Skin inflammatory (nontumor)
Dermal collagen and elastic tissue alterations, and cutaneous deposits
Elastosis perforans serpiginosum

Author: Mowafak Hamodat, M.D., M.Sc. (see Authors page)

Revised: 17 October 2018, last major update July 2011

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PubMed Search: Elastosis perforans serpiginosum

Cite this page: Hamodat, M. Elastosis perforans serpiginosum. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skinnontumorelastosisperforans.html. Accessed October 20th, 2018.
Definition / general
Epidemiology
  • Either idiopathic, drug induced (D-penicillamine), or associated with other inherited disorders (Down syndrome, Ehlers-Danlos syndrome, osteogenesis imperfecta, Marfan syndrome, Rothmund-Thomson syndrome)
Diagrams / tables

Images hosted on other servers:

Diagram

Microscopic (histologic) description
  • Clumps of coarse elastic fibers penetrate epidermis and cause focal epidermal hyperplasia
  • Marked increase in elastic tissue in both reticular and papillary dermis
  • The vertically oriented fibers of the papillary dermis are thicker than normal
  • The center of the lesion shows characteristic transepithelial, parafollicular or transfollicular fibers that are straight, wavy or screw-like in configuration
  • The perforating canal contains degenerated epithelial cells, inflammatory debris and numerous elastic fibers
  • The epithelium on either side of the perforating canal is acanthotic, often with pseudoepitheliomatous hyperplasia
  • Foreign body giant cell reaction is common in superficial dermis; occasionally elastophagocytosis is present
Microscopic (histologic) images

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Various images

Positive stains
  • Elastic stains (highlights elastic fibers)
Differential diagnosis
  • Kyrle disease: transepidermal degeneration of parakeratin and inflammatory debris
  • Perforating folliculitis: transepidermal elimination of degenerative connective tissue
  • Reactive perforating collagenosis: transepidermal elimination of collagen