Diagnosis
A lipoma on the sole of the foot can usually be diagnosed by a close examination of the skin. The lump can be palpated directly under the skin, feels characteristically soft or prallelastic and is easily movable. But other potentially dangerous skin changes or diseases can also resemble a lipoma, which is why a dermatologist should examine the tumor. If the diagnosis of a lipoma cannot be made conclusively by examination alone, imaging procedures such as computer tomography or magnetic resonance imaging (MRI) are used. However, a tissue sample (biopsy) may also be required to confirm the diagnosis.
Prognosis
Since a lipoma is a benign tumor, the prognosis is good. The surgical removal of a lipoma on the sole of the foot is usually uncomplicated, in rare cases bleeding or infection occurs after the operation. However, a lipoma can recur, either in the same place or in a different part of the body. These so-called recurrences are usually just as benign and harmless. The probability that a benign lipoma on the sole of the foot will develop into a malignant tumor is negligible.
Prophylaxis
According to the current state of science, the cause of lipoma formation is not yet fully understood. However, measures such as a change in diet or weight loss do not seem to have any influence on the development of a lipoma. For this reason, no recommendation for effective lipoma prophylaxis can yet be given. A healthy and balanced lifestyle is generally recommended; regular exercise promotes health and blood circulation.