title: IV Leiomyomatosis on FDG PET/CT.
abstract: A 48-year-old woman presented with a 2-month history of right lower extremity edema. Clinical examination only showed right lower limb swelling. Routine laboratory examination revealed no abnormal results. Abdominal ultrasonography identified uterine leiomyoma and soft tissue masses. An abdominal CT demonstrated a continuous mass extending from the right internal and external iliac vein into the common iliac vein and inferior vena cava. To distinguish the mass from malignancy, the patient underwent PET/CT scan which showed increased FDG activity in the mass. However, histopathological examination proved the mass to be IV leiomyomatosis.
authors.affiliation: From the Departments of *Nuclear Medicine, and †Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Xiaona
authors.initials: X
authors.lastname: Jin
authors.forename: Fang
authors.initials: F
authors.lastname: Li
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Lu
authors.forename: Wuying
authors.initials: W
authors.lastname: Cheng
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D018231:Leiomyomatosis / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D000072078:Positron Emission Tomography Computed Tomography