Angiosarcoma 

  • Author: Belen Carsi, MD, PhD, FRCS; Chief Editor: Jules E Harris, MD   more...
 
Updated: Jan 13, 2012
 

Background

An angiosarcoma (AS) is an uncommon malignant neoplasms characterized by rapidly proliferating, extensively infiltrating anaplastic cells derived from blood vessels and lining irregular blood-filled spaces. Specialists apply the term angiosarcoma to a wide range of malignant endothelial vascular neoplasms that affect a variety of sites. Angiosarcomas are aggressive and tend to recur locally, spread widely, and have a high rate of lymph node and systemic metastases. The rate of tumor-related death is high. See the image below.

This is a gross specimen from a proximal humerus bThis is a gross specimen from a proximal humerus bone angiosarcoma. These tumors generally are red and hemorrhagic. Although the tumor has not extended into the adjacent soft tissues, cortical erosion is evident. The patient was treated with wide excision and reconstruction with a humeral spacer. The patient's next oncologic recheck showed multiple lesions, including a large destructive lesion in the right ilium extending to the sacroiliac joint and the right sacral ala. Also noted was an upper thoracic vertebral lesion, multiple indeterminate pulmonary nodules, extensive hepatic metastases most marked in the left lobe, and an indeterminate left adnexal mass.
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Pathophysiology

Angiosarcomas arising at different sites and in different organs have some distinct features. Angiosarcomas may occur in any region of the body but are more frequent in skin and soft tissue. Angiosarcomas also can originate in the liver, breast, spleen, bone, or heart.[1, 2, 3, 4]

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Epidemiology

Frequency

United States

  • Angiosarcomas are rare neoplasms.
  • Approximately 50% of angiosarcomas occur in the head and neck, but they account for less than 0.1% of head and neck malignancies.[5]
  • Based on analyses of Surveillance, Epidemiology, and End Results program, 4.1% of angiosarcomas were diagnosed in the 26,758 cases of soft tissue sarcoma available for analysis from 1978-2001. This is in contrast with the classic report of 1%.[6] The age-adjusted incidence rate for soft tissue sarcoma was 3.1 per 100,000 men and women per year in the 2000-2004 period.[7]

International

Worldwide incidence is also low.

Mortality/Morbidity

All angiosarcomas tend to be aggressive and are often multicentric. These tumors have a high local recurrence rate and metastasis because of their intrinsic biologic properties and because they are often misdiagnosed, leading to a poor prognosis and a high mortality rate. Malignant vascular tumors are clinically aggressive, difficult to treat, and have a reported 5-year survival rate around 20%.[8, 9] Advanced stage at presentation and lack of extensive excision are associated with higher recurrence, higher distant metastasis rates, and worsened survival.

The 5-year survival for soft tissue sarcomas is 67%.[10] The mortality for soft tissue sarcomas was around 1.6 cases per 100,000 population in 2000.

Race

African Americans in the United States are rarely affected by cutaneous angiosarcoma.[5]

Sex

  • Cutaneous angiosarcoma is more frequent in males than in females, with a male-to-female ratio of 2:1.
  • Bone and soft tissue angiosarcoma are also reported to be more frequent in males.[11]

Age

  • Soft tissue angiosarcoma has a peak incidence in the seventh decade of life, although a wide age range of patients (5-97 y) can be affected.[11]
  • Bone angiosarcoma appears most often in adults (second to seventh decades of life).
  • Cutaneous angiosarcoma of the head and neck tends to occur in the elderly population.
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Contributor Information and Disclosures
Author

Belen Carsi, MD, PhD, FRCS  Consultant, Department of Orthopedics, University College Hospital London

Disclosure: Nothing to disclose.

Coauthor(s)

Franklin Sim, MD  Chairman of Orthopedic Oncology, Professor, Department of Orthopedic Surgery, Mayo Medical School

Franklin Sim, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Orthopaedic Surgeons, American Association of Tissue Banks, American College of Sports Medicine, American Medical Association, American Orthopaedic Association, American Orthopaedic Society for Sports Medicine, International Skeletal Society, Mid-America Orthopaedic Association, Minnesota Medical Association, and Sigma Xi

Disclosure: Nothing to disclose.

Specialty Editor Board

Sanjiv S Agarwala, MD  Chief of Oncology and Hematology, St Luke's Cancer Center, St Luke's Hospital and Health Network; Professor, Temple University Shool of Medicine

Sanjiv S Agarwala, MD is a member of the following medical societies: American Association for Cancer Research, American Society for Head and Neck Surgery, American Society of Clinical Oncology, Eastern Cooperative Oncology Group, and European Society for Medical Oncology

Disclosure: BMS Honoraria Speaking and teaching; Novartis Consulting fee Consulting; Merck Consulting fee Consulting

Francisco Talavera, PharmD, PhD  Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Benjamin Movsas, MD  Vice-Chairman, Department of Radiation Oncology, Fox Chase Cancer Center

Benjamin Movsas, MD is a member of the following medical societies: American College of Radiology, American Radium Society, and American Society for Therapeutic Radiology and Oncology

Disclosure: Nothing to disclose.

