Duplicated right crus of the diaphragm

A cadaveric case report

Srinivasa Rao Sirasanagandla, Satheesha B. Nayak, Kumar M.R. Bhat, Sudarshan Surendran, Deepthinath Regunathan, Naveen Kumar, Surekha D. Shetty, Jyothsna Patil

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The lumbar part of the diaphragm arises from the lumbar vertebrae by right and left crura. The duplication of crura of the diaphragm is rarely reported in the past. During regular dissection classes to the medical students, we came across a case of duplicated right crus of the diaphragm. The right crus of the diaphragm was duplicated completely and presented two separate crura; medial right crus&lateral right crus. The medial right crus was attached to the anterolateral surfaces of the superior three lumbar vertebral bodies and intervertebral discs and merged with the anterior longitudinal ligament. The lateral right crus attached only to the intervertebral disc between the third and fourth lumbar vertebrae. These two crura bordered a retrocrural space in the inferior posterior mediastinum. The greater and lesser splanchnic nerves entered the abdomen by passing through this space. No duplication was observed in the left crus. The muscle fibres of medial right crus contributed to the formation of the esophageal opening. Knowledge of variations in the diaphragmatic crural anatomy is useful in the diagnosis of disease processes in the retrocrural space and also might help while performing the surgical repair of gastroesophageal reflux disease.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalJournal of the Canadian Chiropractic Association
Volume58
Issue number1
Publication statusPublished - 2014

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Diaphragm
Lumbar Vertebrae
Intervertebral Disc
Longitudinal Ligaments
Splanchnic Nerves
Mediastinum
Gastroesophageal Reflux
Medical Students
Abdomen
Dissection
Leg
Anatomy
Muscles

All Science Journal Classification (ASJC) codes

  • Chiropractics

Cite this

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title = "Duplicated right crus of the diaphragm: A cadaveric case report",
abstract = "The lumbar part of the diaphragm arises from the lumbar vertebrae by right and left crura. The duplication of crura of the diaphragm is rarely reported in the past. During regular dissection classes to the medical students, we came across a case of duplicated right crus of the diaphragm. The right crus of the diaphragm was duplicated completely and presented two separate crura; medial right crus&lateral right crus. The medial right crus was attached to the anterolateral surfaces of the superior three lumbar vertebral bodies and intervertebral discs and merged with the anterior longitudinal ligament. The lateral right crus attached only to the intervertebral disc between the third and fourth lumbar vertebrae. These two crura bordered a retrocrural space in the inferior posterior mediastinum. The greater and lesser splanchnic nerves entered the abdomen by passing through this space. No duplication was observed in the left crus. The muscle fibres of medial right crus contributed to the formation of the esophageal opening. Knowledge of variations in the diaphragmatic crural anatomy is useful in the diagnosis of disease processes in the retrocrural space and also might help while performing the surgical repair of gastroesophageal reflux disease.",
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Duplicated right crus of the diaphragm : A cadaveric case report. / Sirasanagandla, Srinivasa Rao; Nayak, Satheesha B.; Bhat, Kumar M.R.; Surendran, Sudarshan; Regunathan, Deepthinath; Kumar, Naveen; Shetty, Surekha D.; Patil, Jyothsna.

In: Journal of the Canadian Chiropractic Association, Vol. 58, No. 1, 2014, p. 39-44.

Research output: Contribution to journalArticle

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