**Core Concept**
The patient's presentation of swelling in the cheek with recurrent epistaxis is suggestive of a vascular anomaly, specifically a juvenile nasopharyngeal angiofibroma (JNA). JNA is a rare, benign tumor that arises from the nasopharyngeal mucosa and is characterized by its rich blood supply, which can lead to recurrent epistaxis and local destruction of surrounding tissues.

**Why the Correct Answer is Right**
Juvenile nasopharyngeal angiofibroma typically presents in adolescent males, and its growth is fueled by the high levels of estrogen and testosterone in this population. The tumor's rich blood supply makes it highly vascular, leading to the characteristic symptom of recurrent epistaxis. The swelling 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:** This option is not provided.
* **Option B:** While a nasopharyngeal carcinoma could present with epistaxis, it is typically seen in older adults and is not as commonly associated with swelling in the cheek.
* **Option C:** A mucocele of the maxillary sinus could present with swelling in the cheek, but it is not typically associated with recurrent epistaxis.
* **Option D:** This option is not provided.

**Clinical Pearl / High-Yield Fact**
Juvenile nasopharyngeal angiofibroma is a highly vascular tumor that can be challenging to manage due to its rich blood supply and tendency to bleed profusely. A preoperative embolization of the tumor's blood supply is often performed to reduce the risk of bleeding during surgical resection.

**Correct Answer: C. A mucocele of the maxillary sinus could present with swelling in the cheek, but it is not typically associated with recurrent epistaxis.