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Published on: September 12, 2019
Hepatic inflammatory pseudotumor: A case series
Guilherme D Calomeni1, Elaine B Ataíde, Ricardo R Machado
1Rua Carlos Chagas, 420 (Setor de Transplante Hepático) - Cidade Universitária, Campinas 13083-878, SP, Brazil.
Introduction:
Inflammatory pseudotumor (IPT) is a rare lesion consisted of inflammatory and myofibroblastic cells. These lesions may be found in different organs. There are less than 300 described cases.
Presentation Of Case:
Case 1. 64-year-old cirrhotic male with a palpable epigastric mass. CT showed a lesion in liver segments 2 and 3 and left hepatic artery aneurism. Percutaneous embolization and wide spectrum antibiotics were tried, however the lesion grew. Left lateral hepatectomy was performed, and HIPT diagnosed. The patient died due to multiple organ dysfunction. Case 2. 30-year-old male with abdominal pain and fever. CT showed a hepatic hilar lesion. Surgical resection was performed after an ineffectual antibiotic trial, and HIPT was confirmed. The patient is doing well. Case 3. 73-year-old female with abdominal pain and fever. CT showed a 7cm lesion in the left liver lobe. Unrewarding cancerous screening was performed, and unsuccessful antibiotic course was tried. Resection was performed, and HIPT diagnosed. The patient is doing well. Case 4. 50-year-old cirrhotic male with abdominal pain. CT showed a segment 6 lesion and portal vein thrombosis. Considering cancer as the first hypothesis and the MELD score of 9, segmentectomy was performed. HIPT was the final diagnosis. The patient died due to abdominal sepsis.
Discussion:
HIPT is a lesion with a vast list of differential diagnosis. Antibiotics are the first line of therapy, although surgery is often necessary. Overall prognosis is good, although comorbidities may worsen it.
Conclusion:
HIPT is a rare and misleading entity.
Insights
Inflammatory pseudotumor (IPT) is a rare liver lesion. While antibiotics are a first-line treatment, surgical resection is often required for diagnosis and management, with prognosis varying based on patient factors.
Area of Science:
- Hepatology
- Surgical Pathology
- Oncology
Background:
- Inflammatory pseudotumor (IPT) is a rare neoplastic lesion characterized by inflammatory and myofibroblastic cells.
- These lesions can occur in various organs, with fewer than 300 cases documented globally.
- Hepatobiliary inflammatory pseudotumor (HIPT) specifically affects the liver, presenting diagnostic challenges.
Purpose of the Study:
- To review the clinical presentation, diagnostic challenges, and management outcomes of hepatobiliary inflammatory pseudotumor (HIPT).
- To highlight the differential diagnoses and therapeutic strategies for HIPT.
- To assess the prognostic factors influencing patient outcomes in HIPT cases.
Main Methods:
- Retrospective case series analysis of four patients diagnosed with HIPT.
- Review of clinical data including patient demographics, symptoms, imaging findings (CT scans), and treatment modalities.
- Histopathological confirmation of HIPT following surgical resection or other interventions.
Main Results:
- Four cases of HIPT are presented, involving patients with diverse clinical presentations and comorbidities (e.g., cirrhosis).
- Initial treatments, including antibiotics and embolization, were often ineffective, necessitating surgical intervention.
- Outcomes varied: two patients experienced successful recovery post-resection, while two cirrhotic patients with complications died.
Conclusions:
- HIPT is a rare and diagnostically challenging entity with a broad differential diagnosis.
- Antibiotics represent a first-line therapy, but surgical resection is frequently essential for definitive diagnosis and treatment.
- While the overall prognosis for HIPT can be favorable, comorbidities significantly impact patient outcomes.
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