Anomalies and Masses

Last Updated on Thu, 19 Mar 2015 | Urinary Tract

A number of lesions (both of GU and non-GU origin) may present as a palpable abdominal mass in the infant or young child and require assessment in the emergen-

Table S.2. Classification of palpable abdominal masses
juxtarenal lesions	Midline lesions	Nongenitourinary lesions
Hydro-nephrosis	CMN	Urinary retention	Gastrointestinal duplications
Dilated upper-pole duplex	Neuro-blastoma	Renal ectopia	Hepatic lesions
MCDK	Wilms tumor	Urachal cyst	Pyloric stenosis
ADPKD	RCC	Ovarian cyst	Intestinal lymphatic malformations
ARPKD	Renal vein thrombosis	Hydrome-trocolpos	Omphalomesente-ric remnants
Cystic nephroma	Adrenal hemorrhage	Teratoma	Mid-abdominal wall defects

MCDKmulticystic dysplastic kidney, ARPKD autosomal recessive polycystic kidney disease, ADPKD autosomal dominant polycystic kidney disease, CMN congenital mesoblastic neph-roma, RCC renal cell carcinoma cy department. Table 8.2 lists a broad spectrum of possible etiologies, categorized depending on their ultrasonographic appearance and location within the abdomen.

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