Sandbox:patho

• Neuroblastoma may be grouped according to the microscopic background stroma into a:

• Schwannian stroma rich group
• Schwannian stroma poor group

Neuroblastoma

Schwannian stroma rich group

Schwannian stroma poor group

Undifferentiated neuroblastoma Poorly differentiated neuroblastoma Differentiating neuroblastoma

Nodular ganglioneuroblastoma Intermixed ganglioneuroblastoma Maturing ganglioneuroma Mature ganglioneuroma