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Computed tomographic scanning in rectal carcinoma.

G Zheng, R J Johnson, B Eddleston

    Journal of the Royal Society of Medicine
    |November 1, 1984
    PubMed
    Summary
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    Computed tomographic (CT) scanning effectively assesses local invasion in rectal carcinoma before surgery. However, CT scanning is unreliable for detecting lymph node spread but is valuable for diagnosing recurrent rectal cancer and planning palliative radiotherapy.

    Area of Science:

    • Oncology
    • Radiology
    • Surgical Pathology

    Background:

    • Rectal carcinoma management requires accurate staging for treatment planning.
    • Assessing local tumor extent and lymph node involvement is crucial for rectal cancer prognosis.
    • Computed tomographic (CT) scanning is a non-invasive imaging modality used in oncology.

    Purpose of the Study:

    • To evaluate the utility of CT scanning in assessing local spread of rectal carcinoma.
    • To determine the reliability of CT scanning in identifying recurrent rectal cancer.
    • To assess the role of CT scanning in treatment planning for rectal cancer patients.

    Main Methods:

    • Retrospective analysis of 85 patients with rectal carcinoma undergoing CT scanning.
    • Correlation of CT findings with surgical and histological assessments for local invasion.

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  • Evaluation of CT scanning for diagnosing recurrent rectal cancer after surgical resection.

    • Main Results:

    • CT scanning showed good correlation with histological assessment of local invasion in 37 pre-operative patients.
    • CT scanning was found to be unreliable for assessing regional lymph node involvement.
    • CT scanning proved valuable in diagnosing recurrent rectal cancer in 48 post-operative patients.
    • CT scanning identified patients with resectable recurrence and aided in planning radiotherapy.

    Conclusions:

    • CT scanning is a valuable tool for assessing local invasion in rectal carcinoma prior to surgery.
    • CT scanning is not reliable for evaluating lymph node metastasis in rectal cancer.
    • CT scanning is highly effective in diagnosing recurrent rectal cancer and guiding palliative radiotherapy strategies.