Read by QxMD icon Read

Actinic lesions

Yan Zhang, Hong Li, Yingqin Jia, Pengfei Yang, Feng Zhao, Wei Wang, Wenqing Liu, Guisheng Chen, Xiaoqing Zhuang, Juan Li
BACKGROUD: Vascular calcification is currently recognized as an important pathobiological process in atherosclerosis, but the mechanism remains elusive. Given the similarities in vascular calcification and bone formation,18 F-sodium fluoride (18 F-NaF) is now considered a novel marker of vascular calcification. This study aimed to correlate18 F-NaF accumulation with the histological characterization of vascular calcification in carotid plaques. METHODS: A total of 8 patients who were undergoing carotid endarterectomy (CEA) for carotid artery stenosis were recruited...
March 16, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Christopher J Schwartz, Cynthia A Schandl, Jennifer Morse, Jonathan Ralston, Amy Rapkiewicz, Farbod Darvishian
Myxoid lesions of the breast can be diagnostically challenging entities. We report 4 cases of CD34+ fibromyxoid lesion that have been previously diagnosed as "benign myxoid lesion," "nodular mucinosis," or "mammary myofibroblastoma, myxoid type" on the basis of CD34-positivity. The lesions were microscopically well circumscribed and composed of a paucicellular spindle cell proliferation in a background of myxoid stroma. No epithelial component was identified. The spindle cells showed immunohistochemical reactivity for CD34 and smooth muscle actin...
March 1, 2018: International Journal of Surgical Pathology
Lin Hai Kurahara, Keizo Hiraishi, Yaopeng Hu, Kaori Koga, Miki Onitsuka, Mayumi Doi, Kunihiko Aoyagi, Hidetoshi Takedatsu, Daibo Kojima, Yoshitaka Fujihara, Yuwen Jian, Ryuji Inoue
Background & Aims: The transient receptor potential ankyrin 1 (TRPA1) channel is highly expressed in the intestinal lamina propria, but its contribution to gut physiology/pathophysiology is unclear. Here, we evaluated the function of myofibroblast TRPA1 channels in intestinal remodeling. Methods: An intestinal myofibroblast cell line (InMyoFibs) was stimulated by transforming growth factor-β1 to induce in vitro fibrosis. Trpa1 knockout mice were generated using the Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9) system...
March 2018: Cellular and Molecular Gastroenterology and Hepatology
Katherine Peters, Jamie T Caracciolo, Evita Henderson-Jackson, Odion Binitie
Myopericytomas are rare, slow-growing benign perivascular tumors most commonly arising within the superficial subcutaneous soft tissues of the lower extremity. They represent one of several related perivascular tumors of myoid lineage with similar morphology and shared immunohistochemical profile including positive staining for smooth muscle actin. Histologically, myopericytoma exhibit concentric, perivascular proliferation of spindled myoid cells with bland elongated nuclei and associated blood vessels. A solitary well-demarcated nodule or mass is typically referred to as myopericytoma, whereas an infiltrative multinodular lesion has more recently been termed myopericytomatosis...
February 2018: Radiology Case Reports
Istvan Bodi, Anastasios Giamouriadis, Naomi Sibtain, Ross Laxton, Andrew King, Francesco Vergani
Background: Primary CNS malignant rhabdoid tumors are very rare in adults and much less is known about their biological behavior than in children. Recently, two adult cases of SMARCB1 (also known as INI1)-deficient tumor with rhabdoid cells have been described, suggesting an emerging group of primary meningeal SMARCB1-deficient tumors. We have recently encountered a case of INI1-deficient tumor with similar histology and immunophenotype to the above cases, but with a superficial cerebral, yet apparent intra-axial origin...
2018: Surgical Neurology International
Nupoor Narula, Daniella Kadian-Dodov, Jeffrey W Olin
Fibromuscular dyplasia (FMD) is an under-recognized non-atherosclerotic, non-inflammatory arteriopathy that occurs most commonly in middle-aged women, but may affect individuals of all age groups. FMD may result in stenosis, aneurysm, dissection, occlusion, or arterial tortuosity. Recently published data demonstrated a genetic association of FMD with a variant in the phosphatase and actin regulator 1 gene (PHACTR1), substantiating that the pathogenesis of this condition has genetic contribution. The renal and extracranial carotid and vertebral arteries are most often involved, although any arterial bed may be affected...
March 10, 2018: Progress in Cardiovascular Diseases
Shira Ronen, Irene Aguilera-Barrantes, Tamara Giorgadze, Petr Šteiner, Petr Grossmann, Saul Suster
Polymorphous sweat gland carcinoma is an uncommon low-grade malignant adnexal tumor with a marked predilection for the distal extremities. Histologically, the lesions are characterized by a cellular proliferation showing a combination of growth patterns, including trabecular, solid, tubular, cribriform, or adenoid cystic and pseudopapillary. The immunohistochemical and molecular profile of these tumors has not yet been properly addressed. We have studied 3 cases of polymorphous sweat gland carcinoma using a broad panel of immunohistochemical markers including cytokeratin AE1/AE3, CK5/6, MOC31, p40, p63, p16, chromogranin, synaptophysin, CD56, MIB-1, estrogen receptor, progesterone receptor, androgen receptor, BER-EP4, smooth muscle actin, epithelial membrane antigen, carcinoembryonic antigen, CD117, S100 protein, HBME-1, DOG1, vimentin, and mammaglobin...
