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https://www.readbyqxmd.com/read/28108975/3d-printed-soft-tissue-physical-models-of-renal-malignancies-for-individualized-surgical-simulation-a-feasibility-study
#1
Michael M Maddox, Allison Feibus, James Liu, Julie Wang, Raju Thomas, Jonathan L Silberstein
To construct patient-specific physical three-dimensional (3D) models of renal units with materials that approximates the properties of renal tissue to allow pre-operative and robotic training surgical simulation, 3D physical kidney models were created (3DSystems, Rock Hill, SC) using computerized tomography to segment structures of interest (parenchyma, vasculature, collection system, and tumor). Images were converted to a 3D surface mesh file for fabrication using a multi-jet 3D printer. A novel construction technique was employed to approximate normal renal tissue texture, printers selectively deposited photopolymer material forming the outer shell of the kidney, and subsequently, an agarose gel solution was injected into the inner cavity recreating the spongier renal parenchyma...
January 20, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28108142/identifying-mronj-affected-bone-with-digital-fusion-of-functional-imaging-fi-and-cone-beam-computed-tomography-cbct-case-reports-and-hypothesis
#2
Gayathri Subramanian, Evelyne Kalyoussef, Meredith Blitz-Goldstein, Jessenia Guerrero, Nasrin Ghesani, Samuel Y P Quek
Surgical debridement of medication-related osteonecrosis of the jaw (MRONJ) lesions is far less predictable than lesion resection. Margins for surgical debridement are guided by surrogate markers of bone viability, such as bleeding and bone fluorescence, which limit debridement to visibly necrotic bone. In contrast, surgical resection is extensive, including a substantial portion of surrounding bone. The concept that the MRONJ lesion is a composite of affected but viable ("compromised") and necrotic bone is supported by histopathological data...
November 28, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28107600/the-predictive-and-prognostic-role-of-serum-neopterin-and-tryptophan-breakdown-in-prostate-cancer
#3
Renate Pichler, Josef Fritz, Isabel Heidegger, Eberhard Steiner, Zoran Culig, Helmut Klocker, Dietmar Fuchs
The Interferon-gamma induced enzymes indoleamine 2,3-dioxygenase and GTP-cylohydrolase are key players in tumor immune escape mechanisms. We quantified serum levels of neopterin and tryptophan breakdown (tryptophan, kynurenine and kynurenine-to-tryptophan ratio) in addition to prostate-specific antigen (PSA) in newly diagnosed prostate cancer (PCa) patients (n=100) before radical prostatectomy (RP) as well as at time of biochemical recurrence (BCR) after RP (n=50) in comparison to healthy men (n=49). Effects of biomarkers on the risk of PCa diagnosis on transrectal biopsy, worse histopathological characteristics of the RP specimens and cancer-specific survival (CSS) after BCR were investigated...
January 20, 2017: Cancer Science
https://www.readbyqxmd.com/read/28107259/paget-s-disease-of-the-vulva-a-review-of-20-years-experience
#4
Raghava Parashurama, Vivek Nama, Richard Hutson
BACKGROUND: Extramammary Paget's disease is a rare condition, and the vulva is a common site for it to occur. Despite this, there is a paucity of literature on Paget's disease of the vulva (VPD). A Cochrane meta-analysis could not draw any conclusions on interventions in VPD. Our aim was to review our practice and improve further management of VPD in our center. METHODS: We reviewed all the cases presented to Leeds Gynaecological Oncology Centre between 1988 and 2016...
January 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28105193/pleomorphic-lobular-carcinoma-in-situ-current-evidence-and-a-systemic-review
#5
Umar Wazir, Ali Wazir, Clive Wells, Kefah Mokbel
Pleomorphic lobular carcinoma in situ (PLCIS) has only recently been identified as a distinct pathological entity within classic lobular carcinoma in situ (CLCIS). As such, there is currently no consensus among clinicians regarding the optimal treatment of this disease. The present study determined the risk of concomitant invasive disease and ductal carcinoma in situ (DCIS) if PLCIS is observed on core needle biopsy (CNB) and collated the evidence regarding the risk of recurrence in relation to surgical margins and adjuvant therapy...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104275/anatomic-considerations-for-sinonasal-and-ventral-skull-base-malignancy
#6
REVIEW
Thomas J Willson, Juan C Fernandez-Miranda, Cristain Ferrareze-Nunes, Stefan Lieber, Eric W Wang
Malignancies of the sinonasal region and ventral skull base include a varied group of uncommon tumors that are a challenge to treat. These malignancies, with few exceptions, often present late because of their insidious growth and bland symptomatology. As with malignancies of other sites, the primary goal in surgical management is complete resection with negative margins. This presents a unique surgical challenge in that these lesions lie within a region of densely populated anatomic real estate. This fact reinforces the importance of complete preoperative work-up and a sound anatomic understanding...
