Pseudolipoma of the Inferior Vena Cava

Abstract

Pseudolipoma of inferior vena cava refers to a normal variant of adipose collection that is seen in typical pericaval or juxtacaval location; however, it mimics an intracaval mass lesion, especially fat-containing lesions such as lipoma. Awareness of this entity is very important to avoid misdiagnosis and unnecessary diagnostic procedures.Keywords Pseudolipoma . Inferior vena cava . CT scan Case ReportA 70-year-old man presented with complaints of abdominal pain. He reported no other complaints and had no history of trauma. Contrast-enhanced computed tomography (CT) of abdomen was performed, which revealed hepatic steatosis with normal pancreas, spleen, kidneys, and gallbladder. Transverse CT scan (Fig. 1) images showed a rounded, well-defined, fat-containing lesion, which initially appeared to lie within the intrahepatic inferior vena cava (IVC). However, sagittal reformation (Fig. 2) of the volume base images was performed, which revealed its true location to be juxtacaval and pericaval rather than intracaval. Based on complete further workup, a final diagnosis of peptic ulcer disease was made in this patient.Pericaval fat or adipose collection mimicking an intracaval mass has been described to occur in 0.5 % of adults undergoing abdominal CT [1]. When present, this localized collection of fat is characteristically seen medially or posteriorly in the lumen of IVC at or superior to the confluence of the hepatic veins and IVC [2,3]. It has been suggested that variable appearances of an extracaval fat collection at serial CT result from differences in respiratory depth or pressure [1].Ultrasound and reformatted CT images are helpful in identifying its extracaval origin and avoiding it being misdiagnosed as a lipomatous intracaval lesion. Han et al.[2] using helical CT-reformatted images have proposed that this appearance results from the association of juxtacaval fat with angulation and narrowing of the medial aspect of the immediately subdiaphragmatic IVC. This finding at CT scan has been considered benign, Fig. 1 Transverse CT image reveals as an intracaval fat-containing pseudo-lesion (arrow)

Pseudolipoma of the Inferior Vena Cava: Case Report

“…TARTIŞMA VKİ'nin intrahepatik segmenti ile ilişkili fokal yağ dokusu koleksiyonu ve ÇKBT bulguları literatürde az sayıda olup, toplam 45 hasta bildirilmiştir. [1][2][3][4][5][6] Hastaların 24'ünde KKH veya siroz zemininde hepatoselüler karsinom (HSK) varlığı mevcuttur. [1][2][3][4][5] HSK'ya bağlı olarak özellikle karaciğerde gelişen anatomik distorsiyonun, VKİ'nin diyaframdan geçişi düzeyinde yapısal deviasyon ve yağ dokunun invajinasyonu sonucu KKH ile ilişkili olduğu düşü-nülmektedir.…”

Development and validation of novel analytical methods for estimation of doxofylline in bulk and dosage forms

“…The ion-pair extractive spectrophotometry has been applied to the estimation of numerous compounds; possessing basic moieties (secondary or tertiary amino group) by using an anionic dye as a reagent and organic solvent as an extractant. Bromophenol blue being an anionic dye has been reported to form ion-pair complexes thus offering simple and rapid spectrophotometric determination of therapeutically significant pharmaceutical compounds [33][34][35][36][37][38][39][40][41][42][43].…”