Figure 1: radiological and pathological characteristics of solid pseudopapillary neoplasm in case 1. A) CT scan demonstrating a well-delineated and heterogeneous enhancing mass of the pancreatic tail with peripheral calcifications; B) cut section of the tumour demonstrating a heterogeneous predominantly solid mass surrounded by a thick fibrous capsule with extensive necrosis; C) tumour proliferation surrounded by a thick fibrous capsule. The growth pattern is heterogeneous, with a combination of soild and pseudopapillary in various proportions (H & E, original magnification x 40); D) loosely cohesive tumour cells radiating around blood vessels reminiscent of pseudorosettes in ependymoma (H & E, original magnification x 200)