Juxtaphrenic peak sign is a radiographic sign seen in lobar collapse or after lobectomy of the lung.[1][2] This sign was first described by Katten and colleagues in 1980, and therefore, it is also called Katten's sign.[3] The juxtaphrenic peak is most commonly caused due to the traction from the inferior accessory fissure.[2][4] The prevalence of the juxtaphrenic peak sign increases gradually during the weeks after lobectomy of the lung.[5]

References

  1. ↑ Kattan, K. R.; Eyler, W. R.; Felson, B. (March 1980). "The juxtaphrenic peak in upper lobe collapse". Radiology. 134 (3): 763–765. doi:10.1148/radiology.134.3.7355230. ISSN 0033-8419. PMID 7355230. Retrieved 14 July 2021.
  2. 1 2 Kumaresh, Athiyappan; Kumar, Mitesh; Dev, Bhawna; Gorantla, Rajani; Sai, PM Venkata; Thanasekaraan, Vijayalakshmi (31 July 2015). "Back to Basics – 'Must Know' Classical Signs in Thoracic Radiology". Journal of Clinical Imaging Science. 5: 43. doi:10.4103/2156-7514.161977. ISSN 2156-7514. PMC 4541161. PMID 26312141.
  3. ↑ Cameron, D. C. (November 1993). "The juxtaphrenic peak (Katten's sign) is produced by rotation of an inferior accessory fissure". Australasian Radiology. 37 (4): 332–335. doi:10.1111/j.1440-1673.1993.tb00091.x. ISSN 0004-8461. PMID 8257331. Retrieved 14 July 2021.
  4. ↑ Davis, S. D.; Yankelevitz, D. F.; Wand, A.; Chiarella, D. A. (January 1996). "Juxtaphrenic peak in upper and middle lobe volume loss: assessment with CT". Radiology. 198 (1): 143–149. doi:10.1148/radiology.198.1.8539368. PMID 8539368.
  5. ↑ Konen, E.; Rozenman, J.; Simansky, D. A.; Yellin, A.; Greenberg, I.; Konen, O.; Hertz, M.; Itzchak, Y. (October 2001). "Prevalence of the juxtaphrenic peak after upper lobectomy". AJR. American Journal of Roentgenology. 177 (4): 869–873. doi:10.2214/ajr.177.4.1770869. ISSN 0361-803X. PMID 11566691. Retrieved 14 July 2021.
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