January 16, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28103903/intraoperative-radiotherapy-iort-as-boost-in-breast-cancer
#7
REVIEW
Felix Sedlmayer, Roland Reitsamer, Frederik Wenz, Elena Sperk, Christoph Fussl, Julia Kaiser, Ingrid Ziegler, Franz Zehentmayr, Heinz Deutschmann, Peter Kopp, Gerd Fastner
The term IORT (intraoperative radiotherapy) is currently used for various techniques that show huge differences in dose delivery and coverage of the tissue at risk. The largest evidence for boost IORT preceding whole breast irradiation (WBI) originates from intraoperative electron treatments (IOERT) with single doses around 10 Gy. At median follow-up periods at 6 years, outstandingly low local recurrence rates of less than 1% are observed. Higher local relapse rates were described for G3 tumors and triple negative breast cancers as well as for IORT following primary systemic treatment for locally advanced tumors...
January 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28103572/low-rate-of-positive-margins-and-re-excision-after-partial-mastectomy-in-highly-selected-breast-cancer-patients-a-chinese-single-institution-experience
#8
Siyu Wu, Yanyan Zhu, Zhaozhi Yang, Miao Mo, Hongbo Gao, Wentao Yang, Guangyu Liu
A recent randomized controlled trial firstly demonstrated that cavity shaving significantly decreased the rate of positive margins and re-excision among partial mastectomy (PM) patients. However, it remains unknown whether cavity shaving should be routinely applied to Chinese breast cancer patients undergoing PM. A total of 408 PM patients undergoing 410 PMs among 1796 surgically treated breast cancer patients at Fudan University Shanghai Cancer Centre from January 2015 to June 2015 were included in our study...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28101232/feasibility-and-application-of-single-hole-video-assisted-thoracoscope-in-pulmonary-peripheral-tumors
#9
Xin Wang, Lei Wang, Hao Zhang, Ke Li, Xiangnan Gong
The feasibility and clinical application of single-hole video-assisted thoracoscope in pulmonary peripheral tumors was examined. From March, 2011 to March, 2015, we retrospectively analyzed the clinical data obtained from 32 patients with pulmonary peripheral tumor that received single-hole thoracoscopic surgery. We completed the surgery via a 1.5-cm incision on the seventh or eighth rib in midaxillary line as the observation hole, and a 4.0-5.0-cm incision in the lateral margin of pectoralis major in the fourth or fifth rib in midaxillary line as the operation hole...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100683/impact-of-microscopic-orbital-periosteum-invasion-in-orbital-preservation-surgery
#10
Kenya Kobayashi, Taisuke Mori, Fumihiko Matsumoto, Naoya Murakami, Masanori Teshima, Masahiko Fukasawa, Yoshifumi Matsumoto, Satoko Matsumura, Jun Itami, Masahiro Asai, Seiichi Yoshimoto
OBJECTIVE: The orbital periosteum is considered to be a barrier to tumor spread; however, it is difficult to evaluate microscopic tumor spread during surgery. This study aimed to assess the impact of pathological status in orbital preservation surgery. METHODS: We retrospectively analyzed the 3-year local control rate and treatment outcomes of patients with malignant tumors invading the orbit who were treated between 2006 and 2012. RESULTS: In total, 27 patients were reviewed over a median follow-up period of 36 months...
January 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28100249/intraoperative-radiation-therapy-iort-in-soft-tissue-sarcoma
#11
REVIEW
Falk Roeder, Robert Krempien
Soft-tissue sarcoma (STS) represent a rare tumor entity, accounting for less than 1% of adult malignancies. The cornerstone of curative intent treatment is surgery with free margins, although the extent of the surgical approach has been subject to change in the last decades. Multimodal approaches usually including radiation therapy have replaced extensive surgical procedures in order to preserve functionality while maintaining adequate local control. However, the possibility to apply adequate radiation doses by external beam radiation therapy (EBRT) can be limited in some situation especially in case of directly adjacent organs at risk with low radiation tolerance...
January 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28100235/solitary-fibrous-tumour-of-the-liver-report-on-metastasis-and-local-recurrence-of-a-malignant-case-and-review-of-literature
#12
REVIEW
Nelson Chen, Kellee Slater
BACKGROUND: Solitary fibrous tumours (SFT) are neoplasms of mesenchymal origin that predominantly arise from the pleura. SFT of the liver (SFTL) are a rare occurrence with little number of cases reported in English literature. Malignant cases of hepatic SFT are an even rarer occurrence. For this reason, the prognostic evaluation of SFTLs is unknown and difficult to measure. METHODS: A search on English literature on "Solitary Fibrous Tumour of the Liver" was conducted on common search engines (PubMed, Google)...
