Rosette shaped arrangement of cells is seen in
**Core Concept**
The rosette-shaped arrangement of cells is a characteristic histopathological feature seen in certain conditions. This pattern is typically observed in neuroepithelial cells and is associated with a specific type of tumor. The rosette formation is a result of the radial arrangement of cells around a central axis, resembling a flower or a rosette.
**Why the Correct Answer is Right**
The correct answer is associated with medulloblastoma, a type of primitive neuroectodermal tumor (PNET) that primarily affects children. In medulloblastoma, the rosette formation is a result of the radial arrangement of neuroepithelial cells around a central lumen. This histopathological feature is a key diagnostic criterion for medulloblastoma. The rosettes are typically formed by Homer Wright rosettes, which are composed of small, undifferentiated cells that are arranged around a central axis.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not describe a condition associated with rosette-shaped cell arrangement.
**Option B:** This option is incorrect as it is not a specific condition characterized by rosette formation in histopathology.
**Option C:** This option is incorrect as it does not accurately describe the histopathological feature of rosette-shaped cell arrangement in neuroepithelial tumors.
**Clinical Pearl / High-Yield Fact**
Medulloblastoma is a highly malignant tumor that primarily affects children and is characterized by a high degree of cellular differentiation. The rosette formation is a key diagnostic criterion for medulloblastoma, and it is essential to recognize this feature in histopathological examination to make an accurate diagnosis.
**Correct Answer:** D. Medulloblastoma