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Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
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Plexiform Fibromyxoma: A Review and Discussion of the Differential Diagnosis of Gastrointestinal Mesenchymal Tumors.

Julianne Szczepanski1, Maria Westerhoff1, Shula Schechter1

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Summary
This summary is machine-generated.

Plexiform fibromyxomas are rare gastrointestinal tumors that can be mistaken for other mesenchymal tumors. Diagnosis relies on morphology, immunohistochemistry, and ruling out other conditions.

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Area of Science:

  • Gastrointestinal Pathology
  • Surgical Pathology
  • Oncology

Background:

  • Plexiform fibromyxomas are uncommon gastrointestinal neoplasms.
  • These tumors share histologic and molecular features with other gastrointestinal mesenchymal tumors.
  • They present a diagnostic challenge for surgical pathologists.

Purpose of the Study:

  • To review the clinicopathologic, morphologic, immunohistochemical, and molecular features of plexiform fibromyxomas.
  • To discuss key features aiding in the differential diagnosis of these rare tumors.

Main Methods:

  • Literature analysis of PubMed.
  • Review of institutional and consultation clinical practice experience.

Main Results:

  • Plexiform fibromyxoma is a rare, benign gastrointestinal mesenchymal tumor.
  • Diagnosis is primarily based on morphology and immunohistochemistry.
  • Exclusion of other gastrointestinal mesenchymal tumors is crucial for diagnosis.

Conclusions:

  • Plexiform fibromyxoma diagnosis requires careful evaluation of morphology and immunohistochemistry.
  • Differential diagnosis should exclude other gastrointestinal mesenchymal tumors.
  • Accurate diagnosis is essential for appropriate patient management.