Splenic torsion mistaken for an ovarian cyst: a case report

BACKGROUND

Wandering spleen (or ectopic spleen) refers to a hyper-mobile spleen resulting in its displacement from the normal anatomical position to usually in the lower abdominal or pelvic cavity. While ultrasound is often the first radiological modality used, Computed Tomography (CT) shows a clear picture and aides to reach a diagnosis. In circumstances where appropriate imaging modalities are not available, or the operator is inexperienced, diagnosis of wandering spleen can be missed.

CASE PRESENTATION

A 22-nulligravida unmarried Sindhi female had presented to the Emergency Room (ER) with a 5-day history of intermittent severe lower abdominal pain. An ultrasound at a local practitioner had suggested an ovarian cyst. Ultrasound-pelvis and later CT scan at our facility reported an enlarged wandering spleen with torsion of its pedicle and infarction. Exploratory laparotomy with splenectomy was done. An enlarged wandering spleen was found with torsion of the splenic vein and thrombosed arterial supply from omentum wrapped over the mass. The patient developed thrombocytosis post-surgery but otherwise did well and was discharged after 2 days.

CONCLUSION

Splenic torsion secondary to a wandering spleen can be challenging to diagnose, especially in resource limited settings where ultrasound might be the only modality available. Timely diagnosis and proper intervention are key to saving the life and the spleen.

Diagnosis, management and outcome of splenic torsion; a systematic review of published studies

INTRODUCTION

Splenic torsion is a rare condition but one that many surgeons will encounter once in their career. Management options are varied but due to the rarity of the condition there are no contemporary evidence-based summaries to inform a treating clinician. We aim to describe patterns of presentation and provide an evidence-based guide to the management.

METHODS

A PRISMA structured meta-analysis was conducted of all published cases of splenic torsion and a recent case added from our institution.

RESULTS

408 cases were identified between 1888 and 2021 and a single case added from our institution, 312 cases were sourced from case reports and 96 from 40 case series. 8% of patients had a co-existing congenital anomaly and 28% an identified risk factor for splenic torsion. 82% required emergency surgery. A preoperative diagnosis is becoming more common, reaching 80% in 2020's. While spleen conserving surgery is feasible using a variety of techniques. splenectomy was the definitive management for the majority (82%). On histopatholy no occult disease was identified and a significant number of resected spleens were potentially viable; 32% were reported to be normal or congested and 14% demonstrated only partial or focal necrosis.

DISCUSSION

Despite the significant publication bias implied by the methodology this is a large dataset in a rare condition. Splenic torsion frequently occurs in a premorbid population. The presence of a palpable mass in the context of abdominal pain should increase suspicion and trigger cross sectional imaging. Conservation of the spleen, using the techniques discussed, should be seriously considered.

Torsion of wandering spleen treated by laparoscopic splenopexy: A case report

•

Wandering spleen.

•

Laparoscopic splenopexy.

•

Torsion of splenic pedicle.

Introduction

A wandering spleen is a mobile spleen as a result of deficient splenic peritoneal ligaments and elongation of its vascular pedicle. It is a rare entity affecting mainly young adults commonly females and children, presenting as an asymptomatic abdominal mass or abdominal discomfort due to torsion and de-torsion of the pedicle.

Presentation of case

We report a 35-year-old female presented with intermittent colicky abdominal pain that worsened in severity over three weeks. Diagnostic laparoscopy showed torsion of spleen without infarction. Detorsion and Splenopexy in an extra-peritoneal pouch was performed. Post operatively, the patient recovered well and was healthy at two months follow up.

Discussion

A wandering spleen is either congenital or acquired. The condition results in a long vascular pedicle, which predispose to the torsion resulting in a partial or complete infarct of the spleen. Laparoscopic approach is the preferred technique and de-torsion of the splenic pedicle and splenopexy is a reasonable surgical option, when there is no evidence of infarction of the spleen.

Conclusion

The diagnosis of wandering spleen is very rare and extremely difficult to establish and is clinically nonspecific. An early diagnosis and surgical care are required for preserving the spleen. Additional imaging examinations can help establish a diagnosis.

Wandering spleen with horseshoe kidney a rare occurrence

•

Wandering spleen with horseshoe kidney is a rare occurrence with less than 3 cases reported worldwide.

•

Delay in diagnosis would result is increased mortality.

•

Splenopexy is preferred in children with the exception of grossly infarcted spleen.

•

Splenectomy is the treatment of choice in torsion of spleen with infarct.

Introduction

Wandering spleen is a rare clinical entity in itself, with only 2 cases reported thus far when correlated with congenital under-development of the kidney, it usually happens due to under development of its surrounding ligaments. Herein we present a case of wandering spleen with underlying congenital deformity of horseshoe kidney which requires splenectomy due to late presentation.

Presentation of case

A 21 year old lady presented with worsening of chronic abdominal pain for 3 years, associated with nausea and vomiting. Physical examination showed a vague mass located at epigastric region. Consecutively, computed tomography images showed a well-defined, oval, hypoechoic spleen extending from center of abdomen up to epigastric region measuring 15.5 × 13 cm with twisted pedicle. Finally the patient underwent surgical treatment. The intraoperative findings were consistent with computed tomography images. The patient made a full recovery and was discharged well.

Discussion

Wandering Spleen was first described by Van Horne during autopsy back in 1667. Its location is maintained by peritoneal attachments such as lienorenal, splenocolic, splenophrenic, gastrosplenic and phrenicocolic ligaments. Among which, the gastrosplenic ligament and lienorenal ligaments are of greatest significance. Patient with a wandering spleen may present asymptomatic, with a movable mass in the abdomen, or with chronic or intermittent abdominal pain because of partial torsion and spontaneous de-torsion of the spleen as in our case. When feasible especially in young patients, splenopexy should always be the first consideration but however if gross infarct has occurred then splenectomy is inevitable to save the patient.

Conclusion

Wandering spleen is a unique surgical entity moreover when appeared in congruence with horseshoe kidney. Its diagnosis should be made in prompt to prevent splenic infarction and to try to salvage with splenopexy especially in younger population. However in patient where splenic torsion with infarction has occurred, splenectomy would be the treatment of choice.