Rajalaxmi McKenna, MD, FACP  Southwest Medical Consultants, SC, Department of Medicine, Good Samaritan Hospital, Advocate Health Systems

Rajalaxmi McKenna, MD, FACP is a member of the following medical societies: American Society of Clinical Oncology, American Society of Hematology, and International Society on Thrombosis and Haemostasis

Disclosure: Nothing to disclose.

Chief Editor

Jules E Harris, MD  Clinical Professor of Medicine, Section of Hematology/Oncology, University of Arizona College of Medicine, Arizona Cancer Center

Jules E Harris, MD is a member of the following medical societies: American Association for Cancer Research, American Association for the Advancement of Science, American Association of Immunologists, American Society of Hematology, and Central Society for Clinical Research

Disclosure: GlobeImmune Salary Consulting

References

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This is a classic example of angiosarcoma associated with chronic lymphedema after lymphadenectomy and radiotherapy. The patient is a 33-year-old woman who presented with a recurrent grade 2 angiosarcoma of the soft tissue after an attempt at wide excision and skin graft. Two weeks following this procedure, she developed multiple subcutaneous erythematous nodules involving the back and overlying the right scapula region, the supraclavicular fossa, the right breast, and arm. The window shows a microphotograph of the tissue obtained from the biopsy (hematoxylin and eosin stain, original magnification X160). Histologic preparation reveals neoplastic endothelial cells showing a solid pattern with occasional mitotic figures and sporadic protruding growth into the vascular lumens.
This is a gross specimen from a proximal humerus bone angiosarcoma. These tumors generally are red and hemorrhagic. Although the tumor has not extended into the adjacent soft tissues, cortical erosion is evident. The patient was treated with wide excision and reconstruction with a humeral spacer. The patient's next oncologic recheck showed multiple lesions, including a large destructive lesion in the right ilium extending to the sacroiliac joint and the right sacral ala. Also noted was an upper thoracic vertebral lesion, multiple indeterminate pulmonary nodules, extensive hepatic metastases most marked in the left lobe, and an indeterminate left adnexal mass.
This radiograph is from a 27-year-old woman who had preexisting mild pain in her left clavicle for a couple of weeks. She woke up one morning with severe pain. Radiographs showed a pathological fracture through a lytic lesion. The permanent section of the needle biopsy is shown in the window and was read as a grade 1 angiosarcoma. The cell morphology varied from epithelioid to spindle-shaped with indistinct borders. Most nuclei were large and vesicular, containing irregular large eosinophilic nucleoli and frequent mitoses. Physicians also found anastomosing vascular channels lined by pleomorphic malignant cells.
CT scan, MRI, and bone scan from a 27-year-old woman with grade 1 angiosarcoma who presented with a pathological fracture through a lytic lesion on her left clavicle. Note the expansile lytic lesion in the left clavicle accompanied by a soft tissue mass visible on the MRI. No other lesions are identifiable. Regional lymph nodes are visible by MRI, and they do not appear involved. Lungs are clear. She was treated with wide resection of the clavicle, leaving both bony ends. No further reconstruction was attempted. Eighteen months after surgery, she is free of disease and has a full range of motion in the left shoulder. The residual aesthetic deformity is minimal.
This 71-year-old man presented with a dark lesion on his scalp. The lesion was first treated with an excisional biopsy performed by his local physician; the lesion recurred quickly. He was treated with wide excision and adjuvant radiation therapy. The specimen (hematoxylin and eosin, original magnification X12.5) shows a well-differentiated cutaneous angiosarcoma composed of irregular vascular channels.
This young woman presented with multicentric angiosarcoma. The images show several bones of the right foot, the right distal femur, and the right patella affected with the process. The microphotograph of the specimen revealed a grade 2 angiosarcoma (hematoxylin and eosin, original magnification X100). Most bone tumors are solitary lesions with a very low incidence of multicentricity. Vascular tumors are an exception and may involve multiple bones. Angiosarcoma presents in this case as multiple lytic lesions in the same extremity.
This is a soft tissue angiosarcoma presenting as a rapidly growing mass in the calf. This 69-year-old woman was treated with wide resection of the mass followed by external beam radiotherapy. The full-thickness graft obtained from the ipsilateral thigh at the moment of surgery aided in the closure and prevented further wound complications during the adjuvant radiotherapy. The rapid growth of soft tissue angiosarcomas explains why they are often misdiagnosed as abscesses and tentatively treated with drainage. The drainage is sanguinous, with blood clots, and hemostasis may be challenging. To avoid this problem, fine-needle aspiration should precede any attempt at incisional or excisional biopsy of a soft tissue mass.
This 45-year-old man presented with progressive pain in his left hip. Activity-related at first, the pain turned constant. The patient described it as a dull ache and a boring sensation, with occasional stubbing episodes. The pelvic bone involvement was extensive. The patient was treated with an external hemipelvectomy. The patient survived for 1.5 years.
 
 
 
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