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Figure 2: 2D and 3D Ultrasound (a) 2D panoramic grey scale transverse view; (b) 3D reconstruction longitudinal view; 5-8 seconds sweep) demonstrated a hypodermal structure with lobulated margins and heterogeneous echogenicity (8.9 cm transverse x 1.6 cm depth axes). Notice the anechoic areas (o) within the mass that corresponded to the most liquefied parts of the bleeding. There is a mixed echogenicity (anechoichypoechoic) serpiginous tract (arrow) in the vicinity of the structure. d: Dermis, h: Hypodermis, b: Bony margin of the skull

Figure 2: 2D and 3D Ultrasound (a) 2D panoramic grey scale transverse view; (b) 3D reconstruction longitudinal view; 5-8 seconds sweep) demonstrated a hypodermal structure with lobulated margins and heterogeneous echogenicity (8.9 cm transverse x 1.6 cm depth axes). Notice the anechoic areas (o) within the mass that corresponded to the most liquefied parts of the bleeding. There is a mixed echogenicity (anechoichypoechoic) serpiginous tract (arrow) in the vicinity of the structure. d: Dermis, h: Hypodermis, b: Bony margin of the skull