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Diagnostic and Interventional Imaging Feb 2015The retroperitoneum is a space situated behind the parietal peritoneum and in front of the transversalis fascia. It contains further spaces that are separated by the...
The retroperitoneum is a space situated behind the parietal peritoneum and in front of the transversalis fascia. It contains further spaces that are separated by the fasciae, between which communication is possible with both the peritoneal cavity and the pelvis, according to the theory of interfascial spread. The perirenal space has the shape of an inverted cone and contains the kidneys, adrenal glands, and related vasculature. It is delineated by the anterior and posterior renal fasciae, which surround the ureter and allow communication towards the pelvis. At the upper right pole, the perirenal space connects to the retrohepatic space at the bare area of the liver. There is communication between these two spaces through the Kneeland channel. The anterior pararenal space contains the duodenum, pancreas, and the ascending and descending colon. There is free communication within this space, and towards the mesenteries along the vessels. The posterior pararenal space, which contains fat, communicates with the preperitoneal space at the anterior surface of the abdomen between the peritoneum and the transversalis fascia, and allows communication with the contralateral posterior pararenal space. This space follows the length of the ureter to the pelvis, which explains the communication between these areas and the length of the pelvic fasciae.
Topics: Humans; Magnetic Resonance Imaging; Retroperitoneal Space; Tomography, X-Ray Computed
PubMed: 25547251
DOI: 10.1016/j.diii.2014.06.015 -
Revista Espanola de Enfermedades... Sep 2018Schwannoma is a mesenchymal tumor that is mainly located in the peripheral nerves or the central nervous system. Its retroperitoneal location is rare and commonly...
Schwannoma is a mesenchymal tumor that is mainly located in the peripheral nerves or the central nervous system. Its retroperitoneal location is rare and commonly asymptomatic. Thus, it is usually diagnosed when imaging tests are performed for other purposes. The clinical course of Schwannoma is benign but it also has malignant potential. Therefore, surgical resection is the treatment of choice. The definitive diagnosis is anatomopathological. In this context, we present a patient with retroperitoneal Schwannoma.
Topics: Humans; Neurilemmoma; Retroperitoneal Neoplasms; Retroperitoneal Space
PubMed: 29931989
DOI: 10.17235/reed.2018.5569/2018 -
Chirurgia (Bucharest, Romania : 1990) 2021The world of surgery has been concerned with idiopathic retroperitoneal fibrosis (RPF) ever since 1948, when J. K. Ormond published the first case of ureteral stenosis... (Review)
Review
The world of surgery has been concerned with idiopathic retroperitoneal fibrosis (RPF) ever since 1948, when J. K. Ormond published the first case of ureteral stenosis following a retroperitoneal scleroinflammatory process due to unknown reasons. Until 1960, 82 such cases were reported in the literature. The authors present two new cases of RPF, located exclusively in the pelvic (subperitoneal) compartment of the retroperitoneal space. The literature on this subject is reviewed, current etiological theories are mentioned and treatment opportunities are discussed.
Topics: Humans; Pelvis; Retroperitoneal Fibrosis; Retroperitoneal Space
PubMed: 33638333
DOI: 10.21614/chirurgia.116.1.117 -
Cancer Control : Journal of the Moffitt... 2005The evaluation and treatment of retroperitoneal sarcomas are challenging because the tumors are relatively rare and frequently present with advanced disease in an... (Review)
Review
BACKGROUND
The evaluation and treatment of retroperitoneal sarcomas are challenging because the tumors are relatively rare and frequently present with advanced disease in an anatomically complex location.
METHODS
We reviewed the literature on experience in the management of retroperitoneal sarcomas, and we present our own experience in the treatment of these tumors.
RESULTS
The identification of prognostic factors other than the adequacy of resection has been inconsistent. Due to a lack of associated symptoms, retroperitoneal sarcomas smaller than 5 cm are rare. Computed tomography is the most useful tool in the evaluation of retroperitoneal tumors. Surgery, radiation therapy, and chemotherapy are treatment options, but the most important factor in the treatment of primary tumors is complete surgical resection. The role of neoadjuvant and adjuvant therapies is not defined and should be considered within the context of clinical trials.
