“…PPB is believed to progress along a continuum from Type I, a purely cystic lesion diagnosed at a median age of 9 months, to Type II PPB, a mixed cystic and solid lesion diagnosed at a median age of 36 months, to Type III PPB, a solid, aggressive sarcoma diagnosed at a median age of 43 months . Survival rate decreases along the continuum with overall survival (OS) of >90% for Type I PPB , 75% for Type II PPB and 58% for Type III PPB . For Type I PPB, treatment includes complete surgical excision followed by observation alone or complete surgical excision followed by intermediate intensity chemotherapy.…”