68 Ga-FAPI Versus 18 F-FDG PET/CT in the Evaluation of Epithelioid Hemangioendothelioma of Bone

68Ga-PSMA Versus 18F-FDG PET/CT in the Evaluation of Epithelioid Hemangioendothelioma

ABSTRACT

A 32-year-old man with epithelioid hemangioendothelioma was imaged with 68Ga-PSMA PET/CT to evaluate the potential of 177Lu-PSMA radionuclide therapy after progression findings were observed on follow-up 18F-FDG PET/CT imaging. Liver lesions showed low FDG SUVmax. The lesion-to-background ratio (TBR) was calculated as 5.1/2.9 on 18F-FDG PET/CT imaging. However, 68Ga-PSMA PET/CT showed moderate PSMA SUVmax. TBR was calculated as 4.5/1.1. In conclusion, in this case report, we demonstrated that 68Ga-PSMA with moderate TBR in epithelioid hemangioendothelioma may be promising for 177Lu-PSMA radionuclide therapy.

Cervical Lymph Node Metastasis as the Initial Presentation of Femoral Epithelioid Hemangioendothelioma Revealed by 18 F-FDG PET/CT

ABSTRACT

Femoral epithelioid hemangioendothelioma with cervical lymph node metastasis is rare. We report the FDG PET/CT findings of cervical lymph node metastasis from left femoral epithelioid hemangioendothelioma in a 50-year-old woman with painless enlargement of the left cervical lymph nodes as the initial presentation. Ultrasound and MRI revealed multiple enlarged lymph nodes in the left cervical sheath area. PET/CT showed strong radioactive uptake in the left cervical lymph nodes, and there was additional lesion with increased FDG uptake in the left femur, which was later confirmed as cervical lymph nodes metastasis from left femoral epithelioid hemangioendothelioma by pathological examination.