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Gastric schwannoma. Clinical and pathologic considerations
1Department of Surgery, University of Maryland Medical System, Baltimore.
The American Surgeon
|May 1, 1993
Summary
Solitary gastric schwannomas are rare tumors, often asymptomatic but can cause bleeding. Complete surgical excision is effective, with a good prognosis, but a thorough search for other malignancies is advised.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Solitary gastric schwannomas are rare neoplasms, constituting a small fraction of both schwannomas and gastric tumors.
- These tumors typically present asymptomatically or with symptoms like upper gastrointestinal bleeding or palpable mass lesions.
Observation:
- The study presents three cases of solitary gastric schwannoma diagnosed within a single hospital over a 4.5-year period.
- Initial evaluation relies on upper endoscopy to identify these gastric lesions.
Findings:
- Pathologic diagnosis is confirmed by characteristic features: palisading nuclei, spindle-cell morphology, and hyalinized blood vessels.
- Immunohistochemical stains and electron microscopy can aid in definitive diagnosis.
- Complete surgical excision is considered adequate treatment for solitary gastric schwannomas.
Implications:
- While prognosis post-excision is favorable, the potential association with coexistent malignancies warrants a comprehensive search for other tumors.
- This highlights the importance of vigilant oncologic surveillance in patients diagnosed with gastric schwannoma.