Primary Hepatic Gastrointestinal Stromal Tumor on 18 F-FDG PET/CT Images

Area of Science:

• Oncology
• Radiology
• Gastroenterology

Background:

• Primary hepatic gastrointestinal stromal tumors (GISTs) are exceptionally rare liver neoplasms.
• Their origin remains unknown, and they are associated with a poor prognosis.
• GISTs often present with nonspecific symptoms, complicating early diagnosis.

Observation:

• A case study involving a 56-year-old male patient is presented.
• The patient exhibited multiple, heterogeneous lesions within the liver.
• Positron Emission Tomography/Computed Tomography (PET/CT) revealed intense Fluorodeoxyglucose (FDG) uptake in these lesions.

Findings:

• The imaging characteristics mimicked other primary liver malignancies such as hepatocellular carcinoma or sarcoma.
• The observed multiple lesions with intense FDG uptake are characteristic findings on PET/CT.
• This presentation highlights the diagnostic challenge posed by primary hepatic GISTs.

Implications:

• Primary hepatic GISTs should be included in the differential diagnosis for patients presenting with multiple FDG-avid liver lesions.
• PET/CT imaging plays a crucial role in identifying potentially malignant liver neoplasms.
• Consideration of rare diagnoses like primary hepatic GISTs is vital for accurate patient management.