Large Bowel Obstruction from Colon Cancer

Most retroperitoneal sarcomas present by one of the following symptoms EXCEPT

Painless abdominal mass

Lower extremity swelling

Bowel obstruction

Leg weakness or pain

What factors must be present in order to offer a patient a self-expanding metal stent as a "bridge" to surgery.

Microperforation or focal peritonitis

Right-sided tumor

Evidence of at some lumenal patency

Patient with evidence of stage IV disease

Each of the following are blood tests to consider in a patient with a new retroperitoneal mass and associated underlying diagnosis EXCEPT:

CA 19-9 - Metastatic gallbladder cancer

AFP - testicular cancer

Beta-hCH - testicular cancer

Lactate Dehydrogenase - lymphoma

What percent of soft tissue sarcomas are found within the retroperitoneum

<5%

10-15%

35-40%

>75%

All of the following are common types of retroperitoneal sarcoma EXCEPT:

Well-differentiated liposarcoma

De-differentiated liposarcoma

Leiomyosarcoma

Rhabdomyosarcoma

For metastatic retroperitoneal sarcoma, medical oncologists will often choose one of the following EXCEPT:

5-FU

Doxorubicin

Ifosfamide

Docetaxel

Which of the following is an essential component of urgent colectomy?

Bowel preparation

Intraoperative decompression

Nodal dissection along vascular pedicles

Hand sewn anastomosis

All of the following are surgical options for duodenal invasion of a colon cancer except.

Whipple

Partial D2 resection with longitudinal duodenal repair

Serosal "thal" patch

Segemental D3 resection with primary anastomosis

Each of the following are critical components of surgical resection of retroperitoneal sarcoma EXCEPT:

Identification/protection of ureters

En bloc resection of mass with adherent viscera

Bypass of major vessels adjacent tumor

Placement of fiducials to facilitate adjuvant radiation

What is the optimal interval for surveillance scans after resection of retroperitoneal sarcoma

Monthly for the first year, then every 6 months

Every 4 months for the first 2 years, then yearly thereafter

Yearly

You take a patient to the OR for a partially obstructing sigmoid colon cancer. Intraoperatively, you encounter a 6cm right-sided liver mass. Which of the following the most appropriate action.

Right hepatectomy and sigmoid colectomy with anastomosis

Microwave ablation of liver lesion and Hartman's operation

Biopsy liver lesion and resect sigmoid colon with anastomosis

Close abdomen, palliative care consult

Large Bowel Obstruction from Colon Cancer

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