2551. The most important histological feature of muscle dystrophy is ________.

A. Muscle fibres replaced by fat
B. Splitting of muscles fibres
C. Necrosis of muscle fibres with PPMN cell infiltration
D. Disappearance of muscle fibres replaced by fat/fibrous tissue. *

2552. In muscle atrophy of disuse, the first change noted is __________.

A. Fatty infiltration
B. Disappearance of the smallest muscle fibres
C. Loss of muscle volume due to shrinkage of sarcoplasm *
D. Oedema of Muscle fibres

2553. Acute toxic myopathy may follow infection with ________.

A. Polio virus
B. Echo virus
C. Coxasackle virus *
D. All of the above

2554. The joint most likely to have recurrent dislocation is _________.

A. Ankle
B. Knee *
C. Shoulder
D. Patella

2555. Sun ray appearance of osteosarcoma is because of ________.

A. Periosteal reaction
B. Osteonecrosis
C. Calcification along vessels *
D. None of the above

2556. Origin of osteogenic sarcoma may be related to all except _______.

A. Radiation
B. Chronic osteomyelitis *
C. Paget’s disease
D. Sarcoma Virus

2557. Rapidly increasing knee swelling with snow storm appearance in X-ray is suggestive of _________.

A. Osteogenic sarcoma
B. Osteoclastoma
C. Malignant synovioma *
D. None of the above

2558. Osteoblastic secondaries arise most commonly from carcinoma of _______.

A. Prostate *
B. Tibia
C. Radius
D. Ribs

2559. The most common site of Ewing sarcoma is ____________.

A. Femur
B. Tibia *
C. Radius
D. Ribs

2560. The characteristic X-Ray feature of Ewing sarcoma is ___________.

A. Sunburst appearance
B. Prominent card man’s triangle
C. Onion layering *
D. Osteosclerosis