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201. An Infected Urachal Cyst in a 4-Year-Old Girl Presenting with Recurrent Abdominal Pain. (Abstract)

An Infected Urachal Cyst in a 4-Year-Old Girl Presenting with Recurrent Abdominal Pain. Urachal cysts are remnants of urachal ducts and usually present when they get infected or undergo malignant transformation.A 4-year-old girl presented to the Emergency Department (ED) with intermittent abdominal pain, fever, dysuria, and umbilical swelling. She was diagnosed with an abscess related to an infected urachal cyst by ultrasound. The patient was treated with antibiotics, and the abscess (...) was drained by Interventional Radiology with ultrasound guidance. She recovered uneventfully and was discharged home. The urachal cyst was excised a month later. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Though urachal cysts are rare, it is important to consider this entity in the differential diagnosis of acute abdomen and recurrent abdominal pain in the ED setting.Copyright © 2019 Elsevier Inc. All rights reserved.

2019 Journal of Emergency Medicine

202. Incidence and Risk Factors for Meniscal Cyst After Meniscal Repair. (Abstract)

Incidence and Risk Factors for Meniscal Cyst After Meniscal Repair. To investigate the incidence of magnetic resonance imaging-confirmed cyst formation after meniscal repair and to analyze associated risk factors.This retrospective study included cases repaired arthroscopically with the all-inside (AI) technique (using suture anchors) and/or the inside-out (IO) technique between October 2008 and December 2014. A meniscal cyst was detected on T2 fat-suppressed magnetic resonance images. All (...) cases were divided into 3 groups according to the repair method (AI, IO, and combined technique). The incidence of radiographically confirmed meniscal cyst formation in each group and the associated risk factors (age, sex, AI device, medial meniscus, Tegner activity scale preinjury) were analyzed.A total of 102 menisci in 96 knees were evaluated. The mean follow-up period was 3.8 (range, 2-8) years. The mean patient age was 21.0 (range, 6-53) years. Thirty cases were in the AI group, 60 in the IO

2019 Arthroscopy

203. Lipid Peroxidation Drives Renal Cyst Growth <i>In Vitro</i> through Activation of TMEM16A. Full Text available with Trip Pro

Lipid Peroxidation Drives Renal Cyst Growth In Vitro through Activation of TMEM16A. Transepithelial chloride- secretion, through the chloride channels cystic fibrosis transmembrane conductance regulator (CFTR) and TMEM16A (anoctamin 1), drives cyst enlargement in polycystic kidney disease (PKD). Polycystic kidneys are hypoxic, and oxidative stress activates TMEM16A. However, mechanisms for channel activation in PKD remain obscure.Using tissue samples from patients with autosomal dominant (...) PKD, embryonic kidney cultures, and an MDCK in vitro cyst model, we assessed peroxidation of plasma membrane phospholipids in human and mouse polycystic kidneys. We also used electrophysiologic Ussing chamber and patch clamp experiments to analyze activation of TMEM16A and growth of renal cysts.Peroxidation of phospholipids in human and mouse kidneys as well as MDCK cysts in vitro is probably due to enhanced levels of reactive oxygen species. Lipid peroxidation correlated with increased cyst

2019 Journal of the American Society of Nephrology

204. Papillary glioblastoma exhibiting a neuroradiological cyst with a mural nodule: A case report. Full Text available with Trip Pro

Papillary glioblastoma exhibiting a neuroradiological cyst with a mural nodule: A case report. Glioblastomas are malignant, infiltrating gliomas classified as grade IV by the World Health Organization. Genetically, most glioblastomas do not exhibit the isocitrate dehydrogenase (IDH) 1/2 gene mutation and rarely harbor the 1p/19q co-deletion. Neuroradiologically, glioblastomas rarely form a cyst with a mural nodule lesion.In this study, a 78-year-old woman, with speech difficulty

2019 Medicine

205. Knee osteoarthritis patients with more subchondral cysts have altered tibial subchondral bone mineral density. Full Text available with Trip Pro

Knee osteoarthritis patients with more subchondral cysts have altered tibial subchondral bone mineral density. Subchondral bone cysts are a widely observed, but poorly understood, feature in patients with knee osteoarthritis (OA). Clinical quantitative computed tomography (QCT) has the potential to characterize cysts in vivo but it is unclear which specific cyst parameters (e.g., number, size) are associated with clinical signs of OA, such as disease severity or pain. The objective (...) of this study was to use QCT-based image-processing techniques to characterize subchondral tibial cysts in patients with knee OA and to explore relationships between proximal tibial subchondral cyst parameters and subchondral bone density as well as clinical characteristics of OA (alignment, joint space narrowing (JSN), OA severity, pain) in patients with knee OA.The preoperative knee of 42 knee arthroplasty patients was scanned using QCT. Patient characteristics were obtained, including OA severity, knee

