Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Due to birth trauma, perinatal stress associated with anoxia or
dehydration, and systemic disorders such as thrombocytopenia,
septicemia, and congenital syphilis. Seventy percent involves the
right adrenal while 5-10% are bilateral. Usually has spontaneous
resolution in 4-6 weeks.
Pathology:
Not applicable
Imaging Findings:
Initially on ultrasound it will appear as an anechoic suprarenal mass
with variable compression and displacement of the kidney. Rarely the
hematoma will appear as echogenic and complex and is difficult to
distinguish from neonatal neuroblastoma. Repeating the ultrasound in
a month allows the two to be distinguished as by then neonatal
hemorrhage should have either turned cystic in appearance or
resorbed.
Two weeks after hemorrhage calcification can develop on the abdominal plain film.
DDX:
References:
See References Chapter.
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