March 6, 2018: American Journal of Dermatopathology
Daryl Ramai, Jonathan Lai, Kinesh Changela, Sury Anand
Granular cell tumors (GCTs) are rare and benign tumors that can occur at any anatomical site. GCTs are thought to originate from nerve cells, particularly Schwann cells. Their name derives from the fact that an accumulation of cytoplasmic lysosomes imparts the tumor with a granular appearance. They are most commonly observed in the oral cavity, skin and subcutaneous tissue, breast, and respiratory tract. Granular cell tumors rarely affect the gastrointestinal tract. We report a 58-year-old female with a past medical history of hypertension, mitral valve prolapse, and depression who presented for surveillance colonoscopy...
January 2, 2018: Curēus
Chao-Chun Yang, Tak-Wah Wong, Chih-Hung Lee, Chien-Hui Hong, Chung-Hsing Chang, Feng-Jie Lai, Shang-Hung Lin, Ching-Chi Chi, Tzu-Kai Lin, Hsi Yen, Chin-Han Wu, Hamm-Ming Sheu, Cheng-Che E Lan
BACKGROUND: Currently available topical treatments for actinic keratosis (AK) are associated with substantial side-effects. OBJECTIVES: To evaluate the efficacy and safety of topical SR-T100 gel in treating AK. METHODS: A multicenter, randomized, double-blinded phase III trial was conducted. Patients with at least two clinically visible AK were enrolled and a punch biopsy was performed on one of the AK to confirm the diagnosis. This study consisted of up to 16-week treatment and 8-week post-treatment periods...
March 2, 2018: Journal of Dermatological Science
L Schmitz, T Gambichler, C Kost, G Gupta, M Stücker, E Stockfleth, T Dirschka
BACKGROUND: In addition to the extent of atypical keratinocytes throughout the epidermis, actinic keratoses (AKs) are histologically characterized by downward directed basal layer expansion. It is not known if this growth pattern correlates with the risk of developing invasive squamous cell carcinoma (iSCC). OBJECTIVE: To characterize the prevalence of downward directed basal layer expansion of AKs adjacent to iSCC. METHODS: The epidermis overlying and adjacent to iSCCs was assessed histologically...
March 11, 2018: British Journal of Dermatology
Vinicius Coelho Carrard, Michelle Roxo Gonçalves, Jéssica Rodriguez Strey, Carlos Pilz, Marco Antonio Trevizani Martins, Manoela Domingues Martins, Carlos Aita Schmitz, Rafael Gustavo Dal Moro, Otávio Pereira D'Ávila, Dimitris Rucks Varvaki Rados, Erno Harzheim, Marcelo Rodrigues Gonçalves
OBJECTIVE: The diagnosis of oral lesions are often challenging for primary health care providers, which explains the high number of referrals to specialist care. This favors increases in waiting lines and delays in diagnosis, contributing to high mortality rates from oral cancer. This study aimed to summarize the experience of the EstomatoNet, a telediagnosis program catering to primary care dentists and physicians from southern Brazil. STUDY DESIGN: This exploratory study included all queries received by EstomatoNet from June/2015 to December/2016...
March 5, 2018: Oral Diseases
Takashi Semba, Eiji Sugihara, Nagisa Kamoshita, Sayaka Ueno, Keitaro Fukuda, Masafumi Yoshino, Kazumasa Takao, Kazunori Yoshikawa, Kenji Izuhara, Yoshimi Arima, Makoto Suzuki, Hideyuki Saya
Metastasis is the leading cause of cancer deaths. A tumor-supportive microenvironment, or premetastatic niche, at potential secondary tumor sites plays an important role in metastasis, especially in tumor cell colonization. Although a fibrotic milieu is known to promote tumorigenesis and metastasis, the underlying molecular contributors to this effect have remained unclear. Here we show that periostin, a component of the extracellular matrix that functions in tissue remodeling, has a key role in formation of a fibrotic environment that promotes tumor metastatic colonization...
March 2, 2018: Cancer Science
Lindita Zendeli-Bedjeti, Mirjana Popovska, Aneta Atanasovska-Stojanovska, Sotirija Duvlis
Oral premalignant lesions (OPLs) and numerous alterations of oral mucosa remain unsolved due to their complex etiopathogenesis. Human papillomaviruses (HPVs), in particular, have been reported as the possible risk factors or cofactors. The aim of the study was to determine the association of different HPV types with oral premalignant lesions, and the potential role of smoking and alcohol use. Eighty patients (mean age ± SD, 52.45±5.56) of both genders, 19 (23.75%) male and 61 (76.25%) female, were enrolled in the study...
