(BMJ)—An 8-yo girl presented w/ a 4-wk hx of puffy eyes following a viral URI. Her mother noticed the child’s pants were too tight and her L arm was swollen. Exam: generalized edema; L arm swollen, cool, and dusky. Labs: CRP normal. UA: + protein, + blood. BUN elevated. Albumin decreased. Cholesterol elevated. What is the dx?
Nephrotic syndrome
Paget-Schroetter syndrome
Upper extremity DVT
Subclavian artery stenosis
Allergic reaction
You are correct. Nephrotic syndrome presents as a triad of proteinuria, low albumin, and peripheral edema, w/ or w/o hyperlipidemia. DVT was considered because of the coolness and dusky appearance of the L upper limb on clinical exam. Doppler U/S was negative for DVT, however, and the appearance of the limb was attributed to capillary stasis caused by limb edema. The pt went into remission w/ steroid tx after 6mo and will remain under specialist pediatric nephrology f/u for 24mo.

BMJ 2020;368:l5988
By vgreene, 4 April, 2020