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World Journal of Gastroenterology 2008年第9期14卷 1453-1455页

作者： Massimo Imbriaco luigi camera Alessandra Manciuria Marco Salvatore Department of Radiology University Federico Ⅱ and Istituto di Biostrutture e Bioimmagini Consiglio Nazionale delle RicercheInstitute of Bio-structure and Bio-imagingVia Pansini5 Naples 80123Italy Department of Radiology University Federico Ⅱ and Istituto di Biostrutture e Bioimmagini Consiglio Nazionale delle RicercheInstitute of Bio-structure and Bio-imaging Via Pansini5 Naples 80123Italy Department of Radiology University Federico Ⅱ and Istituto di Biostrutture e Bioimmagini Consiglio Nazionale delle Ricerche Institute of Bio-structure and Bio-imaging Via Pansini 5 Naples 80123 Italy

Hepatic splenosis refers to heterotopic auto- transplantation and implantation of splenic tissue resulting from the spillage of cells from the spleen after splenic trauma or splenectomy. The true incidence of splenosis is unknown, because this entity is usually an incidental finding at surgery. Splenic implants are usually multiple, and can be localized anywhere in the peritoneal cavity. Splenic implants in the peritoneal cavity may be confused with renal tumors, abdominal lymphomas and endometriosis. We describe computed tomography (CT) and magnetic resonance imaging (MRI) findings in a rare case of multiple intra-abdominal splenosis located along the hepatic surface and adjacent to the upper pole of the right kidney, mimicking a renal neoplasm.

关键词： Abdomen Computed tomography Magnetic resonance imaging Liver Spleen

Colonic perforation by a transmural and transvalvular migrated retained sponge:Multi-detector computed tomography findings

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World Journal of Gastroenterology 2014年第15期20卷 4457-4461页

作者： luigi camera Marco Sagnelli Paolo Guadagno Pier Paolo Mainenti Teresa Marra Maria Scotto di Santolo Landino Fei Marco Salvatore Department of Radiology University "Federico Ⅱ"80131 NaplesItaly Institute of Biostructures and Bioimaging National Research Council (CNR)-Via Tommaso De Amicis 9580131 NaplesItaly Gastrointestinal Surgery Unit-Second University School 80131 NaplesItaly

Transmural migrated retained sponges usually impact at the level of the ileo-cecal valve leading to a small bowel *** passed through the ileo-cecal valve,a retained sponge can be propelled forward by peristaltic activity and eliminated with *** report the case of a 52-year-old female with a past surgical history and recurrent episodes of abdominal pain and *** physical examination,a generalized resistance was observed with tenderness in the right ***-enhanced multi-detector computed tomography findings were consistent with a perforated right colonic diverticulitis with several out-pouchings at the level of the ascending colon and evidence of free air in the right parieto-colic gutter along with an air-fluid collection within the *** addition,a ring-shaped hyperdense intraluminal material was also *** surgery,the ascending colon appeared irregularly thickened and folded with a focal wall interruption and a peri-visceral abscess at the level of the hepatic flexure,but no diverticula were found.A right hemi-colectomy was performed and on dissection of the surgical specimen a retained laparotomy sponge was found in the bowel lumen.

关键词： Retained sponge Transmural migration Multi-detector computed tomography Colonic perforation Acute abdomen

Pseudopneumoperitoneum in chronic intestinal pseudo-obstruction:A case report

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World Journal of Gastroenterology 2011年第24期17卷 2972-2975页

作者： luigi camera Milena Calabrese Giovanni Sarnelli Margaret Longobardi Alba Rocco Rosario Cuomo Marco Salvatore Department of Bio-morphological and Functional Sciences University "Federico II" Institute of Bioimages and Biostructures National Research Council Department of Clinical and Experimental Medicine Gastroenterology UnitUniversity "Federico II"

Chronic intestinal pseudo-obstruction(CIPO) is a rare disease due to a severe gastrointestinal motility disorder which may mimic,on both clinical and radiological grounds,mechanical *** report a case of a 26-year-old woman who presented to our institution for plain abdominal radiography for referred long-lasting constipation with recurrent episodes of abdominal pain and *** X-ray,performed both in the upright and supine position,an isolated air-fluid level was depicted in the left flank,together with a number of radiological signs suggestive of ***,subphrenic radiolucency could be observed in the upright ***,the intestinal wall of some jejunal loops appeared to be outlined in the right ***,the inferior cardiac border was clearly depicted in the upright *** patient however had no evidence ofperitoneal signs but only hypoactive bowel *** multi-detector computed tomography(MDCT) of the abdomen and pelvis was therefore *** revealed abnormal air-driven distension of the small and large bowel,without evidence of extraluminal *** radiological signs of pneumoperitoneum turned out to be false-positive *** patient was submitted to pan-colonoscopy and to anorectal manometry to rule out Hirshprung's disease,and was finally discharged with a diagnosis of CIPO.

