Fig. 8
From: Langerhans cell histiocytosis in children: the value of ultrasound in diagnosis and follow-up
Imaging in a child with SS-LCH. a-b Four hypoechoic nodules of varying sizes in the subcutaneous layer of the left middle thigh (a), and abundant blood flow signals in the nodules on CDFI examination (b). c pulsed wave Doppler (PW) examination indicated low resistance arterial type spectrum