Variations in the size and shape of the spleen are common. But the variations of its diaphragmatic surface are extremely rare. Since the variations are rare, they become clinically important when they exist. We found a deep fissure on the diaphragmatic surface of a spleen. The fissure was quite deep and the peritoneum entered the depth of the fissure in a similar manner as pleura entering the fissures of the lung. There were no notches on the superior border of this spleen.
