Document Detail

Herniation pit of the femoral neck.
MedLine Citation:
PMID:  6979213     Owner:  NLM     Status:  MEDLINE    
A round to oval radiolucency surrounded by a thin zone of sclerosis is often identified in the proximal superior quadrant of adult femoral necks. Although usually recognized as incidental and benign, these radiolucencies may be of clinical concern in patients with hip symptoms. The true nature and genesis of these radiolucencies have not been explained. This article relates these radiolucencies to common acquired degenerative changes developing on the surface of the femoral neck in adults (the reaction area) and shows that the radiolucency represents a subcortical pit or cavity formed by herniation of soft tissue contents through defects in the surface of the reaction area. The formation of this pit and its relation to the commonly seen femoral neck radiolucency has not been previously described. The name "herniation pit" is suggested for these lesions.
M J Pitt; A R Graham; J H Shipman; W Birkby
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  138     ISSN:  0361-803X     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  1982 Jun 
Date Detail:
Created Date:  1982-07-22     Completed Date:  1982-07-22     Revised Date:  2008-02-15    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1115-21     Citation Subset:  AIM; IM    
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MeSH Terms
Bone Diseases / radiography
Diagnosis, Differential
Femoral Neoplasms / radiography
Femur Neck / pathology,  radiography*
Hip Joint
Middle Aged
Osteoma, Osteoid / radiography
Stress, Mechanical

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