Images in Pathology - Pseudomyxoma Peritonei Masquerading as Abdominal Hydatidosis

A 50-year-old male presented with gradually increasing abdominal distension and right inguinoscrotal swelling of two years' duration. On clinical examination, the distended abdomen was soft, nontender, with presence of shifting dullness. A 10 x 8 cm nodular mass was felt in the right paraumbilical region with minimal intrinsic mobility. The right inguinoscrotal swelling measuring 12 x 6 cm was firm to hard and was irreducible. The right testis and cord could not be palpated separately. Abdominoscrotal ultrasonogram showed multiple echogeneic areas occupying the abdominal cavity as well as lesions in the liver and spleen suggestive of intraperitoneal hydatid disease with extension to the right scrotum (Figure 1). This was further ratified by the computerised tomographic (CT) scan of the abdomen and the pelvis.