Zellballen pattern on histopathology is observed in?-: (A) GIST, (B) Astrocytorna, (C) Carotid body tumor, (D) Retinoblastoma
Answer is C. Zellballen pattern on histopathology is observed in Paraganglioma or Carotid body tumors. Zellenbalen- composed to nests of polygonal chief cells. Robbins basic pathology. 7th edition. page no. 789.