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Myoid angioendothelioma (MA) represents an extremely rare nonhaematopoietic proliferation of the spleen. MA is a rare, benign, vascular tumour that consists of vascular elements and arranged stromal cells. Due to an absence of specific clinical signs and symptoms, MA is considered challenging to diagnose. Although the radiological presentation can indicate the vascular nature of the tumour, the diagnosis of MA is almost exclusively obtained from the use of histopathology after surgical excision and immunohistochemistry of the tissue. Due to its completely unclear biological behaviour and relationship with other primary and secondary tumours, the only effective therapy for MA is splenectomy and a regular postoperative follow-up. Herein, we report a case of a 26-year-old male patient with nonspecific abdominal pain and a radiologically detected tumour of the spleen who underwent a laparoscopic splenectomy. Histopathologic and immunohistochemical examinations confirmed a myoid angioendothelioma of the spleen. [ABSTRACT FROM AUTHOR]

Methods of surgical treatment of hematological diseases of the spleen have changed significantly in the past decade. The introduction of laparoscopic and minimally invasiveprocedures as standard for solving a significant number of conditions in abdominal surgery, has led surgeons toincreasingly use laparoscopic surgery of the spleen. However, some unique anatomical characteristics of the spleen can lead to limitation in the application of laparoscopy. In this study, we investigated the application of laparoscopic splenectomy in the treatment of haematological disorders of the spleen, intraoperative and postoperative characteristics, the presentation ofoperational technique and the evaluation of the success of this procedure. In the treatment of benign hematological diseases, the effectiveness and efficiency of laparoscopy has been proven. The speculation of medical professionals is that laparoscopic splenectomy is an equal, if not the superior way of treating benign hematological diseases of the spleen in relation to the open procedure, and that there is a chance that laparoscopy might completely replace the classical surgery in most of it's indications. [ABSTRACT FROM AUTHOR]