1. Perinephric extramedullary hematopoiesis
Ashish Khandelwal, Ankur Gupta, Kanika Khandelwal 
Kidney International 
Volume 81, Issue 3, (February 2012)
DOI: /ki
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2. Figure 1
Contrast-enhanced computed tomography of the abdomen showing homogenous, hypodense, non-enhancing rind-like, soft tissue masses in the perinephric spaces (arrows).
Kidney International  , DOI: ( /ki )
Copyright © 2012 International Society of Nephrology Terms and Conditions

3. Figure 2
Fine-needle aspiration biopsy of perinephric mass showing trilineage hematopoiesis with hematopoietic precursors confirming the diagnosis of extramedullary hematopoiesis (hematoxylin–eosin stain, original magnification × 200).
Kidney International  , DOI: ( /ki )
Copyright © 2012 International Society of Nephrology Terms and Conditions