Case Report: Malignancy-mimicking imaging appearances of hepatic parasitic diseases - Report - MDSpire

Case Report: Malignancy-mimicking imaging appearances of hepatic parasitic diseases

  • By

  • Chunyuan Luo

  • Hualin Yan

  • Yang Pu

  • Yan Luo

  • May 7, 2026

  • 0 min

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Clinical Report: Imaging Characteristics of Hepatic Parasitic Infections

Overview

This case report highlights the diagnostic challenges posed by hepatic parasitic infections that can mimic malignancies on imaging modalities such as CT and ultrasound. A 38-year-old female was diagnosed with focal hepatic schistosomiasis after imaging suggested intrahepatic cholangiocarcinoma, emphasizing the importance of considering atypical infections in differential diagnoses.

Background

The differential diagnosis of focal liver lesions is a significant challenge in clinical radiology and oncology. Atypical presentations of chronic parasitic infections, such as schistosomiasis, can overlap with imaging features of malignancies, such as ill-defined borders and enhancement patterns, leading to potential misdiagnosis. Understanding these overlaps is crucial for accurate diagnosis and appropriate management.

Data Highlights

No numerical data or trial data available in the article.

Key Findings

  • A 38-year-old female presented with a left hepatic mass initially suspected to be intrahepatic cholangiocarcinoma based on imaging findings.
  • Normal serological tumor markers contradicted the initial imaging findings, raising suspicion for an atypical infection.
  • Contrast-enhanced ultrasound revealed atypical vascular patterns suggestive of hepatic paragonimiasis.
  • Histopathological analysis confirmed necrotizing granulomatous inflammation consistent with schistosomiasis.
  • The patient's history of residence in an endemic region for Schistosoma japonicum was pivotal in diagnosis.

Clinical Implications

Clinicians should consider atypical parasitic infections in the differential diagnosis of focal liver lesions, especially when imaging findings are discordant with serological results. Early recognition and accurate diagnosis, supported by serological testing, can prevent unnecessary invasive procedures and guide appropriate treatment.

Conclusion

This case underscores the importance of broadening the differential diagnosis to include atypical parasitic infections when faced with discordant imaging and serological findings. Accurate diagnosis, informed by patient history, is essential for effective management of hepatic lesions.

Related Resources & Content

  1. European Radiology, 2024 -- Key Insights on Diagnosing Hepatocellular Carcinoma: ESGAR's Practice Guidelines
  2. European Radiology, 2025 -- Imaging Characteristics of Newly Recognized Low-Grade Vascular Tumors in the Liver: Hepatic Small Vessel Neoplasm and Anastomosing Hemangioma
  3. European Radiology, 2024 -- Models for Distinguishing Benign and Malignant Liver Lesions Using Multiparametric Dual-Energy Non-Contrast CT
  4. European Radiology, 2023 -- Differentiating Subtypes of Hepatocellular Carcinoma in a Western Cohort Using Gd-EOB MRI Based on the 5th Edition of WHO Classification
  5. Diagnostic and Interventional Radiology, 2025 -- Hepatic alveolar echinococcosis: a great tumor mimicker
  6. NCBI Bookshelf, 2025 -- WHO guidelines for the treatment of patients with cystic echinococcosis
  7. MDPI, 2025 -- Magnetic Resonance Imaging Features of Hepatic Hydatid Disease: A Pictorial Review with Emphasis on Atypical Presentations and Differential Diagnosis
  8. Hepatic alveolar echinococcosis: a great tumor mimicker - Diagnostic and Interventional Radiology
  9. WHO guidelines for the treatment of patients with cystic echinococcosis - NCBI Bookshelf
  10. Magnetic Resonance Imaging Features of Hepatic Hydatid Disease: A Pictorial Review with Emphasis on Atypical Presentations and Differential Diagnosis

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