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[A case of retroperitoneal extramedullary plasmacytoma]
Mitsuru Saito1, Norihiko Tsuchiya, Masahiro Iinuma
1Department of Urology, Akita University School of Medicine.
Hinyokika Kiyo. Acta Urologica Japonica
|February 26, 2004
Summary
A rare case of retroperitoneal plasmacytoma presented as abdominal pain. This diagnosis was confirmed via biopsy after initial suspicion of renal cell carcinoma, and treatment with chemotherapy and radiation therapy led to significant tumor reduction.
Area of Science:
- Oncology
- Pathology
Background:
- Retroperitoneal tumors are rare and can present with vague abdominal symptoms.
- Accurate pre-operative diagnosis is crucial for effective treatment planning.
Observation:
- A 69-year-old woman presented with left abdominal dull pain.
- CT and angiography revealed a large, necrotic, hypervascular retroperitoneal tumor involving the celiac artery.
- Initial suspicion was renal cell carcinoma with extrarenal progression.
Findings:
- Histopathological examination of a biopsy specimen confirmed the tumor as a plasmacytoma.
- Combined chemotherapy and radiation therapy resulted in significant tumor size reduction.
- No tumor progression was observed one year post-treatment.
Implications:
- Plasmacytoma should be considered in the differential diagnosis of retroperitoneal masses.
- Multimodal therapy can be effective in managing retroperitoneal plasmacytomas.
- This case highlights the importance of histopathological confirmation for rare tumors.