Primary mediastinal large B-cell lymphoma

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Primary mediastinal large B-cell lymphoma

ORPHA:98838Disease

Also called Large cell lymphoma of the mediastinum · Med-DLBCL · Mediastinal diffuse large-cell lymphoma with sclerosis · Primary mediastinal clear cell lymphoma of B-cell type

What it is

A rare subtype of diffuse large B-cell lymphoma (DLBCL), arising from B cells of thymic origin, predominantly affecting women between the ages of 20-30, and that usually presents with a bulky and rapidly expanding anterior mediastinal mass, often with pleural and pericardial effusions, and that can invade the lungs, superior vena cava, pleura, pericardium, and chest wall, leading to manifestations of cough, dyspnea, and superior vena cava syndrome.

Key facts

Prevalence
1-9 / 100 000 (Europe)
Age of onset
Adult
Inheritance
Multigenic/multifactorial, Not applicable
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Genes

BCL6Disease-causing somatic mutation(s)
XPO1Candidate gene tested

ICD-10 codes

C85.2filed under a broader ICD-10 category

Cross-references

MEDDRA 10036710MONDO 0020323UMLS C1292754

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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