September 2017: Acta Clinica Croatica
Kyohei Yasuno, Kumi Honda, Shinobu Hakamata, Kiyonori Kai, Kazuhiko Mori
Minimal change disease (MCD) can be experimentally induced in rats, but spontaneous cases have not been reported. Herein, we present a case of MCD in rats that resembled the phenotypes of human MCD. A 9-week-old male Sprague Dawley rat developed continuous albuminuria for 2 weeks and was sacrificed at 11 weeks of age. Histological testing revealed no glomerular or renal tubular abnormalities on light microscopy. Immunofluorescence revealed absence of immunoglobulin G or immunoglobulin M deposition in the glomerulus...
January 2018: Journal of Toxicologic Pathology
I Longo, C Serra-Guillén
OBJECTIVE: This study was aimed to examine patients' knowledge, behaviours and attitudes regarding actinic keratosis (AK) lesions and the impact of the disease on patients' quality of life (QoL). METHODS: Observational study of patients with AK lesions in Spain. QoL was evaluated with the validated version of Spanish AKQoL questionnaire. Skin self-examination, sun-exposure, habits and attitudes towards AK's treatment were recorded using different questionnaires...
February 21, 2018: Actas Dermo-sifiliográficas
Yi-Quan Xiong, Yun Mo, Yu-Qi Wen, Ming-Ji Cheng, Shu-Ting Huo, Xue-Jiao Chen, Qing Chen
Optical coherence tomography (OCT) is an emergent imaging tool used for noninvasive diagnosis of skin diseases. The present meta-analysis was carried out to assess the accuracy of OCT for the diagnosis of skin cancer. We conducted a systematic literature search though EMBASE, Medline, PubMed, the Cochrane Library, and Web of Science database for relevant articles published up to June 6, 2017. The quality of the included studies was assessed using the QUADAS-2 tool and the Oxford Levels of Evidence Scale. Statistical analyses were conducted using the software Meta-Disc version 1...
February 2018: Journal of Biomedical Optics
Jimmy Lam, Samantha R Ellis, Raja K Sivamani
Eruptive actinic keratosis (AK) consequent to systemic chemotherapy can be confused with drug allergies. We present the first case of inflamed AKs in one patient after receiving combination therapy with pemetrexed and carboplatin.A 68-year-old woman with non-small cell lung adenocarcinoma (NSCLC) presented with numerous pruritic ill-defined, gritty, erythematous papules consistent with AKs on her upper chest, upper back, and arms two weeks after completing the first cycle of combination therapy with carboplatin and pemetrexed...
October 15, 2017: Dermatology Online Journal
T Gracia-Cazaña, A Milagro, F Queipo, Y Gilaberte
Actinic keratoses are cutaneous lesions that appear as the result of the proliferation of atypical keratinocytes. These lesions are considered pre-malignant and they can progress to squamous cell carcinoma. Ingenol mebutate has been approved as an effective treatment for AK on the face and trunk. We studied the local skin reactions to this therapy. Data about local skin reactions were collected in a series of 5 patients with photographic documentation, a visual analog scale, and a ranking of satisfaction of the patient...
September 19, 2017: Dermatology Online Journal
Alberto Conde-Taboada, Bárbara Mercado, Beatriz Aranegui, Elena González-Guerra, Eduardo López-Bran
Actinic keratoses are cutaneous lesions that appear as the result of the proliferation of atypical keratinocytes. These lesions are considered pre-malignant and they can progress to squamous cell carcinoma. Ingenol mebutate has been approved as an effective treatment for AK on the face and trunk. We studied the local skin reactions to this therapy. Data about local skin reactions were collected in a series of 5 patients with photographic documentation, a visual analog scale, and a ranking of satisfaction of the patient...
September 15, 2017: Dermatology Online Journal
Yasunori Enomoto, Sayomi Matsushima, Shiori Meguro, Hideya Kawasaki, Isao Kosugi, Tomoyuki Fujisawa, Noriyuki Enomoto, Naoki Inui, Yutaro Nakamura, Takafumi Suda, Toshihide Iwashita
Pathologic differential diagnoses of pleuroparenchymal fibroelastosis (PPFE) include usual interstitial pneumonia (UIP) and pulmonary apical cap (PAC); however, there are no specific immunostaining makers to distinguish between these diseases. We performed immunohistochemistry using several pleural mesothelial cell-related markers, including cytokeratin-5/6, CAM5.2, WT-1, calretinin, desmin and podoplanin, for PPFE (n = 4), UIP (n = 10) and PAC (n = 3) lung sections. Among the examined markers, in PPFE and PAC lungs, podoplanin commonly showed positivity for spindle cells both in thickened pleura and subpleural fibroelastosis lesions; these cells were also stained with α-smooth muscle actin, a marker of myofibroblasts...
February 22, 2018: Histopathology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"