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Thursday 23 August 2007

zellballen architecture ; zellballen pattern

Definition : The predominant architectural feature is arrangement of the small cells in nests and lobules, or zellballen, which is a distinct characteristic of paraganglioma and pheochromocytoma.


- Zellballen pattern: polygonal/spindle cells arranged in nests surrounded by sustentacular cells

See also

- tumoral appearance
- tumoral pattern / architectural pattern / tumoral architecture