a 40 years old female presented with a progressively increasing lump in the parotid region. On oral examinatious, the tonsil was pushed medially. Biopsy showed it to be pleomorphic adenoma. The appropriate tratment is
**Core Concept**
Pleomorphic adenoma, also known as benign mixed tumor, is the most common salivary gland tumor, predominantly affecting the parotid gland. It is a benign neoplasm composed of both epithelial and mesenchymal elements, requiring surgical excision to prevent malignant transformation and recurrence.
**Why the Correct Answer is Right**
The treatment of choice for pleomorphic adenoma is surgical excision with a margin of normal tissue to prevent recurrence. This approach is crucial to avoid malignant transformation, which can occur in a small percentage of cases. The surgical technique involves enucleation of the tumor, followed by closure of the parotid fascia to prevent fluid accumulation and promote healing.
**Why Each Wrong Option is Incorrect**
* **Option A:** Superficial parotidectomy is not the initial treatment of choice for pleomorphic adenoma, as it is a more extensive procedure that may be reserved for larger tumors or those with a higher risk of recurrence.
* **Option B:** Radiation therapy is not a standard treatment for pleomorphic adenoma, as it can cause malignant transformation and is generally reserved for malignant salivary gland tumors.
* **Option D:** Observation alone is not recommended for pleomorphic adenoma, as it can lead to malignant transformation and recurrence.
**Clinical Pearl / High-Yield Fact**
It is essential to differentiate pleomorphic adenoma from other salivary gland tumors, such as Warthin's tumor and mucoepidermoid carcinoma, which have different treatment approaches.
**Correct Answer: C. Enucleation of the tumor with closure of the parotid fascia.**