Bone or cartilage mass overview: Difference between revisions
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==Epidemiology and Demographics== | ==Epidemiology and Demographics== | ||
Bone and cartilage tumors are uncommon, they represent 0.2% of all neoplasms in general population. The prevalence of bone and cartilage tumors is approximately 0.9 per 100,000 individuals. [[Bone]] and [[cartilage]] tumors have a bimodal age distribution. These tumors are more frequent in children and adolescents, and older adults. The average age at diagnosis is between 10-25 years old and 60-75 years old. Males are more commonly affected than females, with a 1.5:1 ratio.<ref name="pmid23087718">{{cite journal |vauthors=Franchi A |title=Epidemiology and classification of bone tumors |journal=Clin Cases Miner Bone Metab |volume=9 |issue=2 |pages=92–5 |year=2012 |pmid=23087718 |pmc=3476517 |doi= |url=}}</ref> Bone and cartilage tumors are slightly more common among individuals of Caucasian race.<ref name="pmid1954049">{{cite journal |vauthors=Tubiana-Hulin M |title=Incidence, prevalence and distribution of bone metastases |journal=Bone |volume=12 Suppl 1 |issue= |pages=S9–10 |year=1991 |pmid=1954049 |doi= |url=}}</ref> | Bone and cartilage tumors are uncommon, they represent 0.2% of all neoplasms in general population. The prevalence of bone and cartilage tumors is approximately 0.9 per 100,000 individuals. [[Bone]] and [[cartilage]] tumors have a bimodal age distribution. These tumors are more frequent in children and adolescents, and older adults. The average age at diagnosis is between 10-25 years old and 60-75 years old. Males are more commonly affected than females, with a 1.5:1 ratio.<ref name="pmid23087718">{{cite journal |vauthors=Franchi A |title=Epidemiology and classification of bone tumors |journal=Clin Cases Miner Bone Metab |volume=9 |issue=2 |pages=92–5 |year=2012 |pmid=23087718 |pmc=3476517 |doi= |url=}}</ref> Bone and cartilage tumors are slightly more common among individuals of Caucasian race.<ref name="pmid1954049">{{cite journal |vauthors=Tubiana-Hulin M |title=Incidence, prevalence and distribution of bone metastases |journal=Bone |volume=12 Suppl 1 |issue= |pages=S9–10 |year=1991 |pmid=1954049 |doi= |url=}}</ref> | ||
==Screening== | ==Screening== | ||
According to the the National Cancer Institute (NCI), there is insufficient evidence to recommend routine screening for bone or cartilage tumors.<ref name="US">Bone Cancer—Health Professional Version (2016) http://www.cancer.gov/types/bone/hp Accessed on February, 8th 2016</ref> | According to the the National Cancer Institute (NCI), there is insufficient evidence to recommend routine screening for bone or cartilage tumors.<ref name="US">Bone Cancer—Health Professional Version (2016) http://www.cancer.gov/types/bone/hp Accessed on February, 8th 2016</ref> | ||
Revision as of 17:12, 8 February 2016
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Bone or Cartilage Mass Microchapters |
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Bone or cartilage mass overview On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]
Overview
Tumors of the bone (also known as "Bone tumors") are generally defined as the neoplastic growth of tissue in bone. Abnormal growths found in the bone can be benign or malignant. Bone tumors may be classified as "primary tumors", which originate in bone or from bone-derived cells and tissues, and "secondary tumors" which originate in other sites and metastasize to the skeleton.[1] Carcinomas of the prostate, breasts, lungs, thyroid, and kidneys are the carcinomas that most commonly metastasize to bone. Secondary malignant bone tumors are more common than primary bone cancers. The most common symptom of bone tumors is pain, which will gradually increase over time. The pain increases with the growth of the tumor. Additional symptoms may include fatigue, fever, weight loss, anemia, and/or sudden bone fractures. In some cases, bone tumors may be asymptomatic. Bone tumors may weaken the structure of the bone, causing pathologic fractures.[2]
Classification
According to World Health Organization, bone tumors can be divided into primary and secondary. Primitive bone tumors are classified using histo-genetic criteria and malignancy anatomic-clinical criteria.
Primary Tumors
- Primary tumors of bone can be divided into benign and malignant tumors.
- Common benign bone tumors, include:
- Common malignant bone tumors, include:
Secondary Tumors
Secondary bone tumors include metastatic tumors which have spread from other organs (usually, adenocarcinomas). In general, metastatic tumors frequently involve the axial skeleton and the appendicular skeleton.
