hiatus

(redirected from hiatus semilunaris)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.
Related to hiatus semilunaris: Ethmoidal bulla, Frontonasal duct, Ostiomeatal Unit

hiatus

Anatomy
1. a natural opening or aperture; foramen
2. a less common word for vulva

hiatus

[hī′ād·əs]
(anatomy)
A space or a passage through an organ.
(geology)
A gap in a rock sequence due to a lack of deposition of a bed or to erosion of beds.
References in periodicals archive ?
In this study, enlarged bulla ethmoidalis overlapping the hiatus semilunaris was noted in 24% of cases with CT PNS and 18% of the cases with DNE.
The sensitivity of diagnostic endoscopy for frontal recess, middle turbinate and bulla ethmoidalis was found as 91%, 84% and 76% respectively and for sphenoethmoidal recess hiatus semilunaris and middle turbinate as 80%, 53% and 67% respectively.
1,2) The most consistent drainage pattern of the ethmoid bulla is a path from the posterior medial aspect of the bulla medially into the hiatus semilunaris superior.
The parameters used for correlation were- Deviated Nasal Septum, Inferior Turbinate Hypertrophy, Middle Turbinate abnormalities, Concha Bullosa, Agger Nasi cells, Haller cells, Frontal recess, Infundibulum, Hiatus semilunaris, Uncinate process attachment, Intrasinus mucosal disease of Maxillary, Ethmoids, Frontal and Sphenoid detailed history, clinical examination and routine investigations were done for the patients.