8014 Images : Last Website Update : November 5, 2017
Follow us:        
Advertise With Us!

Cardiac Rhabdomyoma : Histology

slide 16 of 41

Comments:
Cardiac rhabdomyomas are composed of large vacuolated cells with abundant glycogen – so called “spider cells.” This appearance is caused by centrally placed nucleus from which myofibrils radiate to the cell membrane. PAS stain is strongly positive due to glycogen. With electron microscopy, these cells are found to have abundant glycogen, few irregular myofibrils and a poorly-developed sarcoplasmic reticulum.

This photomicrograph shows atrial rhabdomyoma in a 1 y/o male. Image courtesy of: Dr. Jose Bellasai, Professor of Pathology, Univ. National & Univ. Catholic of Asuncion, Paraguay.

slide 16 of 41