Intravascular papillary
endothelial hyperplasia (Masson's hemangioma) presenting as a
soft-tissue sarcoma.
Anticancer Res. 2005 Mar-Apr;25(2B):1409-12.
Intravascular
papillary endothelial hyperplasia (Masson's hemangioma) is an unusual
benign, non-neoplastic, vascular lesion characterized histologically
by papillary fronds lined by proliferating endothelium. It may appear
as a primary or pure form developing in a distended vessel, or it can
be associated with hemangiomas, pyogenic granulomas, or lymphagiomas.
Nearly all lesions are intimately associated with a thrombus in
various stages of organization. The main significance of intravascular
papillary endothelial hyperplasia is its clinical and histological
resemblance to soft-tissue sarcoma and possible misinterpretation as
such. A case of intravascular papillary endothelial hyperplasia
clinically diagnosed and treated as a low-grade angiosarcoma, in a
60-year-old man, presenting with a mass in the left thigh, is
reported.
Oral intra vascular
papillary endothelial hyperplasia in the floor of the mouth.Indian
J Dent Res. 2004 Oct-Dec;15(4): 149-51
Intravascular
papillary endothelial hyperplasia (IPEH) is an unusual vascular lesion
of proliferating endothelial cells. It is more frequently seen in the
extremities, particularly in the fingers. Oral IPEH has been reported
with the common sites being lip, tongue, and buccal mucosa. In this
article, we present a case of oral IPEH of the floor of the mouth, an
unusual location, presenting in a 9-month-old male. The histogenesis,
histologic features, and ultrastructural features are also reviewed. A
misdiagnosis of angiosarcoma can be made in a case of IPEH due to
similar histopathologic features. It is imperative to rule out this
error by an elaborate histopathologic evaluation of these lesions. |
