Αρχειοθήκη ιστολογίου

Αναζήτηση αυτού του ιστολογίου

Κυριακή 25 Απριλίου 2021

Rare histological subtype of invasive micropapillary carcinoma in the ampulla of Vater: A case report

paythelady.612 shared this article with you from Inoreader

World J Clin Cases. 2021 Apr 16;9(11):2671-2678. doi: 10.12998/wjcc.v9.i11.2671.

ABSTRACT

BACKGROUND: Carcinoma of the ampulla of Vater is an uncommon ampullo-pancreatobiliary neoplasm, and the most common histological type is adenocarcinoma with a tubular growth pattern. Invasive micropapillary carcinoma (IMPC) is an aggressive variant of adenocarcinoma in several organs that is associated with lymph node metastasis and poor prognosis. IMPC was first described as a histological subtype of breast cancer; however, IMPC of the ampulla of Vater is extremely rare, with only three articles reported in the English literature.

CASE SUMMARY: We have reported a case of IMPC of the ampulla of Vater in an 80-year-old man. Microscopically, the surface area of the carcinoma was composed of tubulopapillary structures mimicking intra-ampullary papillary-tubular neoplasm, and the deep invasive front area exhibited a pattern of IMPC. The carcinom a showed lymphatic invasion and extensive lymph node metastasis. The immunohistochemical study revealed mixed intestinal and gastric/pan-creatobiliary phenotypes.

CONCLUSION: This rare subtype tumor in the ampulla of Vater showed a histologically mixed phenotype and exhibited aggressive behavior.

PMID:33889635 | PMC:PMC8040169 | DOI:10.12998/wjcc.v9.i11.2671

View on the web

Differences in dietary habits of people with vs without irritable bowel syndrome and their association with symptom and psychological status: A pilot study

paythelady.612 shared this article with you from Inoreader

World J Clin Cases. 2021 Apr 16;9(11):2487-2502. doi: 10.12998/wjcc.v9.i11.2487.

ABSTRACT

BACKGROUND: Previous studies have demonstrated that dietary factors are involved in irritable bowel syndrome (IBS), but the role of diet was evaluated mostly based on food frequency questionnaire. Whether food categories, quantity per time, and intake frequency are different between IBS patients and non-IBS individuals has not been clearly clarified.

AIM: To explore differences in dietary habits of people with vs without IBS and their correlation with symptom and psychological status.

METHODS: A total of 220 questionnaires were administered in a community population and the Rome IV criteria was applied to diagnose IBS. The dietary questionnaire used in this study was multidimensional from food categories, quantity per time, and intake frequency, in contrast to "yes or no" classification used in previous studies. Questionnaires i ncluding IBS symptom severity scale (IBS-SSS), IBS quality of life, visceral sensitivity index, hospital anxiety and depression score (HADS), and gastrointestinal symptom rating scale were used to assess the participants. Rank sum test was used to compare the quantity per time and intake frequency between IBS patients and non-IBS participants. The correlation between psychological factors and diet was evaluated by Spearman correlation analysis. Logistic regression analysis was used to assess the possible dietary risk factors for IBS.

RESULTS: In total, 203 valid questionnaires were collected (response rate 92.3%). Twenty-five participants met the Rome IV criteria for IBS, including 15 (60.0%) women and 10 (40.0%) men. Compared with the non-IBS group, the quantity per time and intake frequency of soybean and its products, spicy food, and dry-fried nuts were statistically significant in IBS participants (P < 0.05). They were positively associated with IBS-SSS and HADS anxiety and depression scores (P < 0.05). Besides, seafood, soft drinks, vegetables, and fruits differed only in quantity per time. The intake frequencies of egg, barbecue, and coarse grain were statistically significant in IBS patients (P < 0.05). We also found that the frequency of soybean and its products (≥ 7 times/week, odds ratio = 11.613, 95% confidence interval: 2.145-62.855, P = 0.004) was an independent risk factor for IBS.

CONCLUSION: Both quantity per time and intake frequency, especially soybean, differ between IBS patients and non-IBS participants. Dietary habits might play potential roles in the pathophysiology of IBS.

PMID:33889614 | PMC:PMC8040167 | DOI:10.12998/wjcc.v9.i11.2487

View on the web

Contrast-enhanced ultrasound using SonoVue mixed with oral gastrointestinal contrast agent to evaluate esophageal hiatal hernia: Report of three cases and a literature review

paythelady.612 shared this article with you from Inoreader

World J Clin Cases. 2021 Apr 16;9(11):2679-2687. doi: 10.12998/wjcc.v9.i11.2679.

