Computed tomography of recurrent rectal carcinoma

Area of Science:

• Radiology
• Oncology
• Surgical Pathology

Background:

• Rectal carcinoma is a significant cause of cancer-related mortality.
• Early detection of local recurrence is crucial for effective patient management.
• Surgical excision (abdomino-perineal or anterior resection) is a primary treatment modality.

Purpose of the Study:

• To evaluate the diagnostic accuracy of computed tomography (CT) in detecting local recurrence of rectal carcinoma.
• To assess CT performance in patients who have undergone different types of rectal excision surgery.

Main Methods:

• A retrospective analysis of 28 patients who underwent rectal excision for carcinoma.
• Computed tomography scans were performed to assess for local recurrence.
• Diagnostic accuracy was compared against confirmed cases.

Main Results:

• Computed tomography provided a correct diagnosis in 21 out of 22 cases (95.5%) following abdomino-perineal excision.
• CT correctly identified local recurrence in 5 out of 6 cases (83.3%) after anterior resection.
• Overall, CT demonstrated high accuracy in diagnosing local rectal carcinoma recurrence post-surgery.

Conclusions:

• Computed tomography is a highly effective imaging modality for diagnosing local recurrence of rectal carcinoma.
• CT plays a vital role in the post-operative surveillance of patients treated with rectal excision.
• The findings support the use of CT in routine follow-up protocols for rectal cancer patients.