Fig. 4 in Morbidity in California giant salamander (Dicamptodon ensatus Eschscholtz, 1833) caused by Euryhelmis sp. Poche, 1926 (Trematoda: Heterophyiidae)

Fig. 4. Photomicrographs from euthanized, chilled larval California giant salamanders (Dicamptodon ensatus) from a morbidity event in Santa Clara and Santa Cruz Counties, California, USA. (A) Encysted metacercariae (arrows) in the subcutis of the head are surrounded by inflammation and cause undulation of the skin. Cartilage and bone of the skull are to the left. (B) Skin with two encysted metacercariae (arrows) in the subcutis surrounded by macrophages, heterophils, edema (stars). Note the elevation of the epidermis. (C) Skeletal muscle with a metacercaria (M) within a cyst wall (arrow) surrounded by a few macrophages. (D) Kidney with an encysted metacercaria (arrow) in the interstitium that is surrounded by a few macrophages. A glomerulus (G) and tubules (T) are unaffected. Photo credit: J. L. Miller (USGS).