2019 BMC Musculoskeletal Disorders

206. Transcranial endoscopic treatment of thalamic neuroepithelial cyst: case report and review of the literature. (Abstract)

Transcranial endoscopic treatment of thalamic neuroepithelial cyst: case report and review of the literature. Thalamic neuroepithelial cysts are rare, benign lesions. Thirteen cases have been published in eight articles. The most frequent symptoms are headache, hemiparesis, tremor and related signs of hydrocephalus such as gait disturbance, confusion, and Paranaud's syndrome. Surgical interventions include endoscopic fenestration, open surgery and stereotaxic biopsy or aspiration. We report (...) a case of a 63-year-old woman who had headache and right hemiparesis for 1 week, but no hydrocephalus. We treated her with transcranial neuronavigation-guided endoscopic complete resection. The patient recovered completely after cyst removal.

2019 British Journal of Neurosurgery

207. Differentiation between hepatic cystic echinococcosis types 1 and simple hepatic cysts: A retrospective analysis. Full Text available with Trip Pro

Differentiation between hepatic cystic echinococcosis types 1 and simple hepatic cysts: A retrospective analysis. This study aims to evaluate the clinic value of ultrasound, computed tomography (CT) and serological testing in the differentiation between hepatic Cystic Echinococcosis (CE) types 1 and simple hepatic cysts.Totally 50 patients with CE Types 1 and 50 patients with simple hepatic cysts were included. All patients examined by ultrasound, CT and serological testing respectively (...) %, positive likelihood ratio was 3.07, and negative likelihood ratio was 0.19. Disease prevalence was 50%, positive predictive value was 75.44%, and negative predictive value was 83.72%. Combined ultrasound and immunological test, the sensitivity and the specificity was 82% and 100% respectively. Combined CT and immunological test, the sensitivity the specificity was 70% and 82% respectively.In the differentiate diagnosis of CE Types 1 and simple hepatic cyst, ultrasound is better than CT with high

2019 Medicine

208. Intramedullary bronchogenic cyst in the foramen magnum region accompanied with syringomyelia: A case report and literature review. Full Text available with Trip Pro

Intramedullary bronchogenic cyst in the foramen magnum region accompanied with syringomyelia: A case report and literature review. Bronchogenic cysts refer to congenital anomalies derived from the primitive foregut. Spinal bronchogenic cysts are uncommon entities, and those occurring in the intramedullary sites are extremely rare. Bronchogenic cysts involving the foramen magnum region have only been described in 2 cases; however, intramedullary bronchogenic cysts with syringomyelia have not yet (...) was performed via a posterior midline approach. Under neurophysiological monitoring, the cyst was punctured, yielding gelatinous liquid. The dorsal part of the cystic wall was removed. One month postoperatively, the symptoms were resolved completely. Three months after operation, MRI showed no recurrence of the cyst and the syringomyelia disappeared.Intramedullary bronchogenic cysts with syringomyelia are extremely rare. Preoperative identification is challenging and definitive diagnosis depends

2019 Medicine

209. Utilizing real-time contrast medium to detect the fistula of giant spinal arachnoid cyst and treat with minimal invasive surgery. Full Text available with Trip Pro

Utilizing real-time contrast medium to detect the fistula of giant spinal arachnoid cyst and treat with minimal invasive surgery. Spinal arachnoid cysts are rare and have varied clinical manifestations depending on the affected spinal region and nerve roots. A complete cyst excision with fistula closure is the first choice of treatment. However, it might be difficult to localize the specific position of the fistula because previous images have no enhancements or the fistula is too tiny (...) to be detected.This case is a giant lumbar extradural arachnoid cyst. We administered a lumbar injection with contrast medium into subarachnoid space under digital subtraction angiography (DSA) and disclosed the fistula. Confirming the location of fistula enabled us to perform minimally invasive surgery to ligate the fistula. Surgical intervention for a spinal arachnoid cyst might encounter the problem of the formation of a postoperative cerebrospinal fluid (CSF) fistula. We propose the option of detecting

