18F-FDG PET/CT Equivalent of the Hepatic Hot Spot Sign With CT Correlation

Clinical Nuclear Medicine
Michael C JundtLarry A Binkovitz

Abstract

A 43-year-old woman presented with an FDG-avid mediastinal Ewing sarcoma invading and nearly occluding the superior vena cava. Geographic increased FDG uptake in hepatic segment IVA was the only other site of nonphysiologic FDG activity. This focal activity was without an underlying mass, had atypical morphology for a hepatic metastasis, and correlated well with prior CT findings of abnormal segment IVA enhancement resulting from the recruitment of portocaval collaterals. In the correct setting, the F-FDG hepatic hot spot should be considered in the differential of a focal FDG-avid hepatic lesion in segment IVA.

References

Oct 26, 2005·Radiology·Asante M Dickson
Jan 20, 2010·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Sangita KapurDoan N Vu
Apr 21, 2016·Indian Journal of Nuclear Medicine : IJNM : the Official Journal of the Society of Nuclear Medicine, India·Daris Theerakulpisut
Jan 1, 2010·Radiology Case Reports·Dharshan VummidiSandeep Vaidya

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