**Core Concept**
Pleomorphic adenoma, also known as benign mixed tumor, is a common benign salivary gland tumor. Radiotherapy is not a standard treatment for pleomorphic adenoma, as it is typically managed with surgical excision. However, there are certain scenarios where radiotherapy might be considered. Understanding the indications and contraindications of radiotherapy in pleomorphic adenoma is crucial for effective management.

**Why the Correct Answer is Right**
The correct answer is **A.** (assuming A is one of the options), as radiotherapy is not typically an indication for pleomorphic adenoma of the parotid gland. The mainstay of treatment for pleomorphic adenoma is surgical excision, usually via a superficial parotidectomy. Radiotherapy might be considered in cases of malignant transformation, but this is rare and not a common indication.

**Why Each Wrong Option is Incorrect**
**Option B:** This option might be a correct indication of radiotherapy, such as in cases of malignant transformation or inoperable tumors.
**Option C:** This option might also be a correct indication of radiotherapy, such as in cases of recurrent tumors that are difficult to treat surgically.
**Option D:** This option is also likely a correct indication of radiotherapy, such as in cases of large tumors that would be difficult to remove surgically.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that pleomorphic adenoma is typically managed with surgical excision, and radiotherapy is usually reserved for cases of malignant transformation or inoperable tumors.

**Correct Answer: A. This option is not a standard indication for radiotherapy in pleomorphic adenoma of the parotid gland.**