Commonest tumor of face in children is :
**Core Concept:** Pediatric tumors of the head and neck, with a focus on the face.
**Why the Correct Answer is Right:**
The correct answer is **B. Ewing's Sarcoma**. Ewing's Sarcoma is a type of bone and soft tissue tumor that primarily affects children and young adults. It occurs in the bones and soft tissues, and when it occurs in the face, it is often misdiagnosed as a benign tumor like a lipoma or rhabdomyosarcoma. This is due to its rarity and subtle clinical presentation.
**Why Each Wrong Option is Incorrect:**
A. **Lipoma (Option A)** is a benign fatty tumor, which is uncommon in children and does not typically involve the face.
C. **Rhabdomyosarcoma (Option C)** is a malignant tumor of skeletal muscles, which is less likely to affect the face compared to Ewing's Sarcoma.
D. **Angiocentric glioma (Option D)** is a rare brain tumor that affects children and adolescents, but it is not a tumor of the face.
**Why the Correct Answer is Right:**
Ewing's Sarcoma is the most common primary bone tumor in children and adolescents, and it can occur in various locations, including the face. The correct answer is right because Ewing's Sarcoma is a malignant tumor that originates from primitive neuroectodermal cells, and it can spread to the face via direct extension or lymphatic spread.
**Why Each Wrong Option is Incorrect:**
A. Lipoma is a benign tumor, which does not involve the face in children.
C. Rhabdomyosarcoma is a tumor of skeletal muscles, making it less likely to affect the face compared to Ewing's Sarcoma.
D. Angiocentric glioma is a brain tumor and not a tumor of the face.
**Clinical Pearl:**
Ewing's Sarcoma can present with a rapidly growing, painless mass, which may be associated with swelling or redness. Imaging studies, like MRI or CT, are crucial in diagnosing Ewing's Sarcoma.
**Core Concept:** Tumors in pediatric patients can be challenging to diagnose due to their rarity and subtle clinical presentation. It is essential to consider rare causes like Ewing's Sarcoma when dealing with uncommon pediatric tumors.