title: Active Shingles Infection as Detected on (18)F-FDG PET/CT.
abstract: We present the case of a 56-year-old male with a history of recurrent follicular lymphoma undergoing chemotherapy with multiple (18)F-FDG PET-CT studies at an outside facility. He developed a painful erythematous, pruritic rash in the left back requiring a visit to the emergency room. He was diagnosed and treated for Varicella zoster infection. He then presented to our imaging center 2 months later for a follow up (18)F-FDG PET/CT study. Imaging demonstrated a cutaneous band of increased metabolic activity in the upper back following a dermatomal distribution. This was confirmed to be in the same area as the treated Varicella zoster eruption. A subsequent follow up (18)F-FDG PET-CT scan 4 months later to confirm tumor resolution demonstrated the abnormal band of uptake in the back had resolved. This case illustrates the significance of being aware of this entity and to distinguish it from metastasis, especially in patients with a known history of malignancy.
authors: Division of Nuclear Medicine, Department of Radiology, Saint Louis University St. Louis, MO, USA.
authors: Razi
authors: R
authors: Muzaffar
authors: Mark
authors: M
authors: Fesler
authors: Medhat M
authors: MM
authors: Osman
keywords: PET/CT; Varicella zoster; dermatome; herpes zoster; shingles
references: Am J Clin Oncol. 2012 Apr;35(2):146-50
references: 21325936
references: Ann Hematol. 2011 Sep;90(9):1119-21
references: 21210119
references: Nucl Med Commun. 2005 Aug;26(8):689-94
references: 16000986
references: Clin Nucl Med. 2006 Feb;31(2):104-5
references: 16424700
references: Br J Cancer. 1984 Jul;50(1):45-9
references: 6378236