Morphology of caudate and quadrate lobes of liver

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Date: Feb. 6, 2017
Publisher: Akshantala Enterprises Private Limited
Document Type: Report
Length: 3,507 words
Lexile Measure: 1340L

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Abstract :

BACKGROUND Anatomy of caudate lobe is complex and although it is readily visualised on abdominal imaging like CT or sonography, it shows wide range of variations in size and shapes. The quadrate lobe also shows considerable variations in size, shape and the presence of pons-hepatis and they may mimic some clinical conditions posing difficulties in interpretation and diagnosis. Aims- Anatomy of Caudate lobe is complex and may cause difficulties in the interpretation of cross-sectional images. The detailed anatomy of the caudate and the quadrate lobes continue to be elusive to anatomist, radiologist and the surgeons for want of a precise description of these two lobes of the liver. MATERIALS AND METHODS 80 apparently normal livers available in the department were utilised in the present study. The length and width of caudate and quadrate lobes were measured with the help of digital Vernier calliper. The various shapes of these lobes were recorded. In the caudate lobe, the presence and prominence of papillary process, the fissures and the pattern and thickness of caudate process and in quadrate lobe the dimensions, presence of accessory fissures, projections and porta hepatis were recorded and photographed. RESULTS Caudate Lobe: Avg. height was 4.78 cm; avg. width was 2.54 cm; prominent papillary process was found in 8.75% livers; incidence of fissures on CL was 43.75%; avg. thickness of caudate process was 2 mm. Quadrate Lobe: Avg. height was 5.48 cm; avg. width was 2.84 cm; incidence of fissures was 56.25%; and incidence of pons hepatis was 38.75%. CONCLUSION The findings of the present work have been compared with that of other workers. The incidence of pons hepatis, presence of papillary process are at variance from those reported by previous workers. It is expected that the findings of the present work would be of help to the surgeons doing hepatobiliary surgeries, liver transplant, and the radiologists in proper interpretation of USG and CT. KEYWORDS Caudate Lobe, Quadrate Lobe, Papillary Process, Caudate Process, Pons hepatis, Accessory Fissures.

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Gale Document Number: GALE|A539258666