Malignant Anal Lesions: Report of Eight Cases

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During the period 1963-1972, 8 cases with malignancy in the anal region were admitted to our department of surgery. We have reviewed the pathology, treatment and prognosis about these cases. The conclusions are as follows : 1) They were histologically 6 anal carcinomas, one advanced rectal carcinoma, and one lympho-reticulum cell sarcoma. 2) Out of 5 carcinomas in the anal canal and anal margin, 2 presented interesting histological features compatible with diagnosis of anal duct carcinoma. The remaining cases were one squamous cell carinoma and 3 adenocarcinoma associated with anal fistulas. 3) The prognosis of malignancy in the anal region was poor with only 2 cases being well for about three years. Both of these were included among 4 cases treated by abdomino-perineal resection combined with groin dissection. On the other hand, local excision, irradiation therapy, and local infusion by anti-cancer drugs gave poor results in other 4 cases. 4) Often anal malignant lesion are erroneously diagnosed benign or inflammatory lesion, such as haemorrhoids and fistulas, prior to biopsy. Accordingly the diagnosis is apt to be done too late for the patients to receive necessary treatment.
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