Microscopical study of white and red pulp of spleen of young porcine (Sus Scrofa)‎ spleen

الملخص EN

-The spleen of six young porcine aging (2 month) each spleen was examined grossly and studied using light and transmission electron microscopy.

The spleen is an important lymphoid organ of immunological defense.

The type of pig spleen is sinusal type spleen, it has a role in many hematological functions as storage, filtration and maturation of reticulocytes.

The splenic parenchyma of young pig consisted of white and red pulp.

The whit pulp formed of few sporadic lymphocytes and seldomly lymphatic nodules.

Were found occasionally a single ovoid mass of lymphoid nodule (Peri-arterial Lymphatic Sheath) was few in pig spleen Ellipsoids (Pericapillary Macrophage Sheath) were not clearly defined in the marginal zone which is also not well demarcated.

The red pulp occupied the majority of pig spleen it consisted of splenic cords and few mall sized blood sinusoids lined by flat endothelial cells containing different blood cells as neutrophils and blood platelets.

The histology of the spleen was described in different animals' species but to the best of our knowledge there is no available literature concerned with the histology of the Egyptian pig spleen, so we aimed in our study to illustrate the main histological and electron microscopical structure of splenic parenchyma