The characteristics of benign spindle cell tumors are mainly exophytic growth, slow growth rate, etc.; the characteristics of malignant tumors are mainly infiltrative growth, faster, easy to metastasis and recurrence, etc..
Benign spindle cell tumors grow in an expansive or exophytic manner, with a slow growth rate, no local invasiveness, clear borders, peritoneum, no metastasis, complete resection, and not easy to recur.
Malignant tumors, on the other hand, are predominantly infiltrative, grow rapidly, are invasive, can spread to the periphery and distantly, can have vascular tumor embolisms, have unclear borders, have no envelope, and are prone to recurrence after resection.
There is a big difference between benign and malignant spindle cell tumors. If you feel unwell, it is recommended that you go to the hospital in time to get a clear diagnosis and guidance for treatment.