musckuloskeletal mcqs

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Musckuloskeletal MCQs Musckuloskeletal MCQs

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Musckuloskeletal MCQs. Aneurysmal Bone Cyst (ABC) . Aneurysmal Bone Cyst (ABC) . Respect epiphyseal plate. soap-bubble. Thin internal trabeculations. Almost invesible cortex. Expansile lesion. No periosteal reaction except in case of fracture. Doughnut sign in scintigraphy. - PowerPoint PPT Presentation

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Page 1: Musckuloskeletal MCQs

Musckuloskeletal MCQsMusckuloskeletal MCQs

Page 2: Musckuloskeletal MCQs

Aneurysmal Bone Cyst (ABC) Aneurysmal Bone Cyst (ABC)

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Aneurysmal Bone Cyst (ABC) Aneurysmal Bone Cyst (ABC)

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Expansile lesion

Respect epiphyseal plate

Almost invesible cortex

Thin internal trabeculations

soap-bubble

No periosteal reaction except in case of fracture

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Doughnut sign in scintigraphy

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Aneurysmal Bone cyst :Aneurysmal Bone cyst :

a.Occur secondary to fibrous dysplasia b.Can present with scoliosisc.May contain fluid-fluid level at MRId.Contain calcified matrixe.Doughnut sign at scintigraphy is

pathognomonic

(√ )

(√ )

(X )

(X )

(√ )

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Multiple Myeloma

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Mulyiple osteolytic Punched-out lesion

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Absence of perilesional sclerosis

Mulyiple osteolytic Punched-out lesion

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Complicated by pathological fracture

Associated with osteopenia

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PET PET-CT coronal view

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Regarding Multiple Myeloma :Regarding Multiple Myeloma :

a. It is the commonest 1ry neoplasm of boneb. Generalised osteopenia is a recognised

appearancec. Scintigraphy over-estimates disaese extentd. Lesions becomes scleotic following

chemotherapye. Vertebral pedicle destruction is an early

event

(√ )

(√ ) also following radiotherapy

(X ) under estimates

(X )

(√ ) in 15 %

(Ref: Grainger and Allison pp1913-1915,Daenhartppp121-122, Chapman 2003pp575-576)

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Rheumatoid arthritis :Rheumatoid arthritis :

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Articular erosion

Periarticular osteopeniaNarrowing of the joint spaces

Soft tissue swelling

Joint deformity

Joint instability due to ligament rupture

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Narrowing of the glenohumoral joint

Marginal erosion

High ridding of the humerus

Lateral erosion of the clavicle

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Erosion of the MTP Lateral deviation of toes , Hammer toes

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Erosion of Odontoid process

Erosion of facet joints

Pannus proliferation directly compresses the spinal cord.

ligamentous destruction can result in atlantoaxial impaction

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Erosion of the lateral 3Erosion of the lateral 3rdrd of the of the clavicle is seen in the following:clavicle is seen in the following:

a.Rheumatoid arthritisb.Ankylosing spondylitisc.Langerhans cell histiocytosisd.Hypoparathyroidisme.Multiple myeloma

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(X )

(√ )

(X ) Hyperparathyroidism

(X )

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Concerning Malignant Bone Lesions

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Concerning Malignant bone lesion:Concerning Malignant bone lesion:

a. Chordoma is most common in the thoracolumbar spine

b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease

c. Adamantinoma occursin the tibia in over 90% of cases

d. Angiosarcoma has a soap bubble appearance at radiography

e. Chondroblastoma are typically found in the diaphysis

(X ) 90% in basisphenoid and sacrum

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Sacral Chordoma

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Basisphenoid Chordoma

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Concerning Malignant bone lesion:Concerning Malignant bone lesion:

a. Chordoma os most common in the thoracolumbar spine

b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease

c. Adamantinoma occurs in the tibia in over 90% of cases

d. Angiosarcoma has a soap bubble appearance at radiography

e. Chondroblastoma are typically found in the diaphysis

(√ )

(X ) 90% in basisphenoid and sacrum

(√ )

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Adamantinoma

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Concerning Malignant bone lesion:Concerning Malignant bone lesion:

a. Chordoma os most common in the thoracolumbar spine

b. Fibrosarcoma is the commonest tumour 2ry to paget’s disease

c. Adamantinoma occursin the tibia in over 90% of cases

d. Angiosarcoma has a soap bubble appearance at radiography

e. Chondroblastoma are typically found in the diaphysis

(√ )

(√ )

(√)

(X ) 90% in basisphenoid and sacrum

(X ) they are epiphyseal lesions

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Chondroblastoma

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Thank you