Difference between revisions of "Foreign material"

From Libre Pathology
Jump to navigation Jump to search
Line 26: Line 26:
*[[Necrosis|Necrotic material]].
*[[Necrosis|Necrotic material]].
*Degradable surgical sponges.<ref>URL: [http://oldfiles.bjorl.org/conteudo/acervo/print_acervo_english.asp?id=791 http://oldfiles.bjorl.org/conteudo/acervo/print_acervo_english.asp?id=791]. Accessed on: November 25, 2014.</ref>
*Degradable surgical sponges.<ref>URL: [http://oldfiles.bjorl.org/conteudo/acervo/print_acervo_english.asp?id=791 http://oldfiles.bjorl.org/conteudo/acervo/print_acervo_english.asp?id=791]. Accessed on: November 25, 2014.</ref>
*Tissue processing [[artifacts|artifact]].


==Sign out==
==Sign out==

Revision as of 18:00, 25 November 2014

Foreign material is something that is extrinsic to the body.

Foreign body redirect to this article.

Fecal material is dealt with separately in the article fecal material.

General

  • Relatively common.
  • Seen in a number of contexts.

Gross

  • Looks like it doesn't belong, e.g. food.
  • Obvious foreign bodies are gross only diagnoses.
    • Examples:
      • A dildo removed surgically from a body orifice.
      • A bullet removed in surgery - should be handled with care, photographed... probably will become evidence.

Microscopic

Features:

  • Material with out nuclei.
  • May be honeycomb-like, cartilage-like or muscle-like.
  • Often homogenous.

DDx:

Sign out

FOREIGN BODY, RIGHT LOWER LOBE, RETRIEVAL:
- MORPHOLOGICALLY CONSISTENT WITH A GREEN PEA (GROSS ONLY).
FOREIGN BODY, BRONCHUS INTERMEDIUS, RETRIEVAL:
- MUCOUS WITH NEUTROPHILS AND MACROPHAGES.
- BENIGN CALCIFICATIONS.
- FOREIGN MATERIAL (HONEYCOMB-LIKE AND CARTILAGE-LIKE WITHOUT NUCLEI) -- COMPATIBLE
  WITH FOOD.
- SCANT STRIPPED BRONCHIAL LINING EPITHELIUM WITHOUT APPARENT PATHOLOGY.
SOFT TISSUE, LEFT ARM, EXCISION:
- FOREIGN BODY, APPEARANCE COMPATIBLE WITH A PIECE OF WOOD (GROSS ONLY).
- FOREIGN BODY-REACTION (ACUTE AND CHRONIC INFLAMMATION WITH ACTIVATED FIBROBLASTS,
  HISTIOCYTES AND RARE GIANT CELLS).
- NEGATIVE FOR MALIGNANCY.

See also

References