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Thickened Pituitary Stalk
Joseph Junewick, MD FACR
over 7 years ago
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ARSt Case Repository

Case History

19 month old

Case Detail

Anatomy: Genitourinary
Joseph Junewick, MD FACR
Diagnostic Category: Neoplasia Benign
Created: over 6 years ago
Updated: over 6 years ago
Tags: PEDS
Modality/Study Types: CT US
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Case Images

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Reveal Findings

CT – Large multilocular left renal cystic mass extending into the renal hilum.

US – US fused with CT images confirms a multiloculated left renal mass. The septae are of uniform thickness and only minimally hyperemic on color Doppler.

Reveal Discussion

Multilocular cystic renal tumor (MCRT) or cystic nephroma is a rare, nonhereditary benign renal neoplasm that is purely cystic and is lined by an epithelium and fibrous septa that contain mature tubules. MCRT has a bimodal age and sex distribution and tends to occur in children (mostly boys) between 3 months and 4 years of age and in adults (mostly women) between 40 and 60 years of age. MCRT is usually solitary, but bilateral tumors have been described. MCRT most frequently manifests in children as a painless abdominal mass or less commonly as hematuria and urinary tract infection. The differential diagnosis of a pediatric multilocular renal mass includes cystic nephroma, cystic Wilms tumor or renal cell carcinoma, clear cell sarcoma, cystic variants of mesoblastic nephroma, and multicystic dysplastic kidney.

Reveal Diagnosis

Multilocular Cystic Renal Tumor – Cystic Nephroma

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