pathologic continuity of structure, as in dyschondroplasia.
diaphyseal aclasis hereditary multiple exostoses.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A state of continuity between normal and abnormal tissue.
Synonym(s): aclasia
[G. a- priv. + klasis, a breaking away, a fragment]
Farlex Partner Medical Dictionary © Farlex 2012


(1) A pathological continuation of a normal structure—e.g., an exostosis.
(2) An obsolete term for a condition or sequence of events affecting the embryo, in which the lack of remodeling results in structural deformities.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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3-D printout of a DICOM file to aid surgical planning in a 6 year old patient with a large scapular osteochondroma complicating congenital diaphyseal aclasia. J Radiol Case Rep.