ORTHOPAEDICS - AIIMS 2003 MAY QUESTIONS AND ANSWERS

Question 125:Osteoclast has specific receptor for ?
A) Parathyroid hormone
B) Calcitonin
C) Thyroxin
D) Vitamin D3

Ans:D
Question 126:On 3 - phase 99m Tc-MDP bone scan, which of the following bone lesions will show least osteoblastic activity ?
A) Paget's disease
B) Osteoid osteoma
C) Fibrous dysplasia
D) Fibrous cortical defect

Ans:D
Question 127:Direct impact on the bone will produce a ?
A) Transverse fracture
B) Oblique fracture
C) Spiral fracture
D) Comminuted fracture

Ans:D

Question 128:All of the following are seen in rickets, except ?
A) Bow legs
B) Gunstock deformity
C) Pot belly
D) Cranio tabes

Ans:B
Question 129:A 12 year old girl complains of pain persisting in his left leg. For several weeks with a low grade fever. A radiograph reveals a mass in the diaphyseal region of the left femur with overlying cortical erosion and soft tissue extension. A biopsy of the lesion shows numerous small round cells, rich in PAS positive diastase sensitive granules. The most likely histological diagnosis is ?
A) Osteogenic sarcoma
B) Osteoblastoma
C) Ewing's sarcoma
D) Chondroblastoma

Ans:C