Skin tumor - Nonmelanocytic - Benign lymphangioendothelioma

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Skin - Nonmelanocytic tumors

Vascular tumors

Benign lymphangioendothelioma

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 16 July 2012, last major update July 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.

General
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● Also called acquired progressive lymphangioma
● Solitary lesion on trunk/limbs, adults and children

Case reports
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● 31 year old woman with slow growing reticulate cutaneous lesion on lower leg (Eur J Dermatol 2009;19:82)
● 75 year old man with ill-defined scaly, indurated, erythematous skin lesion on chest (Ann Acad Med Singapore 2011;40:106)

Gross description
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● Bruise-like lesion

Micro description
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● Anastomosing, often widely dilated vascular structures in superficial dermis; deeper in dermis, vascular spaces collapse and dissect dermal collagen in angiosarcoma-like pattern (Am J Surg Pathol 2000;24:1047)
● Lining endothelium is flat and monolayered, with no/minimal atypia, no mitoses

Differential diagnosis
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● Angiosarcoma
● Kaposi sarcoma

End of Skin - Nonmelanocytic tumors > Vascular tumors > Benign lymphangioendothelioma

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