Paget's Disease: Key Concepts and Symptoms

Paget's disease of bone is a disorder characterized by excessive bone remodeling, leading to deformities and fractures. The disease involves three phases: lytic, mixed, and sclerotic, each affecting bone structure differently. Causes include genetic mutations and infections. Symptoms may include nerve compression, hearing and vision loss, and bone cancer. Diagnosis involves checking alkaline phosphatase levels and imaging. Treatment includes medications and surgery. The disease is often asymptomatic but can lead to significant complications over time.

What is a key characteristic of Paget's disease of bone?

• Decreased bone remodeling

• Excessive bone resorption and growth

• Lack of bone deformities

• Reduced risk of fractures

Which cells are responsible for bone resorption?

• Fibroblasts

• Chondrocytes

• Osteoblasts

• Osteoclasts

What triggers the activation of osteoclasts?

• Osteoprotegerin

• Vitamin D

• Rank L binding to rank receptors

• Calcium deficiency

Which genetic mutation is linked to Paget's disease?

• SQSTM1 mutation

• BRCA1 mutation

• APOE mutation

• CFTR mutation

What occurs during the sclerotic phase of Paget's disease?

• Bone density decreases

• New bone formation exceeds resorption

• Bone resorption exceeds formation

• Osteoclast activity increases

What facial deformity can result from Paget's disease?

• Micrognathia

• Cleft palate

• Leontiasis

• Prognathism

Which symptom is associated with Paget's disease affecting the skull?

• Hearing loss

• Increased hair growth

• Reduced sense of smell

• Improved vision

What is a common diagnostic marker for Paget's disease?

• Decreased phosphorus levels

• High vitamin D levels

• Elevated alkaline phosphatase

• Low calcium levels

Which medication is used to slow down bone loss in Paget's disease?

• Antihistamines

• Antivirals

• Antibiotics

• Bisphosphonates

What is a potential surgical intervention for Paget's disease?

• Decompression surgery

• Bone marrow transplant

• Liver transplant

• Joint replacement