hyaline

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hyaline

 [hi´ah-līn]
glassy; pellucid.
hyaline membrane disease a disorder of newborns, typically preterm, characterized by the formation of a hyalinlike membrane lining the terminal respiratory passages. Newborns with this disease do not secrete adequate quantities of surfactant, which is secreted by the epithelium of the alveoli and normally decreases the surface tension of the fluids lining the alveoli and bronchioles so that air can pass through the fluids and into the alveoli. If the surface tension is not kept low by adequate supplies of surfactant, the alveoli cannot fill with air and there is partial or complete collapse of the lung (atelectasis). Thus the newborn with hyaline membrane disease suffers from respiratory insufficiency with severe dyspnea and cyanosis. The condition is treated with surfactant instillation, oxygen, and positive pressure. See also respiratory distress syndrome of the newborn.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

hy·a·line

(hī'ă-lin, -lēn),
Relating to transparent or colorless hyphae or other fungal structures.
Synonym(s): hyaloid
[G. hyalos, glass]
Farlex Partner Medical Dictionary © Farlex 2012

hyaline

(hī′ə-lĭn, -līn′)
n.
Variant of hyalin.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

hy·a·line

(hī'ă-lēn)
Transparent or colorless.
Synonym(s): hyaloid.
[G. hyalos, glass]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

hyaline

Translucent or glassy, as in hyaline cartilage. Of amorphous texture.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

hyaline

transparent.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Patient discussion about hyaline

Q. HYALINE MEMBRANE DISEASE in pre-mature infants;what are the causes of it in pregnant women?

A. the cause of Hyaline Membrane disease is pre-mature birth. while the fetus develop, about in the 29th week a substance called surfactant is created in the lungs. this substance's function is to change the surface tension of the fluid in the lungs- therefore decreasing it's force. the surface tension tends to shrink the lungs and can cause the lungs to collapse. so a premature baby wouldn't be able to breath properly.

More discussions about hyaline
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References in periodicals archive ?
The Sertoli cells are usually associated with prominent basement membrane material that forms hyaline globules and interconnecting hyaline trabeculae (Figure 7, A and B).
Another characteristic feature of SPN is the focal aggregation of intracytoplasmic and extracytoplasmic hyaline globules (Figure 5).
In 2 of the hepatic AMLs, hyaline globules were related to areas of increased apoptosis.
The hyaline globules in the oncocytic cells were highlighted by PAS, diastase-PAS, and trichrome stains.
Microscopic examination confirmed the gross findings of cirrhosis with steatosis, single-cell necrosis, a periportal inflammatory infiltrate composed predominantly of lymphocytes, mild to moderate bile duct proliferation, and intracytoplasmic hyaline globules within scattered hepatocytes consistent with Mallory hyaline.
Occasionally, squamous metaplasia, hobnailing, small papillae, and cribriform patterns may be appreciated.[1] One case with a microcystic pattern and hyaline globules mimicking a yolk sac tumor was described.[3] The septa consist of loose fibrovascular connective tissue with a sparse inflammatory infiltrate.
The biopsy specimen contained a papillary neoplasm with marked nuclear pleomorphism and multiple intracytoplasmic and extracytoplasmic hyaline globules. The hyaline globules were highlighted with periodic acid--Schiff stain following digestion (Figure 1, A).