Necrotizing fasciitis

From Libre Pathology
Revision as of 04:00, 30 December 2013 by Michael (talk | contribs)
Jump to navigation Jump to search

Necrotizing fasciitis, also known as flesh-eating disease, is an uncommon non-malignant skin disease with a high mortality.

It should not to be confused with nodular fasciitis.

General

Clinical:

  • Pain - classic out-of-keep with appearance.
  • Features of sepsis - late.
  • Often nonspecific.[1]

Clinical DDx:

  • Abscess.
  • Cellulitis.

Epidemiology:

  • Classically associated with Group A streptococcus.
  • High mortality.[1]
  • Usually adults, sometimes children.

Treatment:

  • Operative debridement - emergency.[1]
  • Broad spectrum antibiotics.

Note:

Gross

Features:[3]

  • Subcutaneous emphysema.
  • Edema.
  • Erythema.
  • Bulae.
  • Skin sloughing.

Image

Microscopic

Features:

  • Necrosis of fascia - key feature.[4]
    • PMNs and necrotic debris (amorphous grey or pink material).
  • +/-Vascular thrombosis.[5]

Note:

  • Fat lobules between septae may be normal.

DDx:

Images

See also

References

  1. 1.0 1.1 1.2 Lancerotto, L.; Tocco, I.; Salmaso, R.; Vindigni, V.; Bassetto, F. (Mar 2012). "Necrotizing fasciitis: classification, diagnosis, and management.". J Trauma Acute Care Surg 72 (3): 560-6. doi:10.1097/TA.0b013e318232a6b3. PMID 22491537.
  2. Majeski, J.; Majeski, E. (Nov 1997). "Necrotizing fasciitis: improved survival with early recognition by tissue biopsy and aggressive surgical treatment.". South Med J 90 (11): 1065-8. PMID 9386043.
  3. Schuster, L.; Nuñez, DE. (Apr 2012). "Using clinical pathways to aid in the diagnosis of necrotizing soft tissue infections synthesis of evidence.". Worldviews Evid Based Nurs 9 (2): 88-99. doi:10.1111/j.1741-6787.2011.00235.x. PMID 22151905.
  4. Wong, CH.; Wang, YS. (Apr 2005). "The diagnosis of necrotizing fasciitis.". Curr Opin Infect Dis 18 (2): 101-6. PMID 15735411.
  5. Malghem, J.; Lecouvet, FE.; Omoumi, P.; Maldague, BE.; Vande Berg, BC. (Mar 2013). "Necrotizing fasciitis: contribution and limitations of diagnostic imaging.". Joint Bone Spine 80 (2): 146-54. doi:10.1016/j.jbspin.2012.08.009. PMID 23043899.