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, ectasis (ek-tā'zē-ă, ek'tă-sis),
Dilation of a tubular structure.
[G. ektasis, a stretching]
Farlex Partner Medical Dictionary © Farlex 2012


, ectasis (ek-tā'zē-ă, ek'tă-sis)
Dilation of a tubular structure.
[G. ektasis, a stretching]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


, ectasis (ek-tā′zh(ē-)ă) (ek′tă-sĭs) [Gr. ektasis, stretching, tension]
Dilatation of any tubular vessel.

duct ectasia

An inflammatory condition of the lactiferous ducts of the breast. There may be a discharge from the nipple, inversion of the nipple, and periareolar sepsis. The ectasia may occur at any age following menarche. Even though it resembles carcinoma of the breast, it is not malignant.


The cause is unknown, but in some cases it may be associated with hyperprolactinemia due to a pituitary tumor.


Duct ectasia is treated with surgical drainage of the abscess and antibiotics.

dural ectasia

A dilation of the membranes that line the lumbosacral spine, typically seen in patients with Marfan syndrome.

hypostatic ectasia

Dilatation of a blood vessel from the pooling of blood in dependent parts, esp. the legs.

ectasia iridis

Small size of the pupil of the eye caused by displacement of the iris.
Medical Dictionary, © 2009 Farlex and Partners