ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

摘要:

ConclusionsThe gross and microscopic pathologic findings in our 354 patients overwhelmingly favor the theory of acquired origin in most patients with pilonidal sinus. The facts appear to show that the reason there has been so much debate over whether pilonidal disease is congenital or acquired in origin is because there are two different types of the disease.A new classification of pilonidal disease based on etiology is proposed as a result of this study. In this classification the disease is divided into two groups: (1) congenital, and (2) acquired. These two types are further subdivided; the congenital into the neurogenic and ectodermal, and the acquired into the post‐traumatic and postsurgical.Neurogenic and ectodermal pilonidal sinuses are relatively uncommon, probably less than 10 per cent of the total, whereas the acquired variety of post‐traumatic and postsurgical lesions constitute 90 per cent of the cases.

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

摘要:

SummaryMetastatic involvement of the liver by squamous cell carcinoma of the anus is of rare occurrence. Medical literature on this subject is reviewed and an illustrative case is presented. Twenty‐four instances of hepatic metastasis have been reported.

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

摘要:

Summary and ConclusionsHistologic examination was carried out on 32 surgical specimens removed by radical hemorrhoidectomy. Material for comparative study was also obtained from the adjacent rectal mucosa and from the subcutaneous portion of the external sphincter.Inflammatory exudates were minimal in those cases in which the overlying mucosa was intact, whether the hemorrhoids were thrombosed or not. It appeared that thrombosisper sedid not cause inflammatory changes in the hemorrhoidal area or in the surrounding tissues.When superficial ulceration was present there were marked inflammatory changes in the immediate vicinity but they disappeared rapidly in the deep tissues. Ulceration was found more frequently in cases of prolapsed and trombosed hemorrhoids.Even in the presence of ulceration there were no significant inflammatory changes in the deep tissues, the adjacent rectal mucosa or the subcutaneous portion of the external sphincter muscle.Ulceration of the overlying mucous membrane and not the presence of thrombosis seemed to be the determining factor in the degree of inflammatory change.The presence of recent thrombosis did not increase the difficulty of the operative procedure, the length of convalescence, the postoperative pain, the occurrence of postoperative infection, nor did it in any way impair the final result. We feel that early surgery in prolapsed and thrombosed hemorrhoids should be reserved for the experienced anorectal surgeon.

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID

ISSN:0012-3706    

出版商:OVID    

年代:1962

数据来源: OVID