关键词： Pseudopneumoperitoneum Abdominal radi-ography Multi-detector computed tomography Motilitydisorders Chronic intestinal pseudo-obstruction

Contrast enhanced multi-detector CT and MR findings of a well-differentiated pancreatic vipoma

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World Journal of Radiology 2014年第10期6卷 840-845页

作者： luigi camera Rosa Severino Antongiulio Faggiano Stefania Masone Gelsomina Mansueto Simone Maurea Rosa Fonti Marco Salvatore Department of Advanced Biomedical Sciences Diagnostic Imaging Section University "Federico Ⅱ"80131 Naples Italy Institute of Biostructures and Bioimaging (C.N.R.) 80131 Naples Italy Department of Clinical Medicine and Surgery Endocrinology Section University "Federico Ⅱ"80131 Naples Italy Department of Gastro-enterology Endocrinology and Surgery University "Federico Ⅱ"80131 Naples Italy Department of Advanced Biomedical Sciences Pathology Section University "Federico Ⅱ"80131 Naples Italy

Pancreatic vipoma is an extremely rare tumor accounting for less than 2% of endocrine pancreatic neoplasms with a reported incidence of 0.1-0.6 per million. While cross-sectional imaging findings are usually not specific, exact localization of the tumor by means of either computed tomography(CT) or magnetic resonance(MR) is pivotal for surgical planning. However, cross-sectional imaging findings are usually not specific and further characterization of the tumor may only be achieved bysomatostatin-receptor scintigraphy(SRS). We report the case of a 70 years old female with a two years history of watery diarrhoea who was found to have a solid, inhomogeneously enhancing lesion at the level of the pancreatic tail at Gadolinium-enhanced MR(Somatom Trio 3T, Siemens, Germany). The tumor had been prospectively overlooked at a contrast-enhanced multi-detector CT(Aquilion 64, Toshiba, Japan) performed after i.v. bolus injection of only 100 cc of iodinated non ionic contrast media because of a chronic renal failure(3.4 mg/mL) but it was subsequently confirmed by SRS. The patient first underwent a successful symptomatic treatment with somatostatin analogues and was then submitted to a distal pancreasectomy with splenectomy to remove a capsulated whitish tumor which turned out to be a well-differentiated vipoma at histological and immuno-histochemical analysis.

关键词： Pancreatic endocrine tumor Vasoactive intestinal peptide Multi-detector computed tomography Contrast induced nephropathy Magnetic resonance imaging Nephrogenic systemic fibrosis Somatostatin receptor scintigraphy

Volvulus of the ascending colon in a non-rotated midgut:Plain film and MDCT findings

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World Journal of Radiology 2012年第10期4卷 439-442页

作者： luigi camera Milena Calabrese Pier Paolo Mainenti Stefania Masone Walter Del Vecchio Giovanni Persico Marco Salvatore Department of Radiology University "Federico Ⅱ" Institute of Biostructures and Bioimages National Research Council(CNR) Department of General and Geriatric Surgery University "Federico Ⅱ"

Colonic volvulus is a relatively uncommon cause of large bowel obstruction usually involving mobile,intraperitoneal,colonic *** or acquired anatomic variation may be associated with an increased risk of colonic volvulus which can occasionally involve retro-peritoneal *** report a case of 54-year-old female who presented to our Institution to perform a plain abdominal film series for acute onset of cramping abdominal *** the upright and supine films showed signs of acute colonic obstruction which was thought to be due to an internal hernia of the transverse colon into the lesser *** patient was therefore submitted to a multi-detector contrast-enhanced computed tomography(CT).CT findings were initially thought to be consistent with the presumed diagnosis of internal hernia but further evaluation and coronal reformatting clearly depicted the presence of a colonic volvulus possibly resulting from a retro-gastric *** surgery,a volvulus of the ascending colon was found and a right hemi-colectomy had to be ***,a non rotated midgut with a right-sided duodeno-jejunal flexure and a left sided colon was also found at laparotomy and over-looked in the pre-operative *** evaluation of CT images was therefore performed and a number of CT signs of intestinal malrotation could be identified.

关键词： Colonic volvulus Intestinal malrotation Abdominal plain film Multi-detector computed tomography Large bowel obstruction

Non-invasive diagnostic imaging of colorectal liver metastases

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World Journal of Radiology 2015年第7期7卷 157-169页

作者： Pier Paolo Mainenti Federica Romano Laura Pizzuti Sabrina Segreto Giovanni Storto Lorenzo Mannelli Massimo Imbriaco luigi camera Simone Maurea IBB CNR Advanced Biomedical Science Department Radiology Section University of Naples "Federico II" IRCCS CROB Radiology Department Memorial Sloan-Kettering Cancer Center

