**Question:** Ringertz Tumour is seen commonly in:

A. Cervical region
B. Nasal cavity
C. Nasopharynx
D. Oral cavity

**Core Concept:** Ringertz Tumour, also known as Hemangiopericytoma, is a rare and slow-growing vascular tumour characterized by the proliferation of capillaries and pericytes. These tumours can occur at various sites in the body, but they are more common in specific regions.

**Why the Correct Answer is Right:**
Ringertz Tumour is seen commonly in the Cervical region. This is because these tumours are typically located in soft tissues, which are more prevalent in the neck area (cervical region). Hemangiopericytomas can also be found in other sites like nasal cavity, nasopharynx, and oral cavity.

**Why Each Wrong Option is Incorrect:**
A. Nasal cavity (Option B): Although haemangiopericytomas can occur in the nasal cavity, it is less common compared to the cervical region.
C. Nasopharynx (Option C): While hemangiopericytomas can originate in the nasopharynx, it is less common compared to the cervical region.
D. Oral cavity (Option D): Hemangiopericytomas can occur in the oral cavity, but it is less common compared to the cervical region.

**Why the Correct Answer is Right:**
Ringertz Tumour is a rare vascular neoplasm, which is more likely to occur in soft tissues. The cervical region is particularly prone to this type of tumour due to the prevalence of soft tissues in that area.

**Clinical Pearl:** Hemangiopericytomas are generally benign tumours, but they can occasionally become malignant. Surgical excision is the primary treatment choice, along with radiation therapy, depending on the tumour size, location, and extent of invasion. These tumours are rare and should be differentiated from other soft tissue tumours with similar presentations.