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  • Title: [11 cases of anal Bowen's disease].
    Author: Kreyden OP, Herzog U, Ackermann C, Schuppisser JP, Spichtin HP, Tondelli P.
    Journal: Schweiz Med Wochenschr; 1996 Sep 07; 126(36):1536-40. PubMed ID: 8927957.
    Abstract:
    Bowen's disease of the anal region is a rare, slow-growing, intraepidermal squamous-cell carcinoma (carcinoma in situ). If surgical excision is incomplete, there is a risk of subsequent development of malignancy and metastasis. Between 1980 and 1995 we treated 11 patients (8 female, 3 male) with anal Bowen's disease. The mean age was 55 (34-75) years. The main reason for excision was: pain (4), itching (3), bleeding (3) and a disturbing lump (3). The intraoperative findings were in all cases a lesion at the anocutaneous line: perianal or intra-anal tumor (6), erosion (2) or ulceration (2) as well as lichenoid lesion (4) or hyperpigmentation (3). The procedure was excision of the lesion in 10 cases. Only in one case was a biopsy taken. 3 patients had to be operated on a second time for reasons of radicality. 5 years after primary diagnosis, one patient developed a recurrent invasive squamous-cell carcinoma and had to undergo perineo-abdominal rectum amputation with postoperative radiotherapy (2 years after operation). Only one patient underwent a biopsy, which produced the diagnosis of invasive squamous-cell carcinoma. He underwent combined chemo-radiotherapy. The symptoms of anal Bowen's disease are unspecific and the clinical findings are uncharacteristic. The recommended therapy is complete surgical excision. With complete excision no recurrences do occur.
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