قراءة
عرض

Bone Tumours II

د. وهـــــــــــــــــــــــــــــــــبي
Giant cell tumours
= osteoclastoma
Benign but locally aggressive
Histology : abundant multinucleated giant cells
Age : 20-40 yr
Site : around the knee distal radius
Metaphyseal-epiphyseal
XR : soap – bubble appearance
Rx : curettage + tumouricidal
Hi recurrence rate
Malignant potential : 5%
Osteosarcoma
Commonest primary malignant bone tumour in child
Highly malignant
Histology : malignant cells
producing osteoid
10% metastasis at presentation
C/F
Age : 10 -25 yr
Pain : constant & more at night
Swelling
Pathologic # : rarely
XR
Metaphyseal lesion
Usually around the knee
Osteolytic & osteoblastic areas
Soft tissue invasion sun-ray appearance
Periosteal elevation Codman`s triangle
Rx
CT + surgery
5 yr survival : 60 %
Ewing sarcoma
Highly malignant
Histology : small round cells
25 % metastasis at presentation

C/F
Age 10 -25 yr
Pain
Swelling
Generalized illness & fever
Pathologic # rare
XR
Diaphyseal lesion
Tibia & fibula more common
New bone formation multiple layers onion – peel appearance
Rx
CT + surgery
5 yr survival : 60 %
Chondrosarcoma
Slowly growing
Primary or secondary to preexisting lesion
C/F
Age 40 -50 yr
XR
Lytic lesion + flecks of calcification
Rx
Surgery
Radio- & chemoresistant
5 yr survival 60 %
Objectives :
Stressing the importance of the bone tumours as being a significant source of mortality and morbidity.
Training the students to acquire the basic skills of XR interpretation in case of bone tumours.
Emphasizing the general outlines of treatment including the medical and surgical lines.
Emphasizing the significance of classifying the bone tumours and the tumour-like conditions.
Stressing the importance of the tumour-like conditions and the sequellae of misdiagnosis.



رفعت المحاضرة من قبل: Mubark Wilkins
المشاهدات: لقد قام 0 عضواً و 16 زائراً بقراءة هذه المحاضرة






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