A 33-year-old male patient with abdominal mass for a year was referred to our institute. CT scan with intravenous contrast was performed, which showed a cystic lesion at the infraumbilical region, beneath the anterior abdominal wall with the presence of solid enhancing mass apposed to the anterior wall of the cyst. We suggested a diagnosis of urachal cyst with possibility of malignancy. On surgical exploration, the cystic mass was found superior to and separate from the urinary bladder dome. Histopathology revealed transitional cell carcinoma in a urachal cyst.
Osseous hydatid disease is caused by the parasitic tapeworm Genus Echinococcus. Patients usually present with pain, swelling, or pathological fracture.
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