Adipose TissueRetroperitoneal SpaceRetroperitoneal NeoplasmsRetroperitoneal FibrosisAdipose Tissue, BrownAdipose Tissue, WhiteSubcutaneous FatAdipocytesObesityIntra-Abdominal FatLiposarcomaLipolysisTesticular NeoplasmsLeptinInsulin ResistanceInsulinAdipogenesisTomography, X-Ray ComputedSubcutaneous Fat, AbdominalThermogenesisAdipocytes, White3T3-L1 CellsBody WeightAbdomenMice, ObeseFatty AcidsLipid MetabolismNeoplasms, Germ Cell and EmbryonalDietary FatsAdipokinesOmentumAdiposityAdiponectinLymph Node ExcisionTriglyceridesLipoprotein Lipase