A 14 year boy presented with unilateral nasal blockade, mass in the cheek and epistaxis. What is the likely diagnosis?
**Core Concept**
The question is testing the student's knowledge of a specific condition that affects the nasal passages and surrounding structures, likely involving a vascular or neoplastic etiology.
**Why the Correct Answer is Right**
The presentation of unilateral nasal blockade, mass in the cheek, and epistaxis in a 14-year-old boy is highly suggestive of a juvenile nasopharyngeal angiofibroma (JNA). JNA is a rare, benign, but locally aggressive vascular tumor that arises from the nasopharynx, often in adolescent males. It is characterized by its rich vascular supply, which can lead to significant bleeding (epistaxis) and destruction of surrounding tissues. The mass in the cheek is likely due to the tumor's extension into the maxillary sinus or pterygopalatine fossa.
**Why Each Wrong Option is Incorrect**
**Option A:** A mucocele is a mucus-containing cyst that can occur in the paranasal sinuses, but it would not typically present with a mass in the cheek or significant epistaxis.
**Option B:** A juvenile xanthogranuloma is a rare skin condition that can affect the nasal passages, but it is not typically associated with a mass in the cheek or epistaxis.
**Option C:** A nasopharyngeal carcinoma is a malignant tumor that can occur in the nasopharynx, but it would not typically present in a 14-year-old boy, and the clinical features would be more severe.
**Clinical Pearl / High-Yield Fact**
JNA is a classic example of a "vascular tumor" that requires preoperative embolization to reduce bleeding risk during surgical excision.
**Correct Answer: C. Nasopharyngeal carcinoma.