A 65-year-old male patient with anemia presents with back pain. His panoramic radiograph reveals multiple radiolucent lesions. What is the most likely diagnosis?

Explanation

The presence of anemia, back pain, and multiple radiolucent areas on imaging strongly suggests multiple myeloma, a malignant plasma cell disorder that commonly affects older adults and causes bone lesions. Osteosarcoma, giant cell granuloma, and eosinophilic granuloma have different clinical and radiographic features.