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Intercostal scan plane. Note the transducer has been rotated to be parallel to the rib space.
(This example shows the patient on their side, however supine is preferable)
The size of the spleen can be extremely variable ranging from 7cm- 14cm (adults).
Accessory spleens or splenunculi are common.
(singular = splenunculus)
To assess the size, shape, texture and vascularity of the spleen.
The spleen has a homogeneous appearance. When it becomes enlarged it loses this shape and, as it expands, it becomes very rounded, sometimes appears extending beyond the Left kidney.
Normal Adult Spleen Size
Ref : SONOGRAPHY Introduction to Normal Structure and Function Second Edition Reva Arnez Curry and Betty Bates Tempkin Saunders
Ref: Ultrasound: The Requisites, CHAPTER 8, 209-219
For a pediatric spleen size calculator
For examples of ultrasound splenic pathology
Overlying bowel gas, overlying lung base or rib shadows can cause problems. To improve visualisaion, change rib spaces or slowly roll the patient,
Try inspiration,expiration,distended abdomen,erect Rarely the left lobe of the liver (if enlarged) may be used as a window to assess the superoanterior portion of the spleen.
At least one image of the spleen with a measurement from tip to tail.