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Pathology

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The Endocrine System

Question
19 out of 32
 

Zellballen pattern are fond in? (AIIMS May 2014)



A Pheochromocytoma

B Paraganglioma

C Acoustic neuroma

D Transistional renal cell carcinoma

E Schwannoma

Ans. A Pheochromocytoma& B. Paraganglioma

a. Pheochromocytoma: The tumor is composed of polygonal to spindle shaped chromaffin cells or chief cells, clustered with sustentacular cells into small nests or alveoli (zellballen) by a rich vascular network. The nuclei are usually round to ovoid, with a stippled “salt & pepper” chromatin that is characteristic of most neuroendocrine tumors.

b. Zellballen pattern are seen in paraganglioma.

The Endocrine System Flashcard List

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