Skin nonmelanocytic tumor
Fibrous, fibrohistiocytic and myofibroblastic neoplasms
Inflammatory pseudotumor


Topic Completed: 1 September 2012

Minor changes: 5 October 2020

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PubMed search: cutaneous inflammatory pseudotumor

Christopher S. Hale, M.D.
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Cite this page: Hale CS. Inflammatory pseudotumor. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skintumornonmelanocyticinflammatorypseudotumor.html. Accessed October 24th, 2020.
Definition / general
  • 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
Clinical images

Images hosted on other servers:
Brown palpable indurated nodule with rough surface on upper back

Brown, palpable,
indurated nodule
with rough surface
on upper back

Gross description
  • Small, deep dermal nodule
Microscopic (histologic) description
  • Central fibrosis and hyalinized vascular center with plasma cells and lymphoid follicles
  • Usually spares epidermis
Microscopic (histologic) images

Images hosted on other servers:
Various images Various images

Various images

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