The utility of a touch preparation in the diagnosis of fluctuant subcutaneous fat necrosis of the newborn.
Subcutaneous fat necrosis of the newborn (SFNN) is an uncommon self-limiting panniculitis. Lesions may be fluctuant and spontaneously drain. Here we report a technique to rapidly confirm the diagnosis of SFNN when fluctuance exists via a touch preparation that demonstrates the characteristic histologic features of this condition. The material can be collected by fine needle aspirate, from draining fluctuant lesions, or if biopsy if performed.
Lund
Jared J
JJ
Department of Dermatology, Marshfield Clinic, Marshfield, Wisconsin 54449, USA.
Xia
Ling
L
Kerr
Sarah
S
Stratman
Erik J
EJ
Patten
Stella F
SF
D001707:Biopsy, Needle; D003581:Cytodiagnosis; D005218:Fat Necrosis / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D050151:Subcutaneous Fat / Q000473:pathology*