A cadaveric study on accessory lobes of lungs and their bronchial branching pattern
Journal Title: International Journal of Medical Research and Review - Year 2018, Vol 6, Issue 1
Abstract
Background: An accessory lobe is a part of lung tissue separated off by an accessory fissure. It develops due to occasional monopodial branching of the stem bronchi. Different accessory lobes may be encountered in the human lungs e.g., azygos lobe, dorsal lobe, cardiac lobe and tracheal lobe. An accessory lobe may be confused with a lung abscess or bulla in x-ray and CT-scan, and its variable bronchial supply may cause difficulty during bronchoscopy. Hence, the present work has been carried out to study the accessory lobes and their bronchial branching pattern in human lungs. Materials and Methods: 92 adult human lungs (46 right and 46 left) were collected from the Department of Anatomy and Department of Forensic and State Medicine, Gauhati Medical College and Hospital, Guwahati, Assam and preserved in 10% formalin. The lungs were, then, examined for accessory lobes and their bronchial supply was noted following dissection from the hilum. Results: In the present study, the azygos lobes were present in 2.17% of cases and dorsal lobe was present in 1.08% of cases, all of which belonged to the right side. The azygos lobes were supplied by the apical segmental bronchus of the right superior lobe and dorsal lobe was supplied by the apical basal segmental bronchus and posterior basal segmental bronchus of the right inferior lobe. Conclusion: A detailed knowledge of the accessory lobes and their bronchial supply is important for correct radiological diagnosis and bronchoscopic examination of lungs.
Authors and Affiliations
Krishna Kanta Biswas, Satyajit Mitra, Joydev Sarma
Keywords
Related Articles
- EP ID EP344524
- DOI 10.17511/ijmrr. 2018.i01.04.
- Views 159
- Downloads 0
Pancytopenia- A clinicopathological analysis of 132 cases
Introduction: Pancytopenia is a challenging clinical entity for both clinicians and hematologists. The severity of pancytopenia and the underlying pathology determine the management and prognosis of these patients. Labor...
Retrospective analysis of poisoning cases admitted in a tertiary care hospital in North Eastern UP, India
Aims: Poisoning is a medical emergency associated with significant morbidity and mortality. This study was done to analyse the pattern of poisoning cases coming to our tertiary care centre located in the north eastern pa...
Effectiveness of selected Yoga postures and procedures for improvement in pulmonary functions in 8-14 year old children of Nasobronchial allergy
Introduction: Yoga postures can be effective way to regularize immune functions. Nasobronchial allergy appears when immune mechanisms go haywire and start behaving autonomously. Yoga has been used in many centers in Indi...
To study the laboratory profile of severe malaria in a tertiary care centre of North India
Introduction: Malaria ranks third among the major infectious diseases in causing deaths- after pneumococcal acute respiratory infections and tuberculosis. It is expected that by the turn of the century malaria would be t...
Study of factors affecting drug compliance in schizophrenia- cross sectional survey
Introduction: Schizophrenia is a condition characterized by delusions, hallucinations, disorganized behavior, disorganized thought, and negative symptoms. There is overwhelming evidence that antipsychotics can be effecti...