Extramedullary plasmacytoma: rare neoplasm of parotid gland

A 45-year-old man presented with left-sided facial swelling. Initial excisional biopsy was done somewhere else without prior imaging and it came out to be pleomorphic adenoma; local imaging after biopsy showed mass over the left parotid gland with ipsilateral lymphadenopathy. On examination, there was a well-circumscribed mass with signs of left facial nerve palsy. He underwent left radical parotidectomy with ipsilateral modified radical neck dissection, and per operatively, it came out to be neoplastic lesion. Final histopathology was plasma cell neoplasm of the parotid gland. After surgery, the patient received radiation therapy to the left parotid region on account of uncertain surgical margins. It has been 3 years down the road that there is no evidence of local recurrence or transformation into multiple myeloma. Available evidence reveals that mere surgery for extramedullary plasmacytoma is not enough for local control whenever there is doubt of residual disease consider radiation therapy.

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