ABSTRACT

BACKGROUND: Due to a thicker abdominal wall in some patients, ultrasound artifacts from gastrointestinal gas and surrounding tissues can interfere with routine ultrasound examination, precluding its ability to display or clearly show the structure of a hernial sac (HS) and thereby diminishing diagnostic performance for esophageal hiatal hernia (EHH). Contrast-enhanced ultrasound (CEUS) imaging using an oral agent mixture allows for clear and intuitive identification of an EHH sac and dynamic observation of esophageal reflux.

CASE SUMMARY: In this case series, we report three patients with clinically-suspected EHH, including two females and one male with an average age of 67.3 ± 16.4 years. CEUS was administered with an oral agent mixture (microbubble-based SonoVue and gastrointestinal contrast agent) and identified a direct sign of supradia phragmatic HS (containing the hyperechoic agent) and indirect signs [e.g., widening of esophageal hiatus, hyperechoic mixture agent continuously or intermittently reflux flowing back and forth from the stomach into the supradiaphragmatic HS, and esophagus-gastric echo ring (i.e., the "EG" ring) seen above the diaphragm]. All three cases received a definitive diagnosis of EHH by esophageal manometry and gastroscopy. Two lesions resolved upon drug treatment and one required surgery. The recurrence rate in follow-up was 0%. The data from these cases suggest that the new non-invasive examination method may greatly improve the diagnosis of EHH.

CONCLUSION: CEUS with the oral agent mixture can facilitate clear and intuitive identification of HS and dynamic observation of esophageal reflux.

PMID:33889636 | PMC:PMC8040161 | DOI:10.12998/wjcc.v9.i11.2679

View on the web

Nemaline myopathy with dilated cardiomyopathy and severe heart failure: A case report

paythelady.612 shared this article with you from Inoreader

World J Clin Cases. 2021 Apr 16;9(11):2569-2575. doi: 10.12998/wjcc.v9.i11.2569.

ABSTRACT

BACKGROUND: Nemaline myopathy (NM) is a rare type of congenital myopathy, with an incidence of 1:50000. Patients with NM often exhibit hypomyotonia and varying degrees of muscle weakness. Skeletal muscles are always affected by this disease, while myocardial involvement is uncommon. However, with improvements in genetic testing technology, it has been found that NM with a mutation in the myopalladin (MYPN) gene not only causes slow, progressive muscle weakness but also results in dilated or hypertrophic cardiomyopathy.

CASE SUMMARY: A 3-year-old pre-school boy was admitted to our hospital with cough, edema, tachypnea, and an increased heart rate. The patient was clinically diagnosed with severe dilated cardiomyopathy and heart failure, and subsequent gene examination confirmed the diagnosis of NM with a mutation in MYPN. Captop ril, diuretics, low-dose digoxin, and dobutamine were administered. After 22 d of hospitalization, the patient was discharged due to the improvement of clinical symptoms. During the follow-up period, the patient died of refractory heart failure.

CONCLUSION: Decreased muscular tone and dilated cardiomyopathy are common features of MYPN-mutated NM. Heart transplantation may be a solution to this type of cardiomyopathy.

PMID:33889622 | PMC:PMC8040187 | DOI:10.12998/wjcc.v9.i11.2569

View on the web

Πέμπτη 22 Απριλίου 2021

Reconstructive Management of Gunshot Wounds to the Frontal Sinus: An Urban Trauma Center's Perspective

xlomafota13 shared this article with you from Inoreader

Ann Plast Surg. 2021 Apr 21. doi: 10.1097/SAP.0000000000002857. Online ahead of print.

ABSTRACT

INTRODUCTION: In the last decade, we have seen a steady increase in the incidence of frontal sinus trauma due to gunshot wounds and a decrease in motor vehicle trauma. Penetrating gunshot wounds to the frontal sinus present a unique challenge to the reconstructive surgeon because they require careful consideration of the management principles of plastic surgery. Despite previous reviews on frontal sinus trauma, there are no studies examining the management techniques of frontal sinus fractures due specifically to gunshot wounds. In this study, we aim to retrospectively evaluate the use of a variety of tissue flaps in intervention and associated outcomes.

METHODS: A retrospective chart review was completed on all patients with gunshot wound(s) to the frontal sinus from January 2010 to January 2018 at a single institution. The patients were cla ssified based on the fracture pattern (anterior vs posterior table vs both), degree of displacement, presence of nasofrontal outflow tract injury, and evidence of cerebrospinal fluid leak. Patients were then stratified according to the type of reconstruction performed (cranialization, obliteration and need for free flap) and evaluated for major and minor complications after reconstruction.

