The disorder in which bones are porous and thin but bone composition is normal is
a. Osteomalacia
b. Osteoporosis
c. Paget's disease

검증된 단계별 안내

Step 1: Understand the key characteristics of each disorder mentioned in the problem to differentiate them based on bone structure and composition.

Step 2: Osteomalacia is a condition where bones become soft due to defective bone mineralization, often caused by vitamin D deficiency, leading to abnormal bone composition.

Step 3: Osteoporosis is characterized by porous and thin bones, but the bone composition remains normal; the issue is a decrease in bone mass and density, not the quality of the bone material itself.

Step 4: Paget's disease involves abnormal bone remodeling, leading to enlarged and misshapen bones, which is different from simply having porous and thin bones with normal composition.

Step 5: Based on these distinctions, identify the disorder that matches the description of porous and thin bones with normal bone composition, which is the hallmark of osteoporosis.

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주요 개념

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Osteoporosis

Osteoporosis is a bone disorder characterized by porous and thin bones due to decreased bone density, while the bone composition remains normal. It leads to fragile bones and increased fracture risk, commonly affecting older adults, especially postmenopausal women.

Osteomalacia

Osteomalacia involves the softening of bones caused by defective bone mineralization, often due to vitamin D deficiency. Unlike osteoporosis, the bone matrix is abnormal, leading to weak and deformed bones rather than just reduced density.

Paget's Disease of Bone

Paget's disease is a chronic disorder where bone remodeling is disrupted, causing enlarged and misshapen bones. It involves excessive bone resorption followed by disorganized bone formation, differing from osteoporosis and osteomalacia in pathology and bone structure.

The disorder in which bones are porous and thin but bone composition is normal isa. Osteomalaciab. Osteoporosisc. Paget's disease