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Abdominal Neoplasms↗

Gallium-67 imaging in abdominal disease.

Gallium-67 imaging is useful for detecting sites of intra-abdominal inflammation, including subphrenic abscesses, postoperative infection, pyelonephritis or perinephric abscesses, and peritonitis. Positive images may be obtained within several hours of injection, but are more reliable at 24 hr. The results may be used to guide ultrasound or computed tomography studies, which give a detailed anatomic picture of the abscess. Gallium-67 imaging has also been used to detect abdominal neoplasms, but results are less impressive. Abdominal lymphoma is detected in just over 50% of sites. Gastrointestinal, renal, and gynecologic neoplasms are detected even less frequently. However, 67Ga is useful for detecting recurrence of 67Ga-avid neoplasms, and has been reliable in detecting hepatomas and nodal spread of seminoma. When used selectively in patients with neoplastic disease and suspected abscesses, 67Ga is an effective method for diagnosing abdominal disease.

Abdomen↗

Continuing experience with palliative chemical splanchnicectomy.

Forty-one patients underwent open phenol splanchnicectomy for control of pain at the time of initial laparotomy for what was thought to be unresectable pancreatic carcinoma. Twenty-three patients underwent concomitant biliary and/or intestinal bypass procedures. In no patient was laparotomy performed only for the purpose of performing splanchnicectomy. The operative mortality was 15%. In no patient could the addition of splanchnicectomy be implicated as the cause of death. Eighty-eight per cent of patients experienced relief of pain postoperatively. The mean duration of pain control was 4.3 months. The mean postoperative survival was five months. No postoperative complications could be attributed to the addition of splanchnicectomy. Open phenol splanchnicectomy is a highly successful and safe ancillary procedure for control of pain and is recommended at the time of initial laparotomy in patients found to have advanced intra-abdominal neoplasm.

Abdominal Neoplasms↗

CT features of abdominal plasma cell neoplasms.

The aim of this study was to describe the CT features of abdominal plasma cell neoplasms. We reviewed CT imaging findings in 11 patients (seven men, four women; mean age 62 years) with plasma cell neoplasms and abdominal involvement. Helical CT of the entire abdomen and pelvis was performed following intravenous administration of contrast material. Images were analyzed in consensus by two radiologists. Diagnoses were made from biopsy, surgery and/or clinical follow-up findings. Multiple myeloma was found in seven patients and extramedullary plasmacytoma in four patients. All patients with multiple myeloma had multifocal disease with involvement of perirenal space (4/7), retroperitoneal and pelvic lymph nodes (3/7), peritoneum (3/7), liver (2/7), subcutaneous tissues (2/7) and kidney (1/7). In three of the four patients with extramedullary plasmacytoma, a single site was involved, namely stomach, vagina and retroperitoneum. In the fourth patient, a double site of abdominal involvement was observed with rectal and jejunal masses. Plasma cell neoplasm should be considered in the differential diagnosis of single or multiple enhancing masses in the abdomen or pelvis. Abdominal plasma cell neoplasms were most frequently seen as well-defined enhancing masses (10/11).

Abdominal Neoplasms↗

Chronic mesenteric ischemia masquerading as cancer.

Mesenteric vascular insufficiency should be suspected in patients with a history of abdominal pain, marked weight loss and significant atherosclerosis. Selective mesenteric angiography is essential and should be used early in the work-up studies of such patients. To ensure clinical correlation, there should be significant occlusion demonstrated in two of the three major mesenteric arteries. Four patients studied extensively for an intra-abdominal neoplasm had occlusive disease of the mesenteric artery demonstrated by arteriography. Elective surgical revascularization of the intestine successfully corrected the problem.

Abdominal Neoplasms↗