WordNet

break into fissures or fine cracks
(anatomy) a long narrow slit or groove that divides an organ into lobes

PrepTutorEJDIC

(細長い)裂け目,亀裂(きれつ)(crack)

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1. 成人における胸水の画像検査 imaging of pleural effusions in adults
2. Anal fissure: Surgical management
3. 裂肛：臨床症状、診断、および予防 anal fissure clinical manifestations diagnosis prevention
4. Anal fissure: Medical management
5. クローン病の肛門合併症 perianal complications of crohn disease

English Journal

The empty azygos fissure.

Lenoir V1, Kohler R, Montet X.Author information 1Geneva University Hospital, Department of Radiology, Geneva, Switzerland.AbstractThe azygos fissure is typically visible on chest radiography as a right paramediastinal supernumerary line in projection of the right lung apex. The azygos vein, located at the bottom of the fissure, is visible as a teardrop-shaped opacity. The empty azygos fissure is a rare finding. It is the consequence of the displacement of the azygos vein out of the fissure with a close paramediastinal position. This phenomenon, related to lung collapse, has been described in the literature as the migration of the azygos vein due to various etiologies such as increased intrathoracic pressure, spontaneous or iatrogenic pneumothorax, or even during sudden development of kyphosis. In our clinical case, the empty azygos fissure was developed after drainage of a large right pleural effusion. An empty azygos fissure must therefore suggest a history of pulmonary atelectasis related to pneumothorax or large drained effusion.
Journal of radiology case reports.J Radiol Case Rep.2013 Apr 1;7(4):10-5. doi: 10.3941/jrcr.v7i4.1323. Print 2013 Apr.
The azygos fissure is typically visible on chest radiography as a right paramediastinal supernumerary line in projection of the right lung apex. The azygos vein, located at the bottom of the fissure, is visible as a teardrop-shaped opacity. The empty azygos fissure is a rare finding. It is the conse
PMID 23705047

The azygos lobe: an unusual anatomical observation with pathological and surgical implications.

Ndiaye A1, Ndiaye NB, Ndiaye A, Diop M, Ndoye JM, Dia A.Author information 1Anatomy and Organogenesis Laboratory, Faculty of Medicine, Cheikh Anta Diop University, BP 16659, Dakar-Fann, Senegal. lazanat@yahoo.frAbstractThe azygos lobe is a rare anomaly in broncho-pulmonary segmentation due to an unusual course of the azygos vein. Its radiological aspects are well known but there are few anatomical reports about its bronchial and vascular components. The authors describe the characteristic features in a particular case of the azygos lobe observed in the right lung after studying a fresh specimen and doing a casting of said specimen. This azygos lobe was in a position medial to the right upper lobe and above the hilum. It had the shape of an egg and was 5 cm high, 4 cm wide and 2 cm thick. The azygos fissure was of a vertical form. The lobe was ventilated by the posterior branch of the apical segmental bronchus (B1a). This latter was accompanied by two apical sub-segmental arteries (A1ai, A1aii) and the apical intersubsegmental vein (V1a). The new findings were that: first, the azygos lobe bronchus supplied a part of the right upper lobe; second, the passage of the azygos vein deformed the bronchus of the right upper lobe, and not that of the azygos lobe. This means that it was the right upper lobe, rather than the azygos lobe that was predisposed to the pathology. So, in excising this type of azygos lobe, particular precautions have to be taken to spare the bronchus of the azygos lobe that supplies the right upper lobe.
Anatomical science international.Anat Sci Int.2012 Sep;87(3):174-8. doi: 10.1007/s12565-011-0119-5. Epub 2011 Oct 28.
The azygos lobe is a rare anomaly in broncho-pulmonary segmentation due to an unusual course of the azygos vein. Its radiological aspects are well known but there are few anatomical reports about its bronchial and vascular components. The authors describe the characteristic features in a particular
PMID 22033832

Non-azygos accessory fissure in right upper lobe associated with superior and inferior accessory fissures in right lower lobe.

Muttikkal TJ1, Deng C.Author information 1Department of Radiology, University of Virginia, Charlottesville, Virginia, USA.AbstractAccessory 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.
Journal of clinical imaging science.J Clin Imaging Sci.2012;2:79. doi: 10.4103/2156-7514.105133. Epub 2012 Dec 27.
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 impo
PMID 23393635