Palpable lump on the anterior abdominal wall. No prior surgery. No trauma.
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2 cm spiculated right lower midline anterior abdominal wall mass abutting the rectus sheath.
A small enhancing linear focus of tissue communicates with the mass and towards the anterior aspect of the dome of the bladder.
The upper abdomen is normal in appearance.
An image-guided biopsy of this deep anterior abdominal wall mass was undertaken.
HISTOLOGY: Urachal carcinoma
Carcinoma is one of a range of urachal abnormalities which can occur. Be careful to look for the communication, sometimes subtle, with the dome of the bladder.