inflammatorischer Pseudotumor der Leber

Inflammatorischer Pseudotumor der Leber mit ringförmiger Konfiguration in der arteriellen (links) und portalvenösen (rechts) Kontrastmittelphase in der Computertomografie.

Inflammatorischer

Pseudotumor der Leber mit ringförmiger Konfiguration in der arteriellen (links) und portalvenösen (rechts) Kontrastmittelphase in der Computertomografie.

Wikipedia • CC BY-SA 4.0

Inflammatory pseudotumor of the liver: a real imitator. Abdominal ultrasonography showed a well-defined heterogeneous mass situated in the right hepatic lobe. The texture of the mass was hypoechoic heterogeneous.

Inflammatory

pseudotumor of the liver: a real imitator. Abdominal ultrasonography showed a well-defined heterogeneous mass situated in the right hepatic lobe. The texture of the mass was hypoechoic heterogeneous.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. The texture of the mass was hypoechoic heterogeneous, without hypervascularization at colour Doppler, with discrete posterior reinforcement.

Inflammatory

pseudotumor of the liver: a real imitator. The texture of the mass was hypoechoic heterogeneous, without hypervascularization at colour Doppler, with discrete posterior reinforcement.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, measuring 11 cm greater axis, heterogeneous and hypodense in spontaneous contrast.

Inflammatory

pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, measuring 11 cm greater axis, heterogeneous and hypodense in spontaneous contrast.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

Inflammatory

pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

Inflammatory

pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

Inflammatory

pseudotumor of the liver: a real imitator. Showed a well-defined heterogeneous mass in the right hepatic lobe, enhanced moderately to the periphery to the portal and tardy phases, including septa, with a mutilocular appearance, with liver perfusion disorders.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

Inflammatory

pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

Inflammatory

pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

Inflammatory

pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

www.eurorad.org • CC by-nc-sa-4.0

Inflammatory pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

Inflammatory

pseudotumor of the liver: a real imitator. Control CT after 4 weeks of corticosteroids treatment showed a good radiological response: decrease in tumour size.

www.eurorad.org • CC by-nc-sa-4.0

Multiple hepatic inflammatory pseudotumors with elevated alpha-fetoprotein and alpha-fetoprotein lectin 3 fraction with various PET accumulations: a case report. Contrast-enhanced computed tomography (CT) revealed the presence of lesions in the patient’s liver. a A low-density mass, 24 mm in size, in segment III on plain CT. b Enhancement of the lesion in the early phase was noted. c In the late phase, washout was observed. The tumor was in contact with the left hepatic vein (LHV). d The tumor in segment VIII was not clear on plain CT. e An 8-mm tumor was also present in segment VIII of the liver showing contrast enhancement. f Washout was noted in the delayed phase

Multiple

hepatic inflammatory pseudotumors with elevated alpha-fetoprotein and alpha-fetoprotein lectin 3 fraction with various PET accumulations: a case report. Contrast-enhanced computed tomography (CT) revealed the presence of lesions in the patient’s liver. a A low-density mass, 24 mm in size, in segment III on plain CT. b Enhancement of the lesion in the early phase was noted. c In the late phase, washout was observed. The tumor was in contact with the left hepatic vein (LHV). d The tumor in segment VIII was not clear on plain CT. e An 8-mm tumor was also present in segment VIII of the liver showing contrast enhancement. f Washout was noted in the delayed phase

surgicalcasereports.springeropen.com • CC-by-4.0

Multiple hepatic inflammatory pseudotumors with elevated alpha-fetoprotein and alpha-fetoprotein lectin 3 fraction with various PET accumulations: a case report. Fluorine-18-fluorodeoxyglucose positron emission tomography (FDG-PET) findings. a The segment III lesion appeared abnormal on FDG-PET. b The segment VIII lesion did not show an abnormal uptake

Multiple

hepatic inflammatory pseudotumors with elevated alpha-fetoprotein and alpha-fetoprotein lectin 3 fraction with various PET accumulations: a case report. Fluorine-18-fluorodeoxyglucose positron emission tomography (FDG-PET) findings. a The segment III lesion appeared abnormal on FDG-PET. b The segment VIII lesion did not show an abnormal uptake

surgicalcasereports.springeropen.com • CC-by-4.0

IgG4-related disease • IgG4-related autoimmune cholangitis, pancreatitis, and pseudotumor - Ganzer Fall bei Radiopaedia

IgG4-related

disease • IgG4-related autoimmune cholangitis, pancreatitis, and pseudotumor - Ganzer Fall bei Radiopaedia

Hartung M, IgG4-related autoimmune cholangitis, pancreatitis, and pseudotumor. Case study, Radiopaedia.org (Accessed on 27 Nov 2022) https://doi.org/10.53347/rID-99511 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

siehe auch

inflammatorischer Pseudotumor
rezidivierende pyogene Cholangitis
multiseptated liver mass

Hepatic inflammatory pseudotumors (IPT), also known as xanthogranulomas or plasma cell granulomas of the liver, are rare benign hepatic lesions.

Epidemiology

Most common in young adults with males affected more than females .

Pathology

Etiology is unknown .

Macroscopic appearance

Hepatic inflammatory pseudotumor is often seen as a well-circumscribed, encapsulated inflammatory mass.

Histology

Hepatic inflammatory pseudotumor is characterized by a large population of polyclonal plasma cells with a variable amount of fibrosis, foamy histiocytes, and other chronic inflammatory cells .

Associations

recurrent pyogenic cholangitis

Subtypes

hepatic parenchymal inflammatory pseudotumor (more common)
biliary inflammatory pseudotumor

Radiographic features

Radiological findings of hepatic inflammatory pseudotumor are not characteristic and definitive diagnosis requires needle biopsy (sometimes insufficient ) or surgery .

CT

In most reported cases, they appear as hypoattenuating masses with a variable degree of hepatic enhancement .

MRI

Signal characteristics

T1: hypointense
T2: hyperintense
T1C+: heterogeneous enhancement

Siehe auch:

und weiter:

Assoziationen und Differentialdiagnosen zu inflammatorischer Pseudotumor der Leber:

inflammatorischer Pseudotumor

inflammatorischer

Pseudotumor

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