Splenosis mimicking pelvic mass

Abdominal and pelvic splenosis: atypical findings, pitfalls, and mimics

Splenosis is an acquired form of ectopic splenic tissue that typically arises after trauma or splenectomy. It is often an incidental image finding in an otherwise asymptomatic patient, but the spectrum of symptoms varies based on the site of implantation. Radiologists should be familiar with the imaging features of splenosis to avoid mistaking it for malignancy. Splenosis has identical imaging features to that of the native spleen on US, CT, MRI, and nuclear medicine examinations. Therefore, when the radiologic findings support the diagnosis of splenosis, the patient can be spared invasive procedures for tissue sampling.

WFUMB Position Paper-Incidental Findings, How to Manage: Spleen

The World Federation for Ultrasound in Medicine and Biology (WFUMB) is addressing the issue of incidental findings (IFs) with a series of publications entitled "Incidental Imaging Findings-The Role of Medical Ultrasound." IFs are less commonly encountered in the spleen than in many other abdominal organs but remain a frequent dilemma in clinical practice. A histological diagnosis is rarely necessary for patient management. Many IFs, such as secondary spleens and splenic cysts, are harmless and do not require any further investigation. The diagnosis of many other focal splenic lesions is, however, often problematic. The following overview is intended to illustrate a variety of incidentally detected spleen pathologies such as size variants, shape variants, secondary spleens, focal splenic lesions and splenic calcifications. It should aid the examiner in establishing the diagnosis. Moreover, it should help the ultrasound practitioner decide which pathologies need no further investigation, those requiring interval imaging and cases in which immediate further diagnostic procedures are required.

Splenosis of the abdomen and pelvis complicated by torsion of a splenic implant clinically mimicking an acute bowel ischemia

We present a case of splenosis of the abdomen and pelvis complicated by torsion of a splenic implant in a young female patient clinically mimicking an acute bowel ischemia. Splenosis is a benign condition defined as heterotopic auto-transplantation of splenic tissue throughout different body areas. It may occur after rupture of the spleen, either traumatic or secondary to surgical procedures. Although the presence of heterotopic splenic tissue is often asymptomatic and an incidental finding, it may present with sudden abdominal pain and bleeding. CT and MRI play a critical role in the detection of splenosis-related complications, such as torsion of the vascular pedicle and infarction. Splenosis torsion is extremely rare and it is still a diagnostic dilemma; the complication of abdominal splenosis should be considered in the differential diagnosis in patients with previous splenectomy.

[Pelvic nodules in a young woman: All is not endometriosis!]

Splenosis is a pathology resulting from a rupture of the spleen due to a trauma or a surgery. We report the case of a patient presenting with a splenosis, initially diagnosed as endometriosis-related pelvic nodules, the most frequent cause of pelvic nodules in women. We will describe the imaging strategy that led to the final diagnosis of splenosis.

Pancreatic splenosis demonstrated by contrast-enhanced sonography

Pancreatic splenosis is a very rare condition whose features on contrast-enhanced ultrasound (CEUS) have not, to our knowledge, been previously reported. We present the imaging findings in a case of pancreatic splenosis, in which a confident diagnosis was achieved with the use of CEUS and confirmed by a labeled heat denatured red cell scan. Accumulation of ultrasound contrast microbubbles in splenic tissue can be readily visualized on late-phase CEUS and this technique has already been used to confirm the nature of intrapancreatic accessory spleens. This case shows that it can also confirm the diagnosis of splenosis.

Robotically assisted laparoscopic management of pelvic splenosis

Robotically assisted laparoscopy is a superior technique for the management of abdominopelvic splenosis, which is an often unsuspected cause of pelvic pain. A 25-year-old female with a distant history of traumatic splenic rupture and splenectomy was diagnosed with splenosis at the time of laparoscopy for vague abdominopelvic pain. She was transferred to our service for evaluation and definitive surgical management. We report the use of robotically enhanced laparoscopy for the excision of the splenic tissue. Splenosis is a potential cause of pelvic pain in a patient with a history of splenic injury. Robotically assisted laparoscopy provides the manual dexterity and the enhanced field of view necessary for the meticulous nature of this surgery.

A case of ventral hernia mesh migration with splenosis mimicking a gastric mass

This case reports the presentation and investigation of a 64-year-old woman presenting with symptoms of bowel obstruction and found to have synchronous intraluminal migration of a polypropylene mesh from a ventral hernia repair and splenosis compressing the stomach wall. The use of synthetic mesh in any type of hernia repair has a number of risks, one of which is transmigration. This is a very rare complication but has been reported in a number of cases following both open and transabdominal pre-peritoneal repairs of inguinal hernias. Heterotopic splenic tissue or "splenosis" can be a cause of a soft tissue mass, which can mimic a neoplasm leading to misdiagnosis. These implants result from either splenic trauma or after splenic surgery.