RESULTS: In this study, we present outcome data from 28 cases of frontal sinus trauma due to gunshot wounds. There was a statistically significant difference (P = 0.049) in the type reconstructive strategy employed with each type of flap, with pericranial flaps primarily used in cranialization, temporal grafts were more likely to be used in obliteration, and free flaps were more likely to be used in cranialization. The overall major complication rate was 52% (P = 0.248), with the most common acute major complication was cerebrospinal fluid leak (39%) and major chronic was abscess (23.5%).

CONCLUSIONS: This report explores the management of frontal sinus trauma and presents short-term outcomes of treatment for penetrating gunshot wounds at a tertiary referral center.

PMID:33883442 | DOI:10.1097/SAP.0000000000002857

View on the web

Methylomic analysis identifies C11orf87 as a novel epigenetic biomarker for GI cancers

xlomafota13 shared this article with you from Inoreader

by Mita T. M. T. Tran, Kun-Tu Yeh, Yu-Ming Chuang, Po-Yen Hsu, Jie-Ting Low, Himani Kumari, Yu-Ting Lee, Yin-Chen Chen, Wan-Hong Huang, Hongchuan Jin, Shu-Hui Lin, Michael W. Y. Chan

Gastric cancer is one of the leading causes of cancer death worldwide. Previous studies demonstrated that activation of STAT3 is crucial for the development and progression of gastric cancer. However, the role of STAT3 in neuronal related gene methylation in gastric cancer has never been explored. In this study, by using DNA methylation microarray, we identified a potential STAT3 target, C11orf87, showing promoter hypomethylation in gastric cancer patients with lower STAT3 activation and AGS gastric cancer cell lines depleted with STAT3 activation. Although C11orf87 methylation is independent of its expression, ectopic expression of a constitutive activated STAT3 mutant upregulated its expression in gastric cancer cell line. Further bisulfite pyrosequencing demonstrated a progressive increase in DNA methylation of this target in patient tissues from gastritis, intestinal metaplasia, to gastric cancer. Intriguingly, patients with higher C11orf87 methylation was as sociated with better survival. Furthermore, hypermethylation of C11orf87 was also frequently observed in other GI cancers, as compared to their adjacent normal tissues. These results suggested that C11orf87 methylation may serve as a biomarker for diagnosis and prognosis of GI cancers, including gastric cancer. We further postulated that constitutive activation of STAT3 might be able to epigenetically silence C11orf87 as a possible negative feedback mechanism to protect the cells from the overactivation of STAT3. Targeted inhibition of STAT3 may not be appropriate in gastric cancer patients with promoter hypermethylation of C11orf87.
View on the web

Nasal Septal Swell Body: A Distinctive Structure in the Nasal Cavity

xlomafota13 shared this article with you from Inoreader

pubmed-meta-image.png

Ear Nose Throat J. 2021 Apr 21:1455613211010093. doi: 10.1177/01455613211010093. Online ahead of print.

ABSTRACT

OBJECTIVES: The nasal septal swell body (NSB), also known as the nasal septal turbinate, is located in the anterior part of the nasal septum. This study is a narrative review of the existing knowledge on recent developments in NSB.

METHODS: A literature search was performed using PubMed, Embase, Web of Science, Ovid, and Cochrane Library databases. Google Sc holar was used to access more extensive literature. The inclusion criteria were human studies published in English. The exclusion criteria were non-English language and animal studies.

RESULTS: Of the 345 articles that were initially obtained from 5 databases and Google Scholar, 28 were included in this review. There have been many names for NSBs in the past, which still have no unified terminology recognized by professionals. Pathological investigations revealed that NSB contains a certain amount of sinusoidal blood components. Nasal septal swell body is closely related to the internal nasal valve. Imaging studies have found that the size of NSB is associated with nasal diseases, and NSB hypertrophy can cause anatomic obstruction. In recent years, several procedures for NSB have been reported, and preliminary effectiveness has been achieved. However, the long-term outcomes of volume reduction techniques remain unproven.

CONCLUSIONS: The NSB is a distinct anatomic struct ure that may contribute to nasal obstruction and may be reduced surgically with unclear long-term results. Although being investigated for over a century, the unique physiological roles of NSB are not yet fully understood. More evidence is needed to elucidate its physiological effects.

PMID:33881954 | DOI:10.1177/01455613211010093

View on the web