Laparoscopic near-total splenectomy. Report of a case

Surgical Management of a Volvulus of a Wandering Spleen Associated with a Volvulus of the Small Intestine

Introduction

A wandering spleen is a rare anatomical condition characterized by a free-floating splenic tissue that is not located in its normal position in the left upper quadrant. This condition is usually asymptomatic but can also manifest itself with volvulus of the spleen and consequent infarction and necrosis of the parenchyma, requiring an urgent surgical management. Additionally, a wandering spleen can be associated with other contemporaneous anatomical anomalies. Case Presentation. We report a case of a 21-year-old woman, admitted to our hospital for intense abdominal pain and vomiting. A CT scan revealed a wandering spleen in the mesogastric area with the spleen torted on its axis, associated with a volvulus of the small intestine. Abdominal exploration revealed a macroscopically normal free-floating spleen attached to an abnormally long vascular pedicle. The management of the wandering spleen was conservative, and a splenopexy was performed.

Conclusions

The torsion of the wandering spleen constitutes an infrequent but life-threatening abdominal emergency. The diagnosis of the wandering spleen is frequently challenging since clinical findings are usually not specific. Imaging such as computed tomography scan plays an important role in the differential diagnosis pathway. Treatment should be planned according to the splenic parenchyma conditions. Splenectomy is indicated when massive infarction and thrombosis of splenic vessels have occurred. When splenic parenchyma is not compromised, it is preferred to perform a conservative surgical technique, such as splenopexy, in order to avoid postsplenectomy complications.

Role of Partial Splenectomy in Hematologic Childhood Disorders

The spleen is a secondary lymphoid organ that belongs to the reticular-endothelial system, directly connected to blood circulation. The spleen is greatly involved in the immune response, especially against capsulated bacteria. Splenectomy plays a fundamental role in the treatment of numerous pediatric hematologic disorders. Taking into account all the possible complications (especially infections) linked to this procedure, alternatives to total splenectomy have been sought. Partial splenectomy has been proposed as a treatment that allows the reduction of infectious risk. This approach has proven safe and feasible in most patients, but multicentric and prospective studies are necessary to more accurately define the indications for performing partial splenectomy. However, vaccinations and antibiotic prophylaxis remain fundamental for preventing serious infections, even in the case of partial splenectomy. We review anatomical and functional properties of the spleen, with a focus on medical or surgical indications to splenectomy, aiming to give practical educational information to patients and their families after splenectomy. Furthermore, we discuss the feasibility of partial splenectomy in children with hematologic diseases who require splenectomy.