Hepatic inflammatory pseudotumor: educational value of an incorrect diagnosis at contrast-enhanced ultrasound

Benedetta Guarino, Orlando Catalano, Antonio Corvino, Fabio Corvino, Alfonso Amore, Antonella Petrillo

Research output: Contribution to journalArticlepeer-review

Abstract

Hepatic inflammatory pseudotumor (IPT) is a rare lesion that is frequently confused with malignant tumors. According to the latest guidelines on contrast-enhanced ultrasound, hypoenhancement of solid lesions in the portal and late phases corresponds to the wash-out phenomenon that characterizes malignancies. IPT may show rapid arterial enhancement and portal or late phase hypoenhancement, falsely suggesting malignancy. We report a case of a diagnostic error in which a multifocal IPT was misdiagnosed as hepatic metastases. The IPT developed after an endoscopic retrograde cholangiography was investigated by close follow-up with CEUS and contrast-enhanced CT.

Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalJournal of Medical Ultrasonics
Volume42
Issue number4
DOIs
Publication statusPublished - Oct 1 2015

Keywords

  • Contrast-enhanced sonography
  • Diagnostic error
  • Focal liver lesion
  • Hepatic inflammatory pseudotumor

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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