2019 BMC Surgery

210. Successful application of stereotactic radiosurgery for multiply recurrent Rathke's cleft cysts. (Abstract)

Successful application of stereotactic radiosurgery for multiply recurrent Rathke's cleft cysts. OBJECTIVERathke's cleft cysts (RCCs) are benign lesions of the sella turcica that usually come to neurosurgical attention due to compression of the optic apparatus (OA) and headaches. Treatment options for these lesions include observation, aspiration of cyst contents, or open resection of the cyst with the cyst wall. All of these options involve the potential for cyst recurrence or enlargement (...) on average for 7 months before intervention. The median number of surgeries prior to radiosurgery was 2. The average volume of lesion treated was 0.34 cm3. The median SRS dose was 12.5 Gy prescribed to the 50% isodose line with an average prescription coverage of 96.6%. The median dose to the OA was 5 Gy. At last follow-up, 3 of 5 cysts had completely regressed, 1 had regressed by more than 50% but was still present, and 1 was stable, with an overall mean follow-up duration of 34.2 months. There were

2019 Journal of Neurosurgery

211. A cross-sectional evaluation of outcomes of pediatric branchial cleft cyst excision. (Abstract)

A cross-sectional evaluation of outcomes of pediatric branchial cleft cyst excision. To examine complications following pediatric branchial cleft cyst excision by surgical specialty, demographics, and comorbid conditions.A retrospective review of the National Surgical Quality Improvement Program database was performed. Pediatric cases from January 1, 2015 through May 1, 2017 with a current procedural terminology code of 42810 (excision branchial cleft cyst or vestige, confined to skin (...) and subcutaneous tissues) or 42815 (excision branchial cleft cyst, vestige, or fistula, extending beneath subcutaneous tissues and/or into the pharynx) were included. Statistical analysis was performed to assess associations between complications and surgical specialty, demographics, and comorbidities.Of the 895 cases that met inclusion criteria, the median age was two years and there was an approximately equal number of males (46.8%) and females (53.2%). Forty-five patients (5.0%) experienced at least one 30

2019 International Journal of Pediatric Otorhinolaryngology

212. Intraosseous Epidermoid Cyst of the Radius. (Abstract)

Intraosseous Epidermoid Cyst of the Radius. We report the rare case of an intraosseous epidermoid cyst of the distal radius associated with an acute infection in a 79-year-old woman.Copyright © 2018 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.

2019 Journal of Hand Surgery - American

213. Comparison of Surgical Outcomes of Rectangular Lid Excision Versus Elliptical Excision for the Treatment of Epidermal Cysts. (Abstract)

Comparison of Surgical Outcomes of Rectangular Lid Excision Versus Elliptical Excision for the Treatment of Epidermal Cysts. Elliptical excision (EE) has been the standard surgical technique for the removal of epidermal cysts. However, it produces to create a long, linear wound causing cosmetic concerns.The purpose of the study was to evaluate the cosmetic outcomes and postoperative complications of rectangular lid excision (LE) compared with EE in epidermal cyst removals.Medical records (...) of patients who received surgical excision for epidermal cysts were retrospectively reviewed. Three dermatologists evaluated the postoperative photographs using 4-scale investigator's global assessment.Of the 123 lesions, EE and LE were performed in 58 and 65 lesions, respectively. Although the mean diameter of cysts was significantly greater in the LE group than in the EE group, the number of postoperative complications was not different between the 2 groups. A photographic assessment was performed in 11

2019 Dermatologic Surgery

214. Ganglion cyst of the temporomandibular joint with intradural extension: case report. (Abstract)

Ganglion cyst of the temporomandibular joint with intradural extension: case report. Intracranial extension of temporomandibular joint (TMJ) ganglion cysts is very rare. Two previously reported cases presented clinically due to effects on cranial nerves and had obvious association with the TMJ on imaging. To the authors' knowledge, intracranial extension of a TMJ ganglion cyst presenting with seizures and mimicking a primary brain tumor has not been previously reported. The patient underwent (...) resection of a presumptive primary cystic temporal lobe tumor, but the lesion had histopathological features of a nonneoplastic cyst with a myxoid content. He was followed with serial imaging for 5 years before regrowth of the lesion caused new episodes of seizures requiring a repeat operation, during which the transdural defect was repaired after the adjacent segment of the TMJ was curetted. A thorough review of all imaging studies and the histopathological findings from the repeat operation led

2019 Journal of Neurosurgery

215. The effectiveness of transoral marsupialization for lingual thyroglossal duct cysts - Twelve successfully treated cases at a single institution. (Abstract)

The effectiveness of transoral marsupialization for lingual thyroglossal duct cysts - Twelve successfully treated cases at a single institution. Lingual thyroglossal duct cysts (L-TGDCs) are rare and sometimes lethal owing to their association with asphyxia. We aimed to analyze our single institutional experience with L-TGDCs.Twelve L-TGDC cases treated at our institution between January 2010 and December 2017 were investigated.The male/female ratio was 6/6. The age at the diagnosis was 2  (...) ± 1.4 months (7 days to 6 months), and 3 patients were diagnosed in the neonatal period. The patients presented with stridor (n = 12; 100%), growth retardation (n = 5; 42%), apnea (n = 3; 25%), and vomiting (n = 1; 8.3%). Lateral X-rays were obtained in 8 cases (66.7%); a lingual mass was suspected in 7 (87.5%). Transoral marsupialization of the cyst was performed under direct vision in all cases. All cases were nasally and orally intubated using a laryngoscope, bronchoscope, or airway scope. The mean

