       Document 0417
 DOCN  M9460417
 TI    Malignant vascular tumors of the liver: radiologic-pathologic
       correlation.
 DT    9404
 AU    Buetow PC; Buck JL; Ros PR; Goodman ZD; Department of Radiologic
       Pathology, Armed Forces Institute of; Pathology, Washington, DC
       20306-6000.
 SO    Radiographics. 1994 Jan;14(1):153-66; quiz 167-8. Unique Identifier :
       AIDSLINE MED/94174085
 AB    Although benign vascular tumors of the liver are extremely common
       (hemangioma is the most common), malignant vascular tumors of the liver
       are very rare. In the adult, these tumors are angiosarcoma, epithelioid
       hemangioendothelioma, and Kaposi sarcoma. All hepatic malignant vascular
       tumors share histologic characteristics, grow around and into vessels,
       and are grossly multifocal. They may be misdiagnosed histologically,
       particularly if only a biopsy sample is available. Although imaging
       findings are often non-specific, some features are suggestive or even
       characteristic of these neoplasms. Such features include previous
       exposure to thorium dioxide (Thorotrast) in cases of angiosarcoma,
       coalescence of multiple nodules into large peripheral masses in
       epithelioid hemangioendothelioma, and association between acquired
       immunodeficiency syndrome and cutaneous involvement in Kaposi sarcoma.
       Because hepatic malignant vascular tumors are often multiple, the main
       differential diagnosis is metastatic disease. There is no effective
       treatment for these tumors, and although survival time is variable, the
       prognosis is generally unfavorable.
 DE    Hemangioendothelioma, Epithelioid/DIAGNOSIS/PATHOLOGY/RADIOGRAPHY
       Hemangiosarcoma/DIAGNOSIS/PATHOLOGY/RADIOGRAPHY  Human  Liver
       Neoplasms/*DIAGNOSIS/PATHOLOGY/RADIOGRAPHY  Magnetic Resonance Imaging
       Neoplasms, Vascular Tissue/*DIAGNOSIS/PATHOLOGY/RADIOGRAPHY  Sarcoma,
       Kaposi's/DIAGNOSIS/PATHOLOGY/RADIOGRAPHY  Support, Non-U.S. Gov't
       Technetium Tc 99m Sulfur Colloid/DIAGNOSTIC USE  Tomography, X-Ray
       Computed  JOURNAL ARTICLE

       SOURCE: National Library of Medicine.  NOTICE: This material may be
       protected by Copyright Law (Title 17, U.S.Code).

