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https://www.readbyqxmd.com/read/28420320/pediatric-non-vestibular-schwannoma
#1
Cory Broehm, Alyaa Al-Ibraheemi, Karen J Fritchie
While the clinicopathologic features of pediatric vestibular schwannomas, often in the context of neurofibromatosis type 2 (NF2), have been well studied, there is less data regarding the characteristics of pediatric non-vestibular schwannomas (NVS). Additionally, the rate of loss of SMARCB1/INI1 expression in this population has not been systematically evaluated. Our institutional archives were searched for cases of NVS arising in patients 18 years or younger. Clinicopathologic features including SMARCB1/INI1 status were assessed for each case...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28416299/malignant-mesothelioma-of-the-tunica-vaginalis-testis-outcomes-following-surgical-management-beyond-radical-orchiectomy
#2
Pedro Recabal, Barak Rosenzweig, Wassim M Bazzi, Brett S Carver, Joel Sheinfeld
OBJECTIVE: To describe clinical management and outcomes of a cohort of patients with malignant mesothelioma of the tunica vaginalis testis (MMTVT) who received treatments beyond radical orchiectomy. METHODS: Patients with confirmed MMTVT at a single tertiary-care institution were identified. Treatments, pathologic outcomes, and survival were recorded. Prognostic variables associated with survival were analyzed with a Cox proportional hazards model and Kaplan-Meier curves...
April 14, 2017: Urology
https://www.readbyqxmd.com/read/28413377/mimicry-of-appendicitis-symptomatology-in-congenital-anomalies-and-diseases-of-the-genitourinary-system-and-pregnancy
#3
REVIEW
Amanda Dalpiaz, Jason Gandhi, Noel L Smith, Gautam Dagur, Richard Schwamb, Steven J Weissbart, Sardar Ali Khan
INTRODUCTION: Appendicitis is a prevailing cause of acute abdomen, but is often difficult to diagnose due to its wide range of symptoms, anatomical variations, and developmental abnormalities. Urological disorders of the genitourinary tract may be closely related to appendicitis due to the close proximity of the appendix to the genitourinary tract. This review provides a summary of the urological complications and simulations of appendicitis. Both typical and urological symptoms of appendicitis are discussed, as well as recommended diagnostic and treatment methods...
January 2017: Current Urology
https://www.readbyqxmd.com/read/28409377/laparoscopic-radical-antegrade-modular-pancreatosplenectomy-for-left-sided-pancreatic-cancer-using-the-ligament-of-treitz-approach
#4
Yusuke Ome, Kazuki Hashida, Mitsuru Yokota, Yoshio Nagahisa, Okabe Michio, Kazuyuki Kawamoto
BACKGROUND: Laparoscopic distal pancreatectomy (Lap-DP) for benign lesions or those with low malignant potential has been proven safe and effective, and its performance is now widespread [1-3]. Lap-DP for left-sided pancreatic cancer (PC) is also being increasingly performed. According to some reports, Lap-DP has superior short-term outcomes (blood loss, postoperative hospital stay) and comparable oncological outcomes and overall survival with those of open distal pancreatectomy (Op-DP) [4-6]...
April 13, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28404984/giant-iliopsoas-abscess-caused-by-morganella-morganii
#5
Mikio Nakajima, Masamitsu Shirokawa, Yasuhiko Miyakuni, Tomotsugu Nakano, Hideaki Goto
BACKGROUND While uncommon, iliopsoas abscesses can become the underlying cause of a fever of unknown origin. Even in such cases, it is considered rare for an iliopsoas abscess to extend into the subcutaneous space. CASE REPORT A 74-year-old woman with a history of schizophrenia was referred to our hospital with a high-grade fever. The patient was unaware of her febrile status prior to admission. There was no previous hospital admission. Examination revealed a non-tender mass in the lower right back that the patient had been aware of for approximately 1 month...
