Myxoid Liposarcoma of the Parotid Gland.
Sameh Mezri, Chaima Zitouni, Wadii Thabet et al.
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Case in brief
An 87-year-old man presented with swelling in the left parotid region. MRI showed a tumor in the superficial parotid lobe, with no evidence of nodal or distant metastasis. Total parotidectomy and ipsilateral lymph node dissection were performed, and histology identified myxoid liposarcoma. Radiation therapy was planned but declined. At 3 years, MRI showed no recurrence, and he remained symptom-free.
What made this case unusual
The tumor was a myxoid liposarcoma arising in the parotid gland, an exceptionally uncommon location; the report notes that only 8 cases of primary parotid liposarcoma had been reported in the literature.
Diagnostic / clinical pearl
A parotid mass may rarely represent liposarcoma; histologic examination is needed to establish the diagnosis.