Unilateral Muscle Artifacts due to Non-compliance During Uptake Phase of [.sup.18]F-FDG PET/CT in an Oncologic Patient/Bir Onkoloji Hastasinda [.sup.18]F-FDG PET/BT Tutulum Fazi Sirasinda Uyumsuzluga Bagli Unilateral Kas Artefaktlari

A 49-year-old male patient with a prior history of poor compliance with medical appointments was referred for an [.sup.18]F-fluoro-2-deoxy-D-glucose ([.sup.18]F-FDG) positron emission tomography/computed tomography (PET/CT) for the staging of a rectal squamous cell carcinoma. The PET/CT showed unilateral diffuse skeletal muscle [.sup.18]F-FDG uptake as well as bilateral salivary gland uptake artifacts, suggestive of non-compliance with patient preparation instructions. The PET/CT nurse noted that during the [.sup.18]F-FDG uptake phase, the patient appeared intoxicated, and she found two beer cans hidden in the waste disposal beside his chair just prior to imaging. The patient only admitted to eating a cookie approximately 30 minutes after the injection of [.sup.18]F-FDG PET/CT and denied consuming alcohol during the uptake phase. We present the imaging findings of non-compliance with patient instructions during the uptake phase of [.sup.18]F-FDG. Keywords: Non-compliance, artifact, pitfall, muscle, musculoskeletal, [.sup.18]F-FDG, PET Oz Kirk dokuz yasinda doktor randevularina uyumsuz oldugu bilinen bir erkek hasta rektal skuamoz hucreli karsinom evrelemesi amaciyla [.sup.18]F-fluoro-2-deoksi-D-glukoz ([.sup.18]F-FDG) pozitron emisyon tomografisi/bilgisayarli tomografi (PET/BT) icin yonlendirilmisti. PET/BT'de unilateral diffuz iskelet kasinda [.sup.18]F-FDG tutulumu, bilateral tukruk bezi artefaktlari goruldu, bulgulari hastanin hazirlik talimatlarina uyumsuzlugu olarak degerlendirildi. PET/BT hemsiresi [.sup.18]F-FDG tutulumu sirasinda hastanin intoksike gorunumde oldugunu farketti ve goruntulemeden once hastanin iskemlesinin yanindaki cop kutusunda iki bira sisesi buldu. Hasta [.sup.18]F-FDG PET/BT enjeksiyonundan 30 dakika sonra bir kurabiye yedigini ancak alkol almadigini belirtti. Burada hazirlik talimatlarina uyumsuz bir hastada [.sup.18]F-FDG tutulum fazindaki goruntuleme bulgularini sunuyoruz. Anahtar kelimeler: Uyumsuzluk, artefakt, tuzak, kas, kas-iskelet, [.sup.18]F-FDG, PET