April 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28370243/sonographic-evaluation-of-renovascular-hypertension-in-the-pediatric-population-state-of-the-art
#6
REVIEW
Anat Ilivitzki, Luda Glozman, Rebeca Lopez Alfonso, Amos Ofer, Nira Beck Razi, Mika Rotman Shapira
Hypertension in children affects 2-5% of the pediatric population. Identifying secondary causes of hypertension is crucial, as some of these entities may be treatable. Renovascular hypertension accounts for 5-10% of the secondary causes of hypertension in children and is mainly related to fibromuscular dysplasia and neurofibromatosis type 1. Ultrasonographic evaluation of the kidneys, including Doppler interrogation, is the recommended primary screening tool. A comprehensive study of the upper abdomen and retroperitoneum allows for identification of additional underlying etiologies...
March 28, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28352488/rare-case-of-a-well-differentiated-paratesticular-sarcoma-of-the-spermatic-cord-in-a-60-year-old-patient
#7
Marwen Benna, Semia Zarraâ, Asma Belaïd, Aziz Cherif, Lotfi Kochbati, Mohammed Chebil, Farouk Benna
Introduction. Liposarcomas are tumors that occur mostly in the retroperitoneum. Of all liposarcomas only 3 to 7% are found in the paratesticular region. The spermatic cord is the main site of origin in these cases. The patients ages range from 50 to 60 years. This malignant disease can result in a loss of fertility aside from life-threatening sequelae. Case. We present a case of a liposarcoma of the paratesticular region. A 60-year-old man was referred with a painless mass in the scrotum and the right inguinal region...
2017: Case Reports in Urology
https://www.readbyqxmd.com/read/28351781/geis-guidelines-for-gastrointestinal-sarcomas-gist
#8
REVIEW
Andrés Poveda, Xavier García Del Muro, Jose Antonio López-Guerrero, Ricardo Cubedo, Virginia Martínez, Ignacio Romero, César Serrano, Claudia Valverde, Javier Martín-Broto
Gastrointestinal stromal sarcomas (GISTs) are the most common mesenchymal tumours originating in the digestive tract. They have a characteristic morphology, are generally positive for CD117 (c-kit) and are primarily caused by activating mutations in the KIT or PDGFRA genes(1). On rare occasions, they occur in extravisceral locations such as the omentum, mesentery, pelvis and retroperitoneum. GISTs have become a model of multidisciplinary work in oncology: the participation of several specialties (oncologists, pathologists, surgeons, molecular biologists, radiologists…) has forested advances in the understanding of this tumour and the consolidation of a targeted therapy, imatinib, as the first effective molecular treatment in solid tumours...
March 2, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28337832/retroperitoneal-dedifferentiated-liposarcoma-with-huge-cystic-degeneration-a-case-report
#9
Kazuyoshi Uchihashi, Atsuji Matsuyama, Eisuke Shiba, Yoshizo Kimura, Toshiro Ogata, Kei Yabuki, Hiroshi Harada, Chisachi Kubo, Yojiro Tsuda, Mao Jotatsu, Masanori Hisaoka
Prominent cyst formation is an unusual feature of liposarcoma. We report here a case of dedifferentiated liposarcoma with huge cystic change without preoperative chemo- or radiation therapy. The lesion arose in the retroperitoneum juxtaposed to the right kidney of a 67-year-old woman. She underwent a surgical removal of the retroperitoneal cyst. The cystic tumor contained 1600 mL of old bloody fluid, and its wall was composed of edematous, inflamed or sclerosing fibrous tissue with fatty tissue containing abundant atypical stromal cells, which were immunohistochemically positive for MDM2 and CDK4, and demonstrated MDM2 gene amplification by fluorescence in situ hybridization...
March 23, 2017: Pathology International
https://www.readbyqxmd.com/read/28325663/image-of-the-month-serous-cystadenoma-of-the-retroperitoneum
#10
Krystel Paris, Catherine Anku-Bertholet, Sandeep Mayer
No abstract text is available yet for this article.
