Obliquely Oriented Superior Accessory Fissure of the Lower Lobe of the Lung: CT Evaluation of the Normal Appearance and Effect on the Distribution of Parenchymal and Pleural Opacities

Background: Fissures of lungs facilitate the movement of lobes which helps in expansion of lungs during breathing. The fissures may be complete, incomplete or absence. Sometime the accessory fissures may also present. Awareness of variations is essential during segmental resections as well as during radiological interpretation of lungs. Hence, the present study was aimed to study the morphological variations in fissures and lobes. Material and Methods: This study was consisted of sixty nine human lungs with irrespective of sex which were available in the department of anatomy of various medical colleges. All lung specimens were carefully observed and recorded for the presence of any variations in fissures and lobes. Results: The present study revealed that the absence of horizontal fissure was observed in 7.89%, while no specimen showed absence of oblique fissure on both sides. 35.48% of left lungs had incomplete oblique fissure compared to 28.95% of the right lungs. In addition, 22.58% of right lungs and 23.68% of left lungs showed presence of accessory fissure and lobes. From above, the incomplete and absent horizontal fissure was the most common abnormalities observed in this study. The accessory fissures were more common in lower lobe of right lung whereas in left lungs it was more common in upper lobe. Conclusion: The present study showed the wide range of variations in fissures and lobes of lungs. The knowledge of variations in morphology of lungs would be helpful for clinical diagnosis and pulmonary surgical procedures.

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

Journal of Clinical Imaging Science ◽

10.4103/2156-7514.105133 ◽

2012 ◽

Vol 2 ◽

pp. 79 ◽

Cited By ~ 1

Author(s):

Thomas Jose Eluvathingal Muttikkal ◽

Chunli Deng

Keyword(s):

Incidental Findings ◽

Surgical Planning ◽

Lower Lobe ◽

Azygos Vein ◽

Neoplastic Disease ◽

Pulmonary Lobectomy ◽

Anterior Segments ◽

The Right ◽

Variant Anatomy ◽

Accessory Fissure

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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Normal appearance and size of the diaphragmatic crura in children: CT evaluation

Pediatric Radiology ◽

10.1007/bf01396207 ◽

1996 ◽

Vol 26 (11) ◽

pp. 811-814 ◽

Cited By ~ 4

Author(s):

Margaret Brengle ◽

Mervyn D. Cohen ◽

Barry Katz

Keyword(s):

Normal Appearance ◽

Ct Evaluation

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Perioperative Identification of an Accessory Fissure of the Right Lung

Case Reports in Pulmonology ◽

10.1155/2015/954769 ◽

2015 ◽

Vol 2015 ◽

pp. 1-4 ◽

Cited By ~ 1

Author(s):

Yannick Taverne ◽

Gert-Jan Kleinrensink ◽

Peter de Rooij

Keyword(s):

Surgical Intervention ◽

Functional Anatomy ◽

Lower Lobe ◽

Clinical Importance ◽

Anatomical Variations ◽

Surgical Anatomy ◽

X Rays ◽

Profound Knowledge ◽

The Right ◽

Accessory Fissure

Anatomical variations of lungs are common in clinical practice; however, they are sometimes overlooked in routine imaging. Surgical anatomy of the lung is complex and many variations are known to occur. A defective pulmonary development gives rise to variations in lobes and fissures. Morphological presentation is of clinical importance and profound knowledge of the organogenesis and functional anatomy is imperative for the interpretation and evaluation of lung pathophysiology and subsequent surgical intervention. However, appreciating them on radiographs and CT scans is difficult and they are therefore often either not identified or completely misinterpreted. As presented in this case report, an accessory fissure separating the superior segment of the right lower lobe from its native lobe was seen perioperatively and could only retrospectively be defined on X-rays and CT scan. It is imperative to keep in mind that accessory fissures can be missed on imaging studies and thus can make the surgical procedure more challenging.

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Inhalation of Pin - A Rare Case Report

International Journal of Pharmacology Phytochemistry and Ethnomedicine ◽

10.18052/www.scipress.com/ijppe.1.23 ◽

2015 ◽

Vol 1 ◽

pp. 23-26

Author(s):

Sandeep Kumar Kar ◽

Deepanwita Das ◽

Chaitali Sen ◽

Riju Bhattacharya ◽

Asit Munsi

Keyword(s):

Rare Case ◽

Main Bronchus ◽

Lower Lobe ◽

Basal Segment ◽

X Ray ◽

Rare Case Report ◽

Chest X Ray ◽

The Right ◽

Lung Ct ◽

Lung Ct Scan

A boy aged 1year presented with persistent cough, sputum and fever for last two months which is did not subside in spite of empirical mediacal therapy. For last 15 days symptoms started to aggravate and not responding to medical management. Chest X-ray showed a pin in the right main bronchus with more radiolucency of right lung. CT scan of chest revealed radiodense linear opacity in the right lower lobe primary and secondary bronchus with partial collapse consolidation of right lower lobe medial basal and lateral basal segment. Rigid bronchoscopic removal was tried but failed. Ultimately thoracotomy was done to remove the foreign body.

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