As Express reports with reference to doctors, swelling may indicate that the tumor has begun to put pressure on the superior vena cava (SVC). The speed of development of the syndrome of the superior vena cava can be different: with aggressive tumors, such as malignant lymphoma and small cell lung cancer, this process is quite rapid. However, in any case, there comes a time when it is impossible to do without emergency medical care.
Superior vena cava syndrome may be the first “visible” sign of cancer, which does not rule out that the disease itself is already in an advanced stage, experts warn.
The condition can also present with other symptoms, including shortness of breath, headaches, dizziness, vision problems, and visible blue veins in the chest area.
Experts have previously warned that one of the subtle symptoms of lung cancer is enlargement of the fingertips, which also become more curved.