March 16, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28325364/retroperitoneal-lymphangioleiomyoma-with-lymph-node-involvement-a-pathologic-radiologic-correlation-of-a-rare-form-of-myomelanocytic-tumor
#11
Amrou Abdelkader, Cesar A Lam, Kaushik S Shahir, Kathleen Christians, Saul M Suster
Lymphangioleiomyomatosis (LAM) is a rare and slowly progressive disorder that usually arises in the lung, affects exclusively women in their childbearing years, and typically presents with progressive dyspnea on exertion and pneumothorax. Infrequently, extra-pulmonary LAM can occur in the retroperitoneum, uterine wall, mediastinum and intraperitoneal lymph nodes. Histologically, LAM is characterized by a proliferation of perivascular epithelioid cells (PEC) that express markers for both melanocytes and smooth muscle cells...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28321997/laparoscopic-resection-of-retroperitoneal-ectopic-thyroid-tissue
#12
Sawako Tamaki, Yasuyuki Miyakura, Soutoku Someya, Hideki Ishikawa, Nao Kakizawa, Fumi Hasegawa, Hiroyuki Tanaka, Rina Kikugawa, Shingo Tsujinaka, Akira Tanaka, Alan Kawarai Lefor, Toshiki Rikiyama
A 43-year-old otherwise healthy woman was found to have a retroperitoneal mass during a routine medical examination and was referred for further evaluation. Abdominal CT scan showed a well-delineated, low-density area that exhibited heterogeneous contrast enhancement. The area measured about 20 mm in size and was to the left of the aorta at the level of the inferior mesenteric artery. MRI showed a mass with heterogeneous hypointensity on T1 -weighted images and heterogeneous hyperintensity on T2 -weighted images...
March 20, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28303733/bi-parametric-magnetic-resonance-imaging-applied-to-obstetrics
#13
Lucia Manganaro, Valeria Vinci, Antonella Giancotti, Sandro Gerli, Denis A Cozzi, Teresa Pusiol, Michele Scialpi, Luca Roncati
Foetal magnetic resonance imaging (MRI) plays an increasingly important role in the diagnosis of foetal abnormalities. Over the years, we have successfully applied bi-parametric MRI (bp-MRI) to the following obstetric conditions: (1) neurologic vascular diseases; (2) assessment of lung parenchyma maturation; (3) renal pathologies, such as polycystic kidney, suspected renal infarction, unilateral or bilateral renal agenesis; (4) placental pathologies, as twin-twin transfusion syndrome or placenta accreta; (5) benignant and malignant congenital tumours or cysts of the liver, such as haemangioendothelioma, hepatoblastoma or metastatic neuroblastoma, of the kidney (e...
March 17, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28300575/correlation-of-histological-grade-of-dedifferentiation-with-clinical-outcome-in-55-patients-with-dedifferentiated-liposarcomas
#14
Kossivi Dantey, Karen Schoedel, Oleksandr Yergiyev, David Bartlett, Uma N M Rao
In this study the histologic grade of dedifferentiated liposarcomas was correlated with outcome in surgically resected specimens in 55 patients over a 19-year period at the University of Pittsburgh Medical Center. The tumors were located in the retroperitoneum (N=34); the extremities and thigh (N=16), and the remainder involved the spermatic cord and head and neck. Most tumors were large (mean=21 cm.) Follow up was available in all 55 patients (median=36months). Forty-one tumors classified as high-grade dedifferentiated liposarcoma (HG-DDLPS) had mitotically active pleomorphic and spindle cells and foci of necrosis...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28296778/malignant-solitary-fibrous-tumor-in-retroperitoneum-a-case-report-and-literature-review
#15
Yihong Zhou, Xi Chu, Ye Yi, Liang Tong, Yingbo Dai
RATIONALE: Solitary fibrous tumor (SFT) is a rare mesenchymal tumor occurs in various sites. Malignant SFT in retroperitoneum is extremely rare. PATIENT CONCERNS: We report a case of malignant retroperitoneal SFT in a 59-year-old man presented with right flank pain for 1 month. DIAGNOSES, INTERVENTIONS AND OUTCOMES: A laparotomy and resection of the tumor were performed, the histopathologic and immunohistochemical findings were consistent with malignant retroperitoneal SFT...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28293325/retained-surgical-foreign-bodies-after-surgery
