Point tenderness over a vertebra in patient with autoimmune disease recognize patient is on steroids. Most likely diagnosis?

Point tenderness over a vertebra in patient with autoimmune disease recognize patient is on steroids. Most likely diagnosis?

• A. Osteoporosis (compression fracture)
• B. Discitis
• C. Osteomyelitis
• D. Metastatic cancer

Answer: (A)

Steroid-induced osteoporosis leading to a vertebral compression fracture explains a focal tenderness over a vertebra in a patient with autoimmune disease on steroids. Long-term glucocorticoid therapy weakens bone by suppressing osteoblast activity, increasing osteoclast-mediated resorption, and by reducing calcium absorption while increasing calcium loss. The vertebral bodies are especially susceptible due to their trabecular-rich structure, so a minor stress or even routine activity can cause a wedge-shaped collapse that hurts directly at the involved vertebra. Infections such as discitis or osteomyelitis would typically bring fever and systemic inflammatory signs, and metastatic cancer usually presents with different pain patterns and additional symptoms. So the most likely diagnosis is a vertebral compression fracture from steroid-induced osteoporosis.

Steroid-induced osteoporosis leading to a vertebral compression fracture explains a focal tenderness over a vertebra in a patient with autoimmune disease on steroids. Long-term glucocorticoid therapy weakens bone by suppressing osteoblast activity, increasing osteoclast-mediated resorption, and by reducing calcium absorption while increasing calcium loss. The vertebral bodies are especially susceptible due to their trabecular-rich structure, so a minor stress or even routine activity can cause a wedge-shaped collapse that hurts directly at the involved vertebra. Infections such as discitis or osteomyelitis would typically bring fever and systemic inflammatory signs, and metastatic cancer usually presents with different pain patterns and additional symptoms. So the most likely diagnosis is a vertebral compression fracture from steroid-induced osteoporosis.