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Updated: Jul 7, 2026
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Robot-assisted Partial Splenectomy
Published on: January 2, 2026
[A case of splenic inflammatory pseudotumor]
Ryo Metoki1, Toshiya Horibe, Shigeki Ichimura
1Department of Gastroenterology and Hepatology, Tokyo Medical University.
Summary
A splenic mass in a 74-year-old woman was diagnosed as an inflammatory pseudotumor after a splenectomy. This condition, characterized by lymphoid cells and fibroblasts, should be considered in splenic mass differential diagnoses.
Area of Science:
- Pathology
- Radiology
- Oncology
Background:
- Splenic masses require accurate diagnosis for appropriate management.
- Differentiating benign from malignant splenic lesions is crucial.
Observation:
- A 74-year-old woman presented with an abdominal splenic mass detected via ultrasound.
- Despite extensive preoperative investigations, a definitive diagnosis remained elusive.
- Splenectomy was performed for diagnosis and treatment.
Findings:
- Histopathological examination revealed infiltration by polyclonal lymphoid cells.
- Proliferating spindle-shaped fibroblasts without atypia were noted.
- The splenic mass was diagnosed as an inflammatory pseudotumor.
Implications:
- Inflammatory pseudotumor is a potential diagnosis for splenic masses.
- Imaging and clinical findings can aid in diagnosing inflammatory pseudotumor.
- Considering this diagnosis can prevent unnecessary aggressive treatments for splenic lesions.
