The concave zone of papillary calculi can contain a range of calcified lesions, from little HAP residues to typical well-developed HAP plaques, also known as Randall's plaques. The morphology of ...

Photomicrograph of Score 1 broiler callus paw lesion at 42 days of age. Epidermis (E), dermis (D), Dermal papilla (DP), Papillary layer (PL), Reticular Layer (RL) and Blood Vessel (BV). HE, 20X. Under ...