- Common secondary bone tumors, include:
Causes
Bone and cartilage tumors may be caused by precursor lesions, such as radiation injury, chronic osteomyelitis, and some genetically determined syndromes (McCune-Albright syndrome, Ollier disease, Maffucci syndrome, and Beckwith-Wiedemann syndrome).[3]
Differential Diagnosis
The table below summarizes the findings that differentiate bone tumors according to location, age, histological features, imaging features, and tumor origin.[4][5]
For more details about each specific type of bone tumor, click on the links in blue in the table below.
| Type of tumor | Age | Location | Histological features | Imaging features | Origin | Bone/Cartilage |
|---|---|---|---|---|---|---|
| Osteoma | 40-50 years | Skull bones | Matured lamellar bone | Sclerotic | Benign | Bone |
| Osteoid osteoma | 10-20 years | Short and long bone diaphysis | Osteiod outlined by osteoblasts, incorporated in a fibrous stroma | Sclerotic | Benign | Bone |
| Osteosarcoma | 11-40 years | Long bones metaphysis | Osteoid and bone formed of malignant osteoblasts and fibroblasts | Sclerotic | Malignant | Bone |
| Chondroma | 30-60 years | Small tubular bones of the hands and feet | Maturated hyaline cartilage (enchondroma/ecchondroma), preserving lobulation | Well-defined | Malignant | Cartilage |
| Chondrosarcoma | 30-60 years | Long bones metaphysis, axial skeleton | Immature cartilage, no preserving lobulation, cells arranged in groups of two or four, with atypia and mitosis | Well-defined | Malignant | Cartilage |
| Ewing sarcoma | 5-25 years | Long bones diaphysis | Small, round, undifferentiated cells, no stroma, a lot of capillary arrangement. | Ill-defined | Malignant | Bone |
| Giant cell tumor | 20-40 years | Knee | Multinucleated giant cells, fusiform cells, mononuclear cells. | Well-defined | Malignant | Bone |
| Metastases | 50-90 years | No site predilection | Frequently adenocarcinomas. Metastases can be blastic or lytic depending on the tumor origin | Sclerotic | Malignant | Bone |
Epidemiology and Demographics
Bone and cartilage tumors are uncommon, they represent 0.2% of all neoplasms in general population. The prevalence of bone and cartilage tumors is approximately 0.9 per 100,000 individuals. Bone and cartilage tumors have a bimodal age distribution. These tumors are more frequent in children and adolescents, and older adults. The average age at diagnosis is between 10-25 years old and 60-75 years old. Males are more commonly affected than females, with a 1.5:1 ratio.[6] Bone and cartilage tumors are slightly more common among individuals of Caucasian race.[7]
Screening
According to the the National Cancer Institute (NCI), there is insufficient evidence to recommend routine screening for bone or cartilage tumors.[8]
Diagnosis
Evaluation of Bone or Cartilage Mass
Pediatric Patient
Adult Patient
History and Symptoms
- Bone tumors are generally asymptomatic.
- The majority of patients may develop non-specific symptoms, such as:
- Dull pain
- Worse at nights
- Adjacent muscle soreness
Physical Examination
Physical examination findings of bone tumors, may include:
- Painless mass
- Weight loss
- Limited range of motion
- Fever
- Tenderness
- Swelling
Laboratory Studies
Imaging
Biopsy
Other Diagnostic Studies
Treatment
- The treatment of choice for bone tumors is dependent on the histological type of tumor.
- Chemotherapy and radiotherapy are effective in certain bone tumors (such as Ewing's sarcoma).
- Treatment for some bone tumors may involve surgery, such as:
- Limb amputation
- Limb-sparing surgery (often in combination with chemotherapy and radiation therapy).
- Limb sparing or limb salvage surgery
- Van-ness rotation or rotationplasty
Surgery
- The mainstray of choice for the majority of bone tumors is surgery.
- Common surgical procedures may include:
- Amputations (conservative or radical)
- Radical amputation, is called hemicorporectomy (translumbar or waist amputation) which removes the legs, the pelvis, urinary system, excretory system and the genital area (penis/testes in males and vagina/vulva in females).
Acknowledgements
The content on this page was first contributed by: Editor-In-Chief: C. Michael Gibson, M.S., M.D. [3]
References
- ↑ Henk Jan van der Woude and Robin Smithuis. Bone tumor - Systematic approach and Differential diagnosis. Radiology assistant. http://www.radiologyassistant.nl/en/p494e15cbf0d8d/bone-tumor-systematic-approach-and-differential-diagnosis.html Accessed on February 2, 2016
- ↑ "Questions and Answers about Bone Cancer" (PDF). Centers for Disease Control and Prevention. Retrieved 18 April 2012.
- ↑ Alina Maria Sisu. On the Bone Tumours: Overview, Classification, Incidence, Histopathological Issues, Behavior and Review Using Literature Data. http://www.intechopen.com/books/histopathology-reviews-and-recent-advances/on-the-bone-tumours-overview-classification-incidence-histopathological-issues-behavior-and-review Accessed on February 2, 2016
- ↑ Bone tumors. https://en.wikipedia.org/wiki/Bone_tumor Accessed on February 2, 2016
- ↑ Alina Maria Sisu. On the Bone Tumours: Overview, Classification, Incidence, Histopathological Issues, Behavior and Review Using Literature Data. http://www.intechopen.com/books/histopathology-reviews-and-recent-advances/on-the-bone-tumours-overview-classification-incidence-histopathological-issues-behavior-and-review Accessed on February 2, 2016
- ↑ Franchi A (2012). "Epidemiology and classification of bone tumors". Clin Cases Miner Bone Metab. 9 (2): 92–5. PMC 3476517. PMID 23087718.
- ↑ Tubiana-Hulin M (1991). "Incidence, prevalence and distribution of bone metastases". Bone. 12 Suppl 1: S9–10. PMID 1954049.
- ↑ Bone Cancer—Health Professional Version (2016) http://www.cancer.gov/types/bone/hp Accessed on February, 8th 2016