Usefulness of endoscope guided transabdominal ultrasonography in T staging of colorectal cancer.

Background/aims: We investigated the efficacy of endoscope guided transabdominal ultrasonography (EGTUS) for the evaluating the depth of colorectal cancer invasion.

Methodology: The subjects were 52 patients with colon cancer and 30 patients with rectal cancer who underwent transabdominal US and curative surgery. During endoscopy, we applied transabdominal US by filling the area around the tumor with de-gassed water.

Hematogenous umbilical metastasis from colon cancer treated by palliative single-incision laparoscopic surgery.

Sister Mary Joseph's nodule (SMJN) is a rare umbilical nodule that develops secondary to metastatic cancer. Primary malignancies are located in the abdomen or pelvis. Patients with SMJN have a poor prognosis.

A case of splenosis: diagnosis with contrast-enhanced ultrasonography.

We performed contrast-enhanced ultrasonography (CEUS) for a patient with known splenosis. One mass was clearly enhanced while another mass showed moderate enhancement. The right kidney showed similar enhancement and was a little confusing.

A splenic pseudotumor: an accessory spleen.

We encountered a case of splenic pseudotumor. It contained a cystic portion, and the solid portion of the mass showed much higher vascularity than the proper spleen on dynamic CT. An accessory spleen was considered most likely, but the differential diagnosis still included malignant lymphoma and metastatic tumor.

A case of Fitz-Hugh-Curtis syndrome: Thickening of the lateroconal fascia and posterior renal fascia.

We encountered a case of Fitz-Hugh-Curtis syndrome. Ultrasonography and computed tomography revealed a thickening of the lateroconal fascia and posterior renal fascia. These fasciae might be sensitive, although not specific, markers for this entity.