A zellballen is a small nest of chromaffin cells or chief cells with pale eosinophilic staining. Zellballen are separated into groups by segmenting bands of fibrovascular stroma, and are surrounded by supporting sustentacular cells.[1] A zellballen pattern is diagnostic for paraganglioma or pheochromocytoma.[2]

Zellballen is German for "ball of cells".[3]

References

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  1. ^ Robbins, Stanley L.; Cotran, Ramzi S.; Kumar, Vinay (2010). Robbins and Cotran pathologic basis of disease. Philadelphia, PA: Saunders/Elsevier. p. 1135. ISBN 9781437707922. Retrieved 30 March 2017.
  2. ^ Jashnani, KusumD; Patil, RoshniD; Balsarkar, DharmeshJ (2013-10-01). "Loose cell clusters with vascular coats: Zellballen pattern of paraganglioma on cytology". Journal of Cytology. 30 (4): 278–279. doi:10.4103/0970-9371.126670. PMC 3945633. PMID 24648676.
  3. ^ Mills, Stacey E.; Greenson, Joel K.; Hornick, Jason L.; Longacre, Teri A.; Reuter, Victor E. (2015). Sternberg's diagnostic surgical pathology (Sixth ed.). Philadelphia. ISBN 9781451188752. OCLC 890850970.{{cite book}}: CS1 maint: location missing publisher (link)