This document discusses imaging of the spleen and summarizes various congenital anomalies and pathologies that can affect the spleen. Some common congenital anomalies mentioned include accessory spleens, asplenia, polysplenia, and splenic fusions. Acquired conditions like repeated infarctions, infiltration, tumors, and cysts can also cause splenomegaly or functional asplenia. Wandering spleen is discussed as a rare congenital anomaly where the spleen lacks attachments and is mobile within the abdomen. Various grades of splenic lacerations and examples of splenic imaging findings are also briefly summarized.

1. Imaging of the spleen.
Dr/ ABD ALLAH NAZEER. MD.

15. Congenital anomalies:
Accessory spleen.
Asplenia, Polysplenia.
Hepatoliennal fusion.
Hyposplenism.
Splenic -gonadal fusion.
Splenorenal fusion.
Wandering spleen.

16.  Accessory spleen
10-30%. May enlarge dramatically
after splenectomy

18. Asplenia/polysplenia.
Congenital
Surgical
Functional
Repeated infarctions
Splenic Artery Thrombosis
Acute engorgement
Splenic sequestration crisis with
SS, malaria, splenic vein thrombosis
Infiltration
Sarcoidosis, amyloidosis, cysts, tumors
Etiologies

19. Polysplenia syndrome.

21. Axial reconstructions derived from the CT portion of the PET/CT demonstrate the
‘whorled-appearance’ of the long vascular pedicle extending to the ectopic spleen.
The alternating bands of hypodensity and hyperdensity represent the splenic
vessels and surrounding fat of the twisted splenic pedicle. [red arrow = splenic
artery; yellow arrow = pancreas; white arrow = splenic vein; asterisk = spleen]
Wandering spleen

22. Wandering spleen

23. Splenic pathology.

29. Splenic hydatid cyst.

43. Splenic Lymphoma.

51. Splenomegally with
portal hypertension

52. Splenomegally

64. Grad1 11- 111 laceration.

67. Grade 111 tear, measuring more than 3 cm.

71. Grade 1V Tear.

75. Thank You.