Foreign material

Foreign material is something that is extrinsic to the body.

General

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

Gross

• Looks like it doesn't belong, e.g. food.

Microscopic

Features:

• Honeycomb-like or cartilage-like or muscle-like without nuclei.

DDx:

• Fecal material - if in colon/rectum.
• Necrotic material.

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.

See also

• Fecal matter.
• Aspiration pneumonia.