#16
REVIEW
Valon A Zejnullahu, Besnik X Bicaj, Vjosa A Zejnullahu, Astrit R Hamza
The problem of retained surgical bodies (RSB) after surgery is an issue for surgeons, hospitals and the entire medical team. They have potentially harmful consequences for the patient as they can be life threatening and usually, a further operation is necessary. The incidence of RSB is between 0.3 to 1.0 per 1,000 abdominal operations, and they occur due to a lack of organisation and communication between surgical staff during the process. Typically, the RSB are surgical sponges and instruments located in the abdomen, retroperitoneum and pelvis...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28291905/long-term-results-of-therapy-with-sunitinib-in-metastatic-alveolar-soft-part-sarcoma
#17
Paulina Jagodzińska-Mucha, Tomasz Świtaj, Katarzyna Kozak, Hanna Koseła-Paterczyk, Anna Klimczak, Iwona Ługowska, Pawel Rogala, Michał Wągrodzki, Sławomir Falkowski, Piotr Rutkowski
BACKGROUND: Alveolar soft part sarcoma (ASPS) is a rare, highly vascularized soft tissue sarcoma characterized by a high frequency of metastatic disease and resistance to classical chemotherapy. The purpose of our analysis was to assess long-term sunitinib activity in the treatment of metastatic ASPS. PATIENTS AND METHODS: Between 2009 and 2015, 15 patients were diagnosed with metastatic ASPS and received therapy with sunitinib at initial continuous daily dosing of 37...
March 8, 2017: Tumori
https://www.readbyqxmd.com/read/28288036/gist-manifesting-as-a-retroperitoneal-tumor-clinicopathologic-immunohistochemical-and-molecular-genetic-study-of-112-cases
#18
Markku Miettinen, Anna Felisiak-Golabek, Zengfeng Wang, Shingo Inaguma, Jerzy Lasota
Most gastrointestinal stromal tumors (GISTs) occur in the tubular gastrointestinal (GI) tract, but some present apparently outside the GI tract. In this study, we analyzed 112 GISTs located in the retroperitoneum. These tumors occurred in 55 women and 57 men with a median age of 65 years (range: 21 to 89 y). On the basis of clinically or histologically detected connections to GI tract, 15 tumors were considered likely of gastric, 9 duodenal, and 13 of small intestinal origin. The remaining cases were categorized by location as peripancreatic (n=25), pelvic (n=11), mesenteric (n=4), and of unspecified/miscellaneous sites (n=35)...
May 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28287938/soft-tissue-sarcomas-of-the-abdomen-and-pelvis-radiologic-pathologic-features-part-1-common-sarcomas-from-the-radiologic-pathology-archives
#19
Angela D Levy, Maria A Manning, Waddah B Al-Refaie, Markku M Miettinen
Soft-tissue sarcomas are a diverse group of rare mesenchymal malignancies that can arise at any location in the body and affect all age groups. These sarcomas are most common in the extremities, trunk wall, retroperitoneum, and head and neck. In the adult population, soft-tissue sarcomas arising in the abdomen and pelvis are often large masses at the time of diagnosis because they are usually clinically silent or cause vague or mild symptoms until they invade or compress vital organs. In contrast, soft-tissue sarcomas arising from the abdominal wall come to clinical attention earlier in the course of disease because they cause a palpable mass, abdominal wall deformity, or pain that is more clinically apparent...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28274619/pet-mri-of-the-thorax-abdomen-and-retroperitoneum-benefits-of-the-breathing-synchronized-scanning
#20
Jan Baxa, Eva Ferdova, Jiří Ferda
Hybrid imaging using various radiopharmaceuticals is currently essential not only in detection and therapy response monitoring of tumors, but also in assessment of inflammatory or systemic diseases. Combination of positron emission tomography (PET) and magnetic resonance imaging (MRI) is still relatively new method with great prospects of comprehensive assessment using anatomical and multiple functional information. However, benefits of PET/MRI in thorax, abdomen and retroperitoneum are not completely defined...
February 27, 2017: European Journal of Radiology
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