CONCLUSIONS
Early referral of patients with retroperitoneal soft tissue tumors will help to ensure that they will receive the benefits of multidisciplinary evaluation and treatment of their disease and ready access to clinical trials.
Topics: Antineoplastic Agents; Humans; Liver Neoplasms; Lung Neoplasms; Neoplasm Recurrence, Local; Prognosis; Radiotherapy; Retroperitoneal Neoplasms; Retroperitoneal Space; Sarcoma
PubMed: 15668651
DOI: 10.1177/107327480501200105 -
Laeknabladid Jun 2023A 50-year old male presented to our emergency department with sudden abdominal pain. Upon arrival he was diaphoretic, pale and tachycardic. A CT showed retroperitoneal...
A 50-year old male presented to our emergency department with sudden abdominal pain. Upon arrival he was diaphoretic, pale and tachycardic. A CT showed retroperitoneal hemorrhage with suspected tumor at the left adrenal gland. He was quickly stabilized with intravenous fluids and blood transfusion. Rebleed occurs roughly a week after discharge and a new CT showed a visceral pseudoaneurysm from the left middle adrenal artery. The pseudoaneurysm was embolized and the patient discharged in good condition. Follow-up MRI depicted reabsorption of the hematoma and no adrenal tumor. Thus, the etiology of the previous retroperitonal hemorrhage is considered spontaneous.
Topics: Male; Humans; Middle Aged; Aneurysm, False; Retroperitoneal Space; Hemorrhage; Hematoma; Adrenal Glands
PubMed: 37233620
DOI: 10.17992/lbl.2023.05.744 -
RoFo : Fortschritte Auf Dem Gebiete Der... Oct 2020Retroperitoneal fibrosis is a rare disease with an incidence of 0-1/100 000 inhabitants per year and is associated with chronic inflammatory fibrosis of the... (Review)
Review
BACKGROUND
Retroperitoneal fibrosis is a rare disease with an incidence of 0-1/100 000 inhabitants per year and is associated with chronic inflammatory fibrosis of the retroperitoneum and the abdominal aorta. This article sheds light on the role of radiological imaging in retroperitoneal fibrosis, names various differential diagnoses and provides an overview of drug and surgical treatment options.
METHODS
A literature search for the keywords "retroperitoneal fibrosis" and "Ormond's disease" was carried out in the PubMed database between January 1, 1995 and December 31, 2019 (n = 1806). Mainly original papers were selected, but also reviews, in English and German language, with a focus on publications in the last 10 years, without excluding older publications that the authors believe are relevant to the topic discussed in the review (n = 40).
RESULTS AND CONCLUSION
Ormond's disease is a rare but important differential diagnosis for nonspecific back and flank pain. Imaging diagnostics using CT or MRI show a retroperitoneal mass, which must be differentiated from lymphoma, sarcoma, multiple myeloma and Erdheim-Chester disease. Patients have an excellent prognosis under adequate therapy. FDG-PET/CT or FDG-PET/MRT should be considered as potential modalities, as hybrid imaging can evaluate both the morphological changes and the inflammation.
KEY POINTS
· Ormond's disease is a differential diagnosis for nonspecific back and flank pain.. · Radiological imaging is essential and the gold standard in the diagnosis and follow-up of RPF.. · Patients have an excellent prognosis under adequate therapy..
CITATION FORMAT
· Peisen F, Thaiss WM, Ekert K et al. Retroperitoneal Fibrosis and its Differential Diagnoses: The Role of Radiological Imaging. Fortschr Röntgenstr 2020; 192: 929 - 936.
