HRCT evaluation of the accessory fissures of the lung

Yıldız, Altan; Gölpınar, Fulya; Çalıkoğlu, M. Erem; Duce, Meltem Nass; Özer, Caner; Apaydın, Feramuz Demir

doi:10.1016/s0720-048x(03)00137-2

Cited by 45 publications

(24 citation statements)

References 12 publications

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“…High-Resolution Computed Tomography (HRCT) demonstrates the accessory fissures at a higher frequency compared to conventional CT scan with thicker sections due to better spatial resolution as a result of narrow collimation and high-spatial resolution reconstruction algorithm. [34] Multi-Detector Computed Tomography (MDCT) has even higher sensitivity for detection of accessory fissures, with incidence of accessory fissures being similar to anatomical studies due to further thin cuts, faster speed, and volumetric acquisition. [5] Common accessory fissures include the inferior accessory fissure (demarcates the medial basal segment of the lower lobe), left minor fissure (demarcates the lingula), and superior accessory fissure (demarcates the superior segment of lower lobes).…”

Section: Discussionmentioning

confidence: 99%

Non-Azygos Accessory Fissure in Right Upper Lobe Associated with Superior and Inferior Accessory Fissures in Right Lower Lobe

Muttikkal

Deng

2012

Journal of Clinical Imaging Science

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Accessory fissures in the lungs are common congenital variations, usually detected as incidental findings in radiographs or CT scan. Accessory fissures can act as an anatomic barrier to the spread of inflammatory or neoplastic disease, as well as due to the variant anatomy, mimic lesions. It is important to recognize the presence of accessory fissures, as they affect surgical planning of pulmonary lobectomy and segmentectomy. Accessory fissure in the right upper lobe other than due to the anomalous course of azygos vein is very rare. We report a case of non-azygos accessory fissure, between the apical and the anterior segments of right upper lobe, along with superior and inferior accessory fissures in the right lower lobe.

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Section: Discussionmentioning

confidence: 99%

Non-Azygos Accessory Fissure in Right Upper Lobe Associated with Superior and Inferior Accessory Fissures in Right Lower Lobe

Muttikkal

Deng

2012

Journal of Clinical Imaging Science

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“…In anatomic studies, reported frequency of this fissure ranges from 5 to 14% on the left, 30% on the right and 12% bilaterally [1]. When a superior accessory fissure is present, the superior segment has been called the posterior or dorsal lobe.…”

Section: Discussionmentioning

confidence: 99%

“…When a superior accessory fissure is present, the superior segment has been called the posterior or dorsal lobe. The fissure lies at about the same level or slightly lower than the minor fissure [1]. …”

Section: Discussionmentioning

confidence: 99%

“…Several accessory fissures have been well described in time by the anatomists [1]. Accessory fissures can be described anatomically as clefts of various depth composed by two layers of visceral pleura.…”

Section: Introductionmentioning

confidence: 99%

“…They may be complete or incomplete differentiating a part of lung which is termed as an accessory lobe. They are more frequently encountered in fetal and neonatal lung specimens compared to adult ones [1]. Accessory fissures often go unappreciated or misinterpreted on plain x-ray films and computed tomographic (CT) scans [2].…”

Section: Introductionmentioning

confidence: 99%

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How many lobes do you see?

Karangelis

Tagarakis

Chlapoutakis

et al. 2011

J Cardiothorac Surg

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Accessory fissures represent a variation of the normal lung anatomy. Incomplete development or even the absence of the major or minor fissures can lead to confusion in distinguishing adjacent lobes. This report aims to present a rare intraoperative finding of an anatomic malformation of the right lung in a 19-year old male patient with recurrent pneumothorax who underwent a surgical repair. An accessory fissure which was separating the superior segment of the lower lobe from the basal segments gave to the whole lung the unique image of a four-lobed one. A profound knowledge of the accessory fissures, even if they are incidentally discovered, is of pivotal importance for the thoracic surgeon and leads to optimal operative assessment and strategic planning.

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Evaluation of interlobar and accessory pulmonary fissures on 64‐row MDCT

et al. 2010

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We aimed to describe the prevalence, morphology, and completeness of the oblique, horizontal, and accessory fissures on 64-row multidetector computed tomography (MDCT) scans. Three hundred and eighty-seven patients were included in this study. The lungs were scanned from apex to diaphragm using 1-mm collimation. Images were evaluated on a Philips workstation using the PACS system. Prevalence of the interlobar and accessory fissures and also incompleteness of the interlobar fissures was evaluated on axial, coronal, and sagittal planes. The frequencies of right oblique fissures, right horizontal fissures, and left oblique fissures were 99.7%, 94.8%, and 100%, and the percentage of incompleteness was 69.7%, 86.9%, and 48.3%, respectively. Accessory fissures were detected in 164 of the 387 patients (42.4%). Pulmonary fissures are well visualized on MDCT because of its capacity in evaluating the whole thorax with thin sections and at various planes. Fast-image acquisition in MDCT also accounts for less motion artifacts and high-image quality.

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HRCT evaluation of the accessory fissures of the lung

Cited by 45 publications

References 12 publications

Non-Azygos Accessory Fissure in Right Upper Lobe Associated with Superior and Inferior Accessory Fissures in Right Lower Lobe

Non-Azygos Accessory Fissure in Right Upper Lobe Associated with Superior and Inferior Accessory Fissures in Right Lower Lobe

How many lobes do you see?

Evaluation of interlobar and accessory pulmonary fissures on 64‐row MDCT

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