50+ Homer Wright Rosettes Vs Perivascular Pseudorosettes Gif. (vs perivascular pseudorosette of ependydymoma). Homer wright rosettes are considered pseudo in the sense that they are not true rosettes.

The Four Main Types Of Rosettes In Pathology Pathology Student
The Four Main Types Of Rosettes In Pathology Pathology Student from i0.wp.com
What is the pathologic process that the arrow is pointing to? Neuroblastoma, homer wright rosettes are circular groupings of dark tumor cells surrounding pale neurofibrils (small blue cell tumors from neural crest note: A distinct histopathological variant of a malignant melanoma with perivascular pseudorosettes:

(e) neurocytic rosettes found in neurocytoma.

Craniopharyngioma, island of keratin (l) with cystic change. This is pseudorosette because the central e. Do not confuse with perivascular pseudorosettes/rosettes found in ependymomas. Seen in many inflammatory conditions including ms.