The Mesenteric Organ: New Anatomical Concepts and an Imaging-based Review on Its Diseases

Pria, H. R. F. Dalla; Torres, Ulysses S.; Velloni, Fernanda; Santiago, Rafael Augusto De Castro; Zacarias, Marina Silva; Silva, Luis F.D.; Tamamoto, F; Walsh, Dara; Atzingen, Augusto Castelli von; Coffey, J. Calvin; D'Ippólito, Giuseppe

doi:10.1053/j.sult.2019.02.001

Cited by 7 publications

(3 citation statements)

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“…The mesentery is one of the forgotten abdominal structures. The clinical, pathophysiological, and immunological functions of the mesentery as a distinct organ have been discussed increasingly in many recent reviews [ 1 , 31 ]. The clinical manifestation of mesenteropathies is variable [ 1 , 3 ].…”

Section: Discussionmentioning

confidence: 99%

Diagnostic Performance of Point Shear Wave Elastography (pSWE) Using Acoustic Radiation Force Impulse (ARFI) Technology in Mesenteric Masses: A Feasibility Study

et al. 2022

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Purpose: To evaluate the diagnostic performance of ultrasound point shear wave elastography (pSWE) using acoustic radiation force impulse (ARFI) technology in different benign and malignant mesenteric masses (MMs). Methods: A total of 69 patients with MMs diagnosed from September 2018 to November 2021 were included retrospectively in the study. The inclusion criteria were (1) an MM over 1 cm; (2) valid ARFI measurements; and (3) confirmation of the diagnosis of an MM by histological examination and/or clinical and radiological follow-up. To examine the mean ARFI velocities (MAVs) for potential cut-off values between benign and malignant MMs, a receiver operating characteristics analysis was implemented. Results: In total, 37/69 of the MMs were benign (53.6%) and 32/69 malignant (46.4%). Benign MMs demonstrated significantly lower MAVs than mMMs (1.59 ± 0.93 vs. 2.76 ± 1.01 m/s; p < 0.001). Selecting 2.05 m/s as a cut-off value yielded a sensitivity and specificity of 75.0% and 70.3%, respectively, in diagnosing malignant MMs (area under the curve = 0.802, 95% confidence interval 0.699–0.904). Conclusion: ARFI elastography may represent an additional non-invasive tool for differentiating benign from malignant MMs. However, to validate the results of this study, further prospective randomized studies are required.

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Section: Discussionmentioning

confidence: 99%

Diagnostic Performance of Point Shear Wave Elastography (pSWE) Using Acoustic Radiation Force Impulse (ARFI) Technology in Mesenteric Masses: A Feasibility Study

et al. 2022

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“…Hemangiomas are benign proliferating vascular malformations, characterized by abnormal proliferation of blood vessels and mesenchymal tissue. They may be congenital or appear soon after birth [ 1 ]. Hemangiomas are often solitary lesions.…”

Section: Introductionmentioning

confidence: 99%

Cavernous hemangioma of the mesorectum involving the rectum: a rare case report

Zhang

2021

BMC Gastroenterol

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Background Gastrointestinal hemangiomas are very rare and are even rarer in the mesorectum. It is not clear whether mesorectal hemangiomas originate in the bowel wall or in the mesorectum. For clinicians, to correctly identify the imaging features of mesorectal hemangiomas is important. Case presentation We herein describe a case of a 31-year-old male that presented with hematochezia and sensation of rectal tenesmus. Both the rectal MRI and contrast-enhanced CT scan of the whole abdomen indicated rectal wall thickening, marked dilatation, and tortuous vessels around the rectum. In addition, a contrast-enhanced portal venous phase CT scan showed the dilation of portal vein, splenic vein and inferior mesenteric vein. The dilated inferior mesenteric vein extending down to the mesorectum, and became marked dilatation and tortuous vessels around the rectum. The patient underwent laparoscopic surgical resection of the mesorectal lesion and the involved portions of the rectum. The surgical samples underwent pathological analysis, and a diagnosis of cavernous hemangioma was confirmed. Seven days after surgery, the patient was discharged without postoperative complications. Conclusions This case highlights the imaging features of mesorectal hemangiomas. In addition, in this current case, the mesorectal hemangioma more likely originated in the mesorectum.

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Section: Introductionmentioning

confidence: 99%

Cavernous hemangioma of the mesorectum involving the rectum: A rare case report

Zhang

2020

Preprint

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Background: Gastrointestinal hemangiomas are very rare and are even rarer in the mesentery. It is not known whether they originate in the bowel wall or the mesentery currently. Some studies have described mesenteric hemangiomas that originate in the bowel wall and extend into the mesentery. We herein describe a case of cavernous hemangioma of the mesorectum. Case presentation: A 31-year-old male presented with hematochezia and sensation of rectal tenesmus. Both the rectal MRI and contrast-enhanced CT scan of the whole abdomen indicated rectal wall thickening, marked dilated and tortuous vessels around the rectum. In addition, an anomalous vein had arisen from the superior mesenteric vein, extending down to the mesorectum. The patient underwent laparoscopic surgical resection of the mesorectal lesion and the involved portions of the rectum. The surgical samples underwent pathological analysis, and a diagnosis of mesenteric cavernous hemangioma was confirmed. Seven days after surgery, the patient was discharged without postoperative complications.Conclusion: Mesenteric hemangiomas are extremely rare tumors. In our present case, an anomalous vein had arisen from the superior mesenteric vein, extending down to the mesorectum. This findings suggest that the mesenteric hemangioma more likely originated in the mesentery.

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The Mesenteric Organ: New Anatomical Concepts and an Imaging-based Review on Its Diseases

Cited by 7 publications

References 50 publications

Diagnostic Performance of Point Shear Wave Elastography (pSWE) Using Acoustic Radiation Force Impulse (ARFI) Technology in Mesenteric Masses: A Feasibility Study

Diagnostic Performance of Point Shear Wave Elastography (pSWE) Using Acoustic Radiation Force Impulse (ARFI) Technology in Mesenteric Masses: A Feasibility Study

Cavernous hemangioma of the mesorectum involving the rectum: a rare case report

Cavernous hemangioma of the mesorectum involving the rectum: A rare case report

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