Diagnostic and behavioural parameters differentiating proliferative muscolo-fascial low grade lesions. Case reports.

Pseudosarcomatous nodular fasciitis and desmoid tumors can be very similar at physical examination. Although their behaviours and cytologic aspects are very different, they both undergo the same surgical approach. Nevertheless, only desmoid tumors - because of their high rate of local recurrence - require a strict follow-up and further therapies when radicality of primary surgery could not be likely performed.