Fig. 2
From: Estrogen is involved in hemangioma regression associated with mast cells
Immunostaining for E2 and tryptase in IH. Large numbers of E2 (a, IHC, × 100; b and c, IHC, × 200) and tryptase (d, IHC, × 100; E and F, IHC, × 200) positive MCs were found within all IH specimens. IH in the proliferative phase (a, b, d, and e) contained fewer E2 and tryptase positive MCs compared with early involuting phase specimens (c and f) (IHC, × 200)