NTR, pulmo: pulmonary fissures

[GrieseAG]

Preferred term label: pulmonary fissures

Synonyms

Definition (free text, please give PubMed ID) A fissure is the infolding of visceral pleura that separates one lobe or part of a lobe from another; thus, the interlobar fissures are produced by two layers of visceral pleura. Supernumerary fissures usually separate segments rather than lobes. The azygos fissure, unlike the other fissures, is formed by two layers each of visceral and parietal pleura. All fissures (apart from the azygos fissure) may be incomplete. Fissures appear in CT images as linear opacities, normally 1 mm or less in thickness, that correspond in position and extent to the anatomic fissural separation of pulmonary lobes or segments. Qualifiers include minor, major, horizontal, oblique, accessory, anomalous, azygos, and inferior accessory.

PMID: 18195376

Parent term (use hpo.jax.org/app) Abnormal of the pleura, HP0002103

Diseases characterized by this term ? (e.g. Orphanet or OMIM number)

Your nano-attribution (ORCID) LMU: crapp, @mgriese, @katrinknoflach

[pnrobinson]

@mgriese, @katrinknoflach

Do we mean "Supernumerary pulmonary fissure" as the actual abnormality/label of this term?

[GrieseAG]

No, there are three different kind of fissures, as described in the definition: Interlobar fissures (produced by two layers of visceral pleura) Supernumerary fissures (separate segments rather than lobes) Azygos fissure (formed by two layers each of visceral and parietal pleura)

All need to be differentiated, but commonly it is searched for interlobar fissures, first.

[pnrobinson]

Discussion as follows. Todo -- definition

Abnormal pulmonary fissure morphology --Abnormal pulmonary fissure architecture --Abnormal pulmonary fissure count ----increased pulmonary fissure count ----reduced pulmonary fissure count

[pnrobinson]

Suggested definition Abnormal pulmonary fissure morphology def: An abnormal form or number of the pulmonary fissures. A fissure is the infolding of visceral pleura that separates one lobe or part of a lobe from another; thus, the interlobar fissures are produced by two layers of visceral pleura. The azygos fissure, unlike the other fissures, is formed by two layers each of visceral and parietal pleura. Supernumerary fissures usually separate segments rather than lobes. Supernumerary fissures usually separate segments rather than lobes.

[pnrobinson]

@GrieseAG Adding Supernumerary pulmonary fissure syn increased pulmonary fissure count def: Presence of a lung fissure that does not exist normally. Supernumerary fissures include the superior accessory fissure, the medial basal fissure, the left horizontal fissure, and the azygos fissure form supernumerary lobes.

[pnrobinson]

Adding Decreased pulmonary fissure count Lack of one or more of the normal pulmonary fissures.

@GrieseAG - please reopen if one of the above definitions needs more work!