favoring TB.
View Article and Find Full Text PDFTurk J Haematol
October 2024
İstanbul University, İstanbul Faculty of Medicine, Department of Pathology, İstanbul, Türkiye.
Objective: Classical Hodgkin lymphoma (CHL) is a common lymphoid neoplasm with a wide range of differential diagnosis. Although it has a specific immunophenotype, aberrant expression of antigens can cause problems at its diagnosis. In this study we evaluated the usefulness of GATA3 in differential diagnosis of classical Hodgkin lymphoma.
View Article and Find Full Text PDFDiseases
October 2024
Department of Radiology, Tokyo Medical University Hospital, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
Updates Surg
October 2024
Division of Thoracic Surgery; Cardiac, Thoracic and Vascular Department, University Hospital of Pisa, Via Paradisa 2, 56100, Pisa, Italy.
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