Topics: Aorta, Abdominal; Back Pain; Diagnosis, Differential; Flank Pain; Humans; Magnetic Resonance Imaging; Retroperitoneal Fibrosis; Retroperitoneal Space; Tomography, X-Ray Computed
PubMed: 32698236
DOI: 10.1055/a-1181-9205 -
Fertility and Sterility Oct 2021
Topics: Algorithms; Female; Humans; Pregnancy; Pregnancy, Ectopic; Retroperitoneal Space
PubMed: 34489085
DOI: 10.1016/j.fertnstert.2021.08.012 -
Anaesthesia Feb 1983Pneumoretroperitoneum is rare, but sometimes seen in association with pneumoperitoneum as a result of barotrauma to the lungs. However, there have only been two previous...
Pneumoretroperitoneum is rare, but sometimes seen in association with pneumoperitoneum as a result of barotrauma to the lungs. However, there have only been two previous cases of pneumoretroperitoneum without pneumoperitoneum following barotrauma. This case discusses several of the possible mechanisms by which this could occur and what associated signs, especially on chest X-ray, one should look for to confirm the aetiology of gas in the retroperitoneal space.
Topics: Adolescent; Emphysema; Female; Humans; Mediastinal Emphysema; Retroperitoneal Space
PubMed: 6829879
DOI: 10.1111/j.1365-2044.1983.tb13932.x -
Veterinary Surgery : VS Nov 2016To develop and describe a laparoscopic retroperitoneal access technique, investigate working space establishment, and describe the surgical anatomy in the...
OBJECTIVE
To develop and describe a laparoscopic retroperitoneal access technique, investigate working space establishment, and describe the surgical anatomy in the retroperitoneal space as an initial step for clinical application of retroperitoneal laparoscopy in dogs.
STUDY DESIGN
Cadaveric and experimental study.
ANIMALS
Cadaveric (n=8) and healthy (n=6) adult dogs.
METHODS
The retroperitoneal access technique was developed in 3 cadavers based on the human technique and transperitoneal observation. Its application and working space establishment with carbon dioxide (CO ) insufflation alone was evaluated in 5 cadavers by observing with a transperitoneal telescope and in 6 live dogs by repeated computed tomography (CT) scans at pressure of 0, 5, 10, and 15 mmHg. Recordings of retroperitoneoscopy as well as working space volume and linear dimensions measured on CT images were analyzed.
RESULTS
Retroperitoneal access and working space establishment with CO insufflation alone were successfully performed in all 6 live dogs. The only complication observed was in 1 dog that developed subclinical pneumomediastinum. As pressure increased, working space was established from the ipsilateral to the contralateral side, and peritoneal tearing eventually developed. Working space volume increased significantly from 5 mmHg and linear dimensions increased significantly from 0 to 10 mmHg. With pneumo-retroperitoneum above 5 mmHg, retroperitoneal organs, including kidneys and adrenal glands, were easily visualized.
CONCLUSION
The retroperitoneal access technique and working space establishment with CO insufflation starting with 5 mmHg and increasing to 10 mmHg provided adequate working space and visualization of retroperitoneal organs, which may allow direct access for retroperitoneal laparoscopy in dogs.
Topics: Animals; Cadaver; Carbon Dioxide; Dogs; Insufflation; Laparoscopy; Male; Pilot Projects; Pressure; Retroperitoneal Space
PubMed: 27731512
DOI: 10.1111/vsu.12571 -
Frontiers in Endocrinology 2022The interest on partial adrenalectomy has steadily increased over the past twenty years. Adrenal pathologies are mostly benign, making an organ-preserving procedure... (Review)
Review
The interest on partial adrenalectomy has steadily increased over the past twenty years. Adrenal pathologies are mostly benign, making an organ-preserving procedure attractive for many patients. The introduction of minimally invasive techniques played probably an important role in this process because they transformed a complex surgical procedure, related to the difficult access to the retroperitoneal space, into a simple operation improving the accessibility to this organ. In this review we summarize the role of partial retroperitoneoscopic adrenalectomy over the years and the current indications and technique.
Topics: Adrenal Gland Neoplasms; Adrenalectomy; Humans; Retroperitoneal Space
PubMed: 35418944
DOI: 10.3389/fendo.2022.855326