8810/3 Fibrosarcoma, NOS


Definitions

Tumours of the central nervous system
ICD-O-3 topography code: C70, C71 and C72
ICD10: C70
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.



Hypopharynx, Larynx and Trachea
ICD-O-3 topography code: C13, C32, C33
ICD10: C13, C32, C33
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.



Ovary
ICD-O-3 topography code: C56
ICD10: C56
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.



Bone
ICD-O-3 topography code: C40-C41
ICD10: C40-C41
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.
Primary fibrosarcoma of bone most frequently involves the metaphyses of long bones. The tumours are composed of spindle shaped cells arranged in a fascicular or "herringbone" pattern. Histollogically, fibrosarcomas range from well differentiated tumours, which are difficult to separate from desmoplastic fibroma, to highly malignant tumours which are composed of small cells and resemble Ewing sarcoma. Well differentiated lesions produce large amounts of collagen, resulting in a firm consistency with a trabeculated cut surface and circumscribed margins. Poorly differentiated tumours have a softer, fleshy consistency, with foci of necrosis. Cortical destruction and soft tissue extension are common.
Fibrosarcomas of bone occur relatively uniformly over the second to sixth decades. The most important prognostic factor is histological tumour grade 1
 
Fletcher CDM, Unni KK, Mertens F (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Soft Tissue and Bone.
3rd Edition
IARC Press: Lyon 2002



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Nasal cavity and Sinuses
ICD-O-3 topography code: C30-C31
ICD10: C30-C31
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.



Connective, subcutaneous and other soft tissues
ICD-O-3 topography code: C49
ICD10: C49
           

Fibrosarcoma is a malignant mesenchymal tumour affecting soft tissues and bone. It is classified as adult or infantile. Infantile fibrosarcomas generally have a more favourable prognosis than those manifesting in adults.