ObjectiveTo review the authors' recent experience and that of the literature since 1973 and to provide management guidelines for true aneurysms of the pancreaticoduodenal arteries (PDA). Summary Background DataTrue aneurysms of the PDA are rare, with a total of only 52 cases reported since 1973.

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Local application of 4% formaldehyde for the treatment of haemorrhagic radiation-induced proctitis gives good results, is well tolerated and easy to perform. Formaldehyde applied selectively causes thromboses of the bleeding vessels, without deep lesions or extended necrosis.

Anal endosonography with rotating endoprobes provides state-of-the-art imaging of sphincter integrity; however, the technique is not widely available and requires expensive equipment. Since pelvic anatomy permits the use of standard external ultrasound probes, we tested the feasibility, tolerance and reproducibility of uniplanar perineal sonography, with respect to visualisation of the anal sphincter, using both convex and linear 3.5- to 7.5-MHz and 360 degree rotating 7-MHz probes. Twenty healthy nulliparus female volunteers were investigated. Two operators performed endosonography and perineal sonography in duplicate, each blinded to the findings of the other. We then used this technique to examine 20 postpartum primiparus patients. The examination was well tolerated by all subjects. The internal anal sphincter appeared in perineal sonography as a hypoechogenic ring surrounded by an echogenic ring representing the external anal sphincter. Endosonography revealed six sphincter tears, four external and internal sphincter tears, one isolated external tear and one isolated internal tear. Perineal sonography recognised in all cases external sphincter tears. In one case the internal sphincter defect was missed. Perineal sonography appears to be a feasible alternative to anal endosonography in female patients and provides good information on external sphincter defects suggesting that this procedure might be particularly useful in incontinence screening. Perineal sonography gives a good image of internal sphincter. The lack of an isolated internal defect cannot be considered as relevant to our study.

Although the long term survival in stage I and II is similar in men and women, the rarity of breast carcinoma in men and its location in the subareolar region may delay diagnosis and treatment.