Fig. 2
From: Cystic hygroma in a female suckling pig: a case report
A–D Macroscopic, histologic and immunohistochemical investigation of the cystic hygroma; A a large mass is seen in the right cranial hip joint region. B Wall of the cystic mass composed of a peripheral fibrous capsule lined by a simple squamous epithelium (× 20). C Closer view on the squamous cells lining in single layer the central cavity (× 40); D immunohistochemical positivity for Factor-VIII is seen as week cytoplasmic granular staining in multifocal spindle lining cells (arrowhead) lining the central cavity of the mass and the vessels immersed in the wall (× 40)