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Destructive granuloma derived from a liver cyst: a case report
Yujo Kawashita1, Yukio Kamohara, Junichiro Furui
1Department of Transplantation and Digestive Surgery, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan. yujo-ngs@umin.ac.jp
World Journal of Gastroenterology
|April 6, 2006
Summary
A rare liver cyst caused aggressive thoraco-abdominal wall infiltration. Surgery revealed destructive granuloma, not malignancy, resolving the patient's symptoms.
Area of Science:
- Hepatology
- Surgical Pathology
- Radiology
Background:
- Idiopathic liver cystic masses can present diagnostic challenges.
- Aggressive infiltration into adjacent structures is uncommon for benign liver cysts.
Observation:
- A 74-year-old woman presented with a large right hepatic lobe cyst.
- Seven years post-diagnosis, the cyst enlarged, infiltrating the thoraco-abdominal wall.
Findings:
- Computed tomography (CT) scans initially suggested a simple cyst.
- Surgical pathology revealed destructive granuloma with epithelioid cells and bone destruction, excluding malignancy.
- Histological and molecular analyses did not identify specific pathogens.
Implications:
- Long-standing hepatic cysts can rarely present as destructive granulomas with local invasion.
- This case highlights the importance of considering inflammatory processes in cystic liver lesions with aggressive features.
- Definitive surgical resection was curative, with no signs of recurrence.