January 18, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28099619/conservative-surgical-management-of-in-situ-subungual-melanoma-long-term-follow-up
#13
Mariana Catalina De Anda-Juárez, María Abril Martínez-Velasco, Verónica Fonte-Ávalos, Sonia Toussaint-Caire, Judith Domínguez-Cherit
Subungual melanoma represents 20% of all melanomas in Hispanic population. Here, we report the outcome of 15 patients with in situ subungual melanoma treated with resection of the nail unit with a 5-mm margin without amputation, followed up for 55.93 ± 43.08 months. The most common complications included inclusion cysts and nail spicules. We found no evidence of local or distant recurrences at the last visit of our follow up. Functional outcome was good, with only one patient reporting persistent mild pain...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28099603/squamoid-eccrine-ductal-carcinoma
#14
Maria Isabel Ramos Saraiva, Marcella Amaral Horta Barbosa Vieira, Larissa Karine Leite Portocarrero, Rafael Cavanellas Fraga, Priscila Kakizaki, Neusa Yuriko Sakai Valente
Squamoid eccrine ductal carcinoma is an eccrine carcinoma subtype, and only twelve cases have been reported until now. It is a rare tumor and its histopathological diagnosis is difficult. Almost half of patients are misdiagnosed as squamous cell carcinoma by the incisional biopsy. We report the thirteenth case of squamoid eccrine ductal carcinoma. Female patient, 72 years old, in the last 6 months presenting erythematous, keratotic and ulcerated papules on the nose. The incisional biopsy diagnosed squamoid eccrine ductal carcinoma...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28099546/multiple-keratoacanthomas-occurring-in-surgical-margins-and-de-novo-treated-with-intralesional-methotrexate
#15
Vindhya L Veerula, Navid Ezra, Mouhammad Aouthmany, Thomas A Graham, Stephen E Wolverton, Ally-Khan Somani
Keratoacanthomas (KAs) are common skin lesions known for their rapid growth and spontaneous regression. Keratoacanthomas also can occur in sites of prior trauma, such as surgical scars. We report a case of multiple KAs occurring in the site of trauma from a prior surgery and de novo as well as the response to treatment with intralesional methotrexate (MTX).
December 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28099352/acute-pancreatitis-in-patients-with-pancreatic-cancer-timing-of-surgery-and-survival-duration
#16
Shaojun Li, Bole Tian
Acute pancreatitis (AP) is a rare manifestation of pancreatic cancer (PC). The relationship between AP and PC remains less distinct.From January 2009 to November 2015, 47consecutive patients with PC who presented with AP were reviewed for this study. Clinical features, clinicopathologic variables, postoperative complications, and follow-up evaluations of patients were documented in detail from our database. In order to identify cutoff threshold time for surgery, receiver operating curve (ROC) was built according to patients with or without postoperative complications...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099342/successful-surgical-treatment-for-squamous-cell-carcinoma-arising-from-hidradenitis-suppurativa-a-case-report-and-literature-review
#17
Cheng Huang, Zhichao Lai, Mu He, Biyun Zhai, Liangrui Zhou, Xiao Long
RATIONALE: Hidradenitis suppurativa (HS) is a disabling inflammatory disease mainly affecting apocrine glands. Marjolin ulcer (MU) is a term used to describe a rare type of squamous cell carcinoma (SCC) arising within sites of chronic wounds or preexisting scars. Chronic HS may result in a rare type of SCC, MU, which has a poor prognosis due to its high metastatic rate. CONCERNS OF THE PATIENT: Here we reported a 60-year-old male who developed SCC on the right buttock after suffering from HS for 15 years...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099070/laparoscopic-rectal-dissection-assisted-by-transanal-endoluminal-videoendoscopy-through-a-blunt-tip-trocar
#18
Emanuele Asti, Andrea Lovece, Luigi Bonavina
BACKGROUND AND AIMS: Laparoscopic resection is a well-established approach for colorectal cancer surgery. In patients with rectal cancer treated by neoadjuvant chemoradiotherapy, it may be difficult to identify a clear safety margin for endostapling and subsequent anastomosis. We designed an innovative technical approach to assist colorectal anastomosis in these patients. TECHNIQUE: A four-trocar laparoscopic approach is used. After exploration of the abdominal cavity, the left colic flexure is completely mobilized...
January 18, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28097410/intercostal-trocars-enable-easier-laparoscopic-resection-of-liver-tumors-in-segments-7-and-8
#19
Fumitoshi Hirokawa, Michihiro Hayashi, Mitsuhiro Asakuma, Tetsunosuke Shimizu, Yoshihiro Inoue, Kazuhisa Uchiyama
BACKGROUND: Laparoscopic resection of posterosuperior (PS) tumors of the liver is more difficult than that of anterolateral (AL) tumors, owing to the narrow surgical field in the PS location. In this retrospective cohort study, our aim was to determine if port insertion through the intercostal space would lead to improved outcomes for laparoscopic resection of tumors in PS liver segments 7 and 8. METHOD: Between January 2006 and December 2015, 153 patients underwent laparoscopic resection of solitary liver tumors at Osaka Medical College Hospital...
January 17, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28097077/a-case-of-umbilical-endometriosis-villar-s-nodule
#20
Amanda M Krantz, Atman A Dave, Daniel J Margolin
Umbilical endometriosis is a fairly rare clinical entity with unclear pathogenesis. We report the case of a 27-year-old woman who presented with a painful umbilical mass and discharge. Imaging performed was inconclusive, and surgical excision of the site with margins revealed endometriosis on microscopic examination. The incidence of umbilical endometriosis, its pathogenesis, clinical manifestations, workup, and management are discussed.
December 12, 2016: Curēus
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