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Skin - Nonmelanocytic tumors

Other tumors of skin

Inflammatory pseudotumor

Reviewer: Christopher Hale, M.D. (see Reviewers page)
Revised: 14 September 2012, last major update September 2012
Copyright: (c) 2001-2012, PathologyOutlines.com, Inc.

General
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● Initially described in skin in 1990 (Am J Surg Pathol 1990;14:764)
● Not a well-defined entity - controversial if it represents an inflammatory myofibroblastic tumor

Case reports
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● 26 year old Korean man (Ann Dermatol 2010;22:91)

Clinical images
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Brown palpable indurated nodule with rough surface on upper back

Gross description
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● Small, deep dermal nodule

Micro description
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● Central fibrosis and hyalinized vascular center with plasma cells and lymphoid follicles
● Usually spares epidermis

Micro images
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Various images

End of Skin - Nonmelanocytic tumors > Other tumors of skin > Inflammatory pseudotumor

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