Anatom3DAnterior mediastinum
Mediastinum anterius · Přední mezihrudí
Lymphatic & immune
Looks like
The space behind the breastbone and in front of the heart, holding the thymus or its fat, nodes and small vessels.
What it does
Houses the thymus, which trains immune cells in childhood.
Keeping it well
Masses here are usually thymus tumours, lymphoma, germ cell tumours or goitre; any found on a scan needs a specialist.