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Zellballen

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Zellballen
Nest-like clusters of uniform, round-to-polygonal chief cells surrounded by delicate richly vascular tissue and sustentacular cells, a pattern characteristic of paraganglioma
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The chief cells are characteristically packed in a Zellballen pattern, separated by a fibrovascular stroma and surrounded by the more basophilic sustentacular cells.
Laryngeal paraganglioma by Hahn, Yoav; Isaacs, Richard; Belafsky, Peter C. / Ear, Nose and Throat Journal
56,57) The presence of a nested zellballen growth pattern, including identification of sustentacular cells and a sinusoidal vascular pattern, are key to a correct diagnosis.
Pseudoneoplastic mimics of prostate and bladder carcinomas by Hameed, Omar; Humphrey, Peter A. / Archives of Pathology & Laboratory Medicine
Histopathologic examination of the resected tumour revealed a paraganglioma composed of nests of mitotically quiescent polygonal cells with pink granular cytoplasm that were arranged in a characteristic Zellballen organoid growth pattern (Fig.
Composite paraganglioma-ganglioneuroma of the urinary bladder: a rare ... by Chen, C-H.; Boag, Alexander H.; Beiko, Darren T.; Siemens, D. Robert; Froese, Alison; Isotalo, Phill / Canadian Urological Association Journal (CUAJ)
 
 
 
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