2019 Journal of Pediatric Surgery

216. Location and Correlation of Acetabular Labral Tears and Paralabral Cysts Using Magnetic Resonance Imaging or Magnetic Resonance Arthrography in Patients With Femoroacetabular Impingement. Full Text available with Trip Pro

Location and Correlation of Acetabular Labral Tears and Paralabral Cysts Using Magnetic Resonance Imaging or Magnetic Resonance Arthrography in Patients With Femoroacetabular Impingement. To evaluate the prevalence and location of paralabral cysts and the correlation between the type of femoroacetabular impingement (FAI) and acetabular labral tears, as well as the location of the paralabral cysts.Patients who received a diagnosis of FAI syndrome using plain radiography, magnetic resonance (...) imaging or magnetic resonance arthrography, or computed tomographic arthrography from 2010 to 2015 were included in this study. The exclusion criteria were patients with arthritis (Tönnis grade 2 or greater) or dysplasia. We identified paralabral cysts and their location, size, configuration. Correlations between the type of FAI and labral tears and paralabral cysts were analyzed using the χ-square test.Among 506 patients with FAI, paralabral cysts were found in 51 patients (55 hips) and were located

2019 Arthroscopy

217. Obstructive hydrocephalus secondary to a perianeurysmal cyst: a case report. (Abstract)

Obstructive hydrocephalus secondary to a perianeurysmal cyst: a case report. Perianeurysmal cysts are an extremely rare association with cerebral aneurysms. We report the case of a 64 year old male who presented with obstructive hydrocephalus due to a perianeurysmal cyst. The cyst originated in association with a thrombosed, right-sided, terminal internal carotid artery aneurysm. Definitive management was offered with craniotomy and surgical clipping of the aneurysm together with endoscopic (...) cyst fenestration. The patient made a full recovery and was asymptomatic at 3-month follow-up. We review the literature and discuss the potential mechanisms of cyst formation.

2019 British Journal of Neurosurgery

218. Cranial vault unicameral bone cyst. (Abstract)

Cranial vault unicameral bone cyst. Unicameral bone cysts (UBC), also known as simple bone cysts, are common benign bone lesions filled with fluid, primarily occurring in children and adolescents. Although they can develop in any bone, UBCs usually affect the long bones.A 53 year old male patient was found incidentally to have a calvarian lesion in the parietal region overlying the superior sagittal sinus (SSS) ( Figure 1 ). The differential diagnosis included a large arachnoid granulation

2019 British Journal of Neurosurgery

219. Modified Mini-laparoscopic Surgery Optimized the Laparoscopic Decortication of Renal Cyst. (Abstract)

Modified Mini-laparoscopic Surgery Optimized the Laparoscopic Decortication of Renal Cyst. This study was to introduce the modified mini-laparoscopic surgery for renal cyst and investigate its advantages on operative time, cosmetic effect and pain reduction by comparison with laparo-endoscopic single site surgery (LESS) and conventional laparoscopic surgery.Between May 2015 and October 2018, 140 consecutive patients with benign renal cyst underwent laparoscopic decortication of renal cyst (...) ). Mean VAS pain scores in M group were significantly lower than that of LESS group and C group on postoperative day (POD) 1 and 3 (P<0.01). The SCAR scale of POD 30 in C group (6.25±1.0) was significantly higher than that in M group (0.77±0.59) and LESS group (0.98±0.70). The postoperative course was uneventful with no morbidity within 1to 6 months of follow-up.Modified mini-laparoscopic decortication of renal cyst have more comprehensive advantages comparing with LESS and conventional laparoscopic

2019 Urology journal Controlled trial quality: uncertain

220. Editorial Commentary: All-Inside Meniscal Repair Devices: Should We Cease and De-Cyst? Full Text available with Trip Pro

Editorial Commentary: All-Inside Meniscal Repair Devices: Should We Cease and De-Cyst? All-inside meniscal repair devices have the potential to simplify a technically difficult procedure, reduce the need for a skilled surgical assistant, reduce surgical times, improve cosmetic results, and decrease postoperative pain for the patient. On the other hand, the devices are more expensive than sutures, have technical issues of their own, and may have complications that are not associated with suture

2019 Arthroscopy

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