Colorectal cancer is one of the few malignant tumors in which synchronous or metachronous liver metastases [colorectal liver metastases(CRLMs)] may be treated with surgery. It has been demonstrated that resection of CRLMs improves the long-term prognosis. On the other hand, patients with un-resectable CRLMs may benefit from chemotherapy alone or in addition to liverdirected therapies. The choice of the most appropriate therapeutic management of CRLMs depends mostly on the diagnostic imaging. Nowadays, multiple non-invasive imaging modalities are available and those have a pivotal role in the workup of patients with CRLMs. Although extensive research has been performed with regards to the diagnostic performance of ultrasonography, computed tomography, positron emission tomography and magnetic resonance for the detection of CRLMs, the optimal imaging strategies for staging and follow up are still to be established. This largely due to the progressive technological and pharmacological advances which are constantly improving the accuracy of each imaging modality. This review describes the non-invasive imaging approaches of CRLMs reporting the technical features, the clinical indications, the advantages and the potential limitations of each modality, as well as including some information on the development of new imaging modalities, the role of new contrast media and the feasibility of using parametric image analysis as diagnostic marker of presence of CRLMs.

关键词： Advances in imaging Colorectal cancer Liver metastases

A spontaneous strangulated transomental hernia: Prospective and retrospective multi-detector computed tomography findings

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World Journal of Radiology 2014年第2期6卷 26-30页

作者： luigi camera Angela De Gennaro Margaret Longobardi Stefania Masone Emanuela Calabrese Walter Del Vecchio Giovanni Persico Marco Salvatore Department of Radiology University "Federico II" Institute of Biostructures and Bioimaging (C.N.R.) University "Federico II" Department of General and Geriatric Surgery University "Federico II"

Transomental hernias are among the rarest type of all internal hernias which overall account for less than 6% of small bowel obstructions. Most transomental hernias occurring in adults are either iatrogenic or post-traumatic. More rarely, a spontaneous herniation of small bowel loops may result from senile atrophy of the omentum. We report a case of an 86-year-old male who presented with signs and symptoms of small bowel obstruction but had no past surgical or traumatic abdominal history. At contrast-enhanced multi-detector row computed tomography(CT), a cluster of fluid-filled dilated small bowel loops could be appreciated in the left flank, with associated signs of bowel wall ischemia. Swirling of the mesenteric vessels could also be appreciated and CT findings were prospectively considered consistent with a strangulated small bowel volvulus. At laparotomy, no derotation had to be performed but up to 100 cm of gangrenous small bowel loops had to be resected because of a transomental hernia through a small defect in the left part of the greater omentum. Retrospective reading of CT images was performed and findings suggestive of transomental herniation could then be appreciated.

关键词： Small bowel obstruction Internal hernias Transomental hernia Multi-detector row computed tomography Strangulation

Prognostic role of sarcopenia in metastatic colorectal cancer patients during first-line chemotherapy:A retrospective study

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World Journal of Clinical Oncology 2021年第5期12卷 355-366页

作者： Chiara Maddalena Andrea Ponsiglione luigi camera Lidia Santarpia Fabrizio Pasanisi Dario Bruzzese Camilla Panico Giovanni Fiore Simona Camardella Tolomeo Caramia Alessia Farinaro Sabino De Placido Chiara Carlomagno Department of Clinical Medicine and Surgery University of Naples Federico IINaples 80131Italy Department of Advanced Biomedical Sciences University of Naples Federico IINaples 80131Italy Department of Public Health University of Naples Federico IINaples 80131Italy

BACKGROUND Sarcopenia is a condition characterized by decreased skeletal muscle mass due to physiological ageing or to a concomitant disease such as *** cancer patients,a low lean body mass is suggested to be a negative prognostic factor for survival and for the development of dose-limiting chemotherapy toxicities irrespective of disease *** To evaluate the prognostic role of sarcopenia in patients with metastatic colorectal cancer(mCRC)undergoing first-line *** Our retrospective analysis included 56 mCRC patients who received first-line chemotherapy from 2014 to 2017 at the Medical Oncology Unit of our *** scans were performed before starting chemotherapy and at the first disease *** was assessed using the skeletal mass index=muscle area in cm^(2)/(height in m^(2))calculated at the L3 *** survival and objective response rate were *** were analyzed during the first four cycles of therapy and graded according to Common Terminology Criteria for Adverse Events version 4.0.A loss of skeletal muscle mass≥5%was considered indicative of deterioration in muscle *** Median age was 67 years and 35.7%of patients were≥70 years *** patients(25%)were sarcopenic at baseline computed tomography(CT)scan(7/33 men;7/23 women);5/14 sarcopenic patients were≥70 years *** followup was 26.8 mo(3.8-66.8 mo)and median overall survival was 27.2 mo(95%CI:23.3-37.3).Sarcopenia was not correlated to overall survival(P=0.362),to higher toxicities reported during the first 4 cycles of chemotherapy(P=1.0)or to response to treatment(P=0.221).At the first disease reassessment,a skeletal muscle loss(SML)≥5%was found in 17 patients(30.3%)3 of whom were already sarcopenic at baseline CT scan,while 7 patients became *** was not correlated to overall survival(P=0.961).No statistically significant correlation was found between baseline sarcopenia and age(P=1.0),body m

关键词： Sarcopenia Lean body mass Skeletal muscle mass Metastatic colorectal cancer