Your guide to the Enneking system which helps your surgeon decide about treatment for cancer that starts in your bone (primary bone cancer). A System for the Surgical Staging of. Musculoskeletal Sarcoma. WILLIAM. F. ENNEKING,. M.D.,* SUZANNE. S. SPANIER,. M.D.,** AND. MARK A. GOODMAN, . Based on a combination of histologic grade (G), anatomic site (T), and presence or absence of distant metastasis (M) Grade G0 = benign G1 = low grade.

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Enneking Staging System and TGNM Staging System for Musculoskeletal Tumors

They usually are not amenable to limb salvage operations and require radical amputation or disarticulation. This parameter is accounted for stagging the AJCC staging system for soft ennejing sarcomas, but this classification lacks consideration of anatomic boundaries.

This website is an effort to educate and support people and medical personnel on orthopedic issues and musculoskeletal health. Not all neoplasms form lumps. The second most common area for it to spread to is other bones. Learn how your comment data is processed. Classification is considered safe when prognostication outlined in the classification system corresponds and correlates with outcomes in clinical practice.

Enneking surgical staging system | Radiology Reference Article |

The stage of a cancer tells the doctor how big it is and whether it has spread. Work-up is negative for metastasis, but biopsy reveals a high grade lesion. Anatomic compartments have inherent barriers to tumor spread, including fascial planes and bone structures. It is an intracompartmental cancer. It denotes abnormal proliferation of cells.

For spinal column tumors, the Enneking surgical staging system does not take into account the presence of a continuous epidural compartment, neurologic implication of sacrificing the spinal cords and roots, and need for restoring spinal stability.


Year Book Medical Publishers, Inc; ; This places the patient at greater risk of local recurrence and metastasis. Get more stuff on Musculoskeltal Health Subscribe to our Newsletter and get latest publications on Musculoskeletal Health your email inbox. We will reply by email or phone if you leave us your details.

For example, it may have spread to the lungs or other bones not directly connected to the bone where the tumour started. Please vote below and help us build the most advanced adaptive learning platform in medicine.

Well defined borders but may show cortical thinning [ABC] Growth Growth includes the processes [Modeling is also part of bone growth] that causes increase length and girth before the closure of to epiphyseal plate closure [There is gain in length after epiphyseal plate closure].

However, this classification system is applicable only to mesenchymal malignancies. Most osteosarcomas are diagnosed as this stage.

The Enneking surgical staging system is based on the natural evolution of mesenchymal tumors and thus is not applicable xtaging tumors originating in either the marrow or reticuloendothelial system. The Enneking surgical staging has been validated in two distinct situations: This classification is based on radiographic ennekong of the tumor-host margin.

About Cancer generously supported by Dangoor Education since Radiologic and pathologic analysis of solitary bone lesions. Radiol Clin North Am.

Please login to add comment. Enneking staging system descriptions The Enneking staging system is another staging system used for osteosarcoma.

Stage 2A The cancer stxging high grade and is only inside the bone. In the Enneking staging system, a Neoplasm Stagin is an abnormal mass of tissue as a result of neoplasia. As defined by the International Union Against Cancer, the objectives of cancer staging are 1 to aid in planning the course of treatment, 2 to provide insight into the prognosis, 3 to assist in evaluating the results of treatment, 4 to facilitate effective interinstitutional communication, and 5 to contribute to continuing investigation of human malignancies [ 7 ].


For benign tumors, local aggressiveness and incidence of recurrence increase with increase in surgical grade.

Growth includes the processes [Modeling is also part of bone growth] that causes increase length and girth before the closure of to epiphyseal plate closure [There is gain in length after epiphyseal plate closure]. J Am Acad Orthop Surg. Select the text below and copy the link. This means the cancer has grown out of the area compartment of the bone in which it started.

For example, a bone forms a compartment in itself. Larger lesions may be more likely to metastasize and may benefit from adjuvant chemotherapy [ 10 ]. Prognosis for soft tissue tumors depends on grade low grade: An ideal staging system should be practical, reproducible, and of prognostic significance.

Prognosis of bone cancer depends on the following variables overall stage of disease incorporates all of sfaging below presence of metastasis skip discontinous lesions within the same bone histologic grade tumor size The are two staging systems that are commonly used: Thank you for rating!

Doctors often use a simple system to stage childhood bone cancer. Enneking Staging System There are separate staging systems for benign and malignant mesenchymal tumors. History and international developments in cancer staging.