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[The brown bowel syndrome]

D Dudorkinová1, C Povýsil

  • 1II. patologickoanatomický ústav 1. LF UK, Praha.

Ceskoslovenska Patologie
|February 1, 1994
PubMed
Summary

Brown bowel syndrome involves yellowish-brown pigment deposition in intestinal cells. Electron microscopy confirmed this pigment is likely low oxidized lipofuscin, possibly lysosomal.

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Area of Science:

  • Gastroenterology
  • Cell Biology
  • Histopathology

Background:

  • Brown bowel syndrome is a rare condition characterized by intestinal discoloration.
  • The exact nature and cellular origin of the pigment in brown bowel syndrome remain incompletely understood.

Observation:

  • A 37-year-old female patient with brown bowel syndrome presented with yellowish-brown pigment observed in the removed intestinal tissue.
  • The pigment was identified within muscularis propria cells, with scattered occurrences in the muscularis mucosae, arterial walls, and submucosal macrophages.

Findings:

  • Histochemical analysis revealed the pigment's tinctorial characteristics were consistent with low oxidized lipofuscin.
  • Electron microscopy suggested a probable lysosomal localization for this pigment within the intestinal cells.

Implications:

  • This study identifies low oxidized lipofuscin as the likely pigment responsible for brown bowel syndrome.
  • Understanding the pigment's cellular origin and nature may offer insights into the pathogenesis of brown bowel syndrome.
  • Further research into lipofuscin accumulation in the gastrointestinal tract could elucidate mechanisms relevant to aging and cellular stress.

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