Doughnut sign of hepatic alveolar echinococcosis on FDG PET/CT: Clinical case report.

Abstract:

RATIONALE:A characteristic metabolic finding of hepatic alveolar echinococcosis (HAE) on positron emission tomography/computed tomography (PET/CT) correlates with morphologic features on CT and magnetic resonance imaging (MRI). PATIENT CONCERNS:A young man from an endemic area was admitted to our hospital due to right upper quadrant pain for 2 months. DIAGNOSIS:CT and MRI revealed a heterogeneous mass with calcification, consisting of central necrosis and peripheral solid inflammatory tissues. Accordingly, FDG PET/CT demonstrated a characteristic metabolic finding of doughnut sign. Combining the above characteristic imaging features with positive serologic findings, the patient was diagnosed as HAE. INTERVENTIONS:He then underwent extracorporeal hepatectomy and liver autotransplantation followed by medical treatment of benzimidazoles. OUTCOMES:He remained asymptomatic without evidence of recurrence at 2-year follow-up. LESSONS:The characteristic metabolic appearance of HAE on FDG PET/CT, correlated with its morphologic features of CT and MRI, may allow to make accurate diagnoses.

journal_name

Medicine (Baltimore)

journal_title

Medicine

authors

Shen G,Kou Y,Kuang A

doi

10.1097/MD.0000000000014561

subject

Has Abstract

pub_date

2019-02-01 00:00:00

pages

e14561

issue

8

eissn

0025-7974

issn

1536-5964

pii

00005792-201902220-00050

journal_volume

98

pub_type

杂志文章

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