Ectopic Spleen Tissue - an Underestimated Differential Diagnosis of a Hypervascularised Liver Tumour.

Viszeralmedizin

Department of General, Thoracic, Vascular and Transplantation Surgery, University of Rostock, Rostock, Germany.

Published: December 2015

Background: Patients with liver cirrhosis have an increased risk of developing hepatocellular carcinoma (HCC). Implantation metastasis following diagnostic biopsy is a well-known complication. Therefore, primary resection of a hypervascularised tumour suspicious for HCC is often performed with curative intent.

Case Report: An exophytically growing mass was diagnosed between liver segments III and IVb by means of ultrasound in a 53-year old male patient with decompensated liver cirrhosis. Computed tomography confirmed a 3.5 cm large hypervascularised tumour with given resectability. Intraoperatively, the tumour appeared like a HCC. Thus, an atypical resection was performed. Histopathology revealed ectopic spleen tissue without any signs of malignancy. As enquiries revealed, the patient had undergone splenectomy after a blunt abdominal trauma 9 years prior to admission.

Conclusion: In the present patient, hepatic splenosis in a cirrhotic liver was misinterpreted as HCC. In patients with a history of traumatic rupture of the spleen or splenectomy, splenosis has to be considered as a potential differential diagnosis of a hypervascularised tumour. Specific diagnostics should be performed to rule out splenosis.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4748799PMC
http://dx.doi.org/10.1159/000442115DOI Listing

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