LAUSR

A 60-year old farming woman presented with a 2-day history of fever, left upper quadrant abdominal pain and vomiting. On examination, the patient had a temperature of. 100.4 °F, pulse rate of 96 beats/min and BP of 130/70 mm Hg. Abdominal examination was notable for tender splenomegaly. Laboratory tests showedmild anaemia, leucocytosis, thrombocytopenia and elevated erythrocyte sedimentation rate. Blood cultures were negative. A chest radiograph was normal. An abdominal ultrasound (US) revealed a hypoechoic cystic mass lesion originating from the spleen. An abdominal computed tomography (CT) scan (Fig. 1, panel A) andmagnetic resonance imaging (MRI) scan (Fig. 1, panel B) revealed a large cystic mass in the spleen. The patient underwent splenectomy (Fig. 1, panel C). The histopathology of the cyst is shown (Fig.1, panel D).