Micrograph of an ameloblastoma showing characteristic<unk> ng. H&E stain. In histopathology, a<unk> is a single layer of relatively long cells, arranged loosely perpendicular to a surface and parallel to each other. A rosette is a<unk> in a halo or spoke-and-wheel arrangement, surrounding a central core or hub. A pseudorosette is a perivascular radial arrangement of neoplastic cells around a small blood vessel.
Palisade 
Claudication
Pericarditis
Myopericarditis
Tamponade
Carditis
Wooden chest syndrome
Rigor mortis