Skin inflammatory response and efficacy of anti-epidermal growth factor receptor therapy in metastatic colorectal cancer (CUTACETUX).

Anti-epidermal growth factor receptor (EGFR) monoclonal antibody is a standard treatment of metastatic colorectal cancer (mCRC) and its most common adverse effect is a papulopustular acneiform rash. The aim of the CUTACETUX study was to characterize the skin inflammatory response associated with this rash and its relation to treatment efficacy. This prospective study included patients with mCRC treated with first-line chemotherapy plus cetuximab.

Oncostatin M exerts a protective effect against excessive scarring by counteracting the inductive effect of TGFβ1 on fibrosis markers.

Wound healing is a complex physiological process that repairs a skin lesion and produces fibrous tissue. In some cases, this process can lead to hypertrophic scars (HS) or keloid scars (KS), for which the pathophysiology remains poorly understood. Previous studies have reported the presence of oncostatin M (OSM) during the wound healing process; however, the role of OSM in pathological scarring remains to be precisely elucidated.

Interleukin-17A-induced production of acute serum amyloid A by keratinocytes contributes to psoriasis pathogenesis.

Background: Acute-serum Amyloid A (A-SAA), one of the major acute-phase proteins, is mainly produced in the liver but extra-hepatic synthesis involving the skin has been reported. Its expression is regulated by the transcription factors NF-κB, C/EBPβ, STAT3 activated by proinflammatory cytokines.

Objectives: We investigated A-SAA synthesis by resting and cytokine-activated Normal Human Epidermal Keratinocytes (NHEK), and their inflammatory response to A-SAA stimulation.

Ultrastructural study of liver and lead tissue concentrations in young mallard ducks (Anas platyrhynchos) after ingestion of single lead shot.

Lead (Pb) represents a serious threat to wildlife and ecosystems. The aim of this study was to examine the subcellular effects of dietary Pb pellet ingestion on mallard (Anas platyrhynchos) livers. After ingestion of a single Pb shot (LS4 size class: 0.

High-Fat Diet-Induced IL-17A Exacerbates Psoriasiform Dermatitis in a Mouse Model of Steatohepatitis.

Recent studies suggest that psoriasis may be more severe in patients with nonalcoholic fatty liver disease, particularly in those with the inflammatory stage of steatohepatitis [nonalcoholic steatohepatitis (NASH)]. Herein, we investigated the impact of diet-induced steatohepatitis on the severity of imiquimod-induced psoriasiform dermatitis. Mice fed with a high-fat diet developed steatohepatitis reminiscent of human NASH with ballooning hepatocytes and significant liver fibrosis.

[Mucinous nevus of late onset].

Introduction: Mucinous nevus is a rare disease characterized by mucin deposits in the dermis, with only 23 cases reported to date. It belongs to the connective tissue nevus family and is characterized by dermal mucin deposits. Two histological subtypes have been described: pure mucinous dermal nevus (connective tissue nevus of the proteoglycan [CTNP]) and combined mucinous nevus (combined CTNP) associating epidermal nevus with dermal mucin deposits.

[Metastatic lymph node collision of a prostatic adenocarcinoma and an urothelial carcinoma and review of the literature].

Introduction: Tumor collision is the encounter of two tumors from two different topographical sites. Cases of metastatic lymph node collision are exceptional. We report the case of a metastatic lymph node collision of an urothelial carcinoma and a prostatic adenocarcinoma.

Thyroid Hürthle cell tumors: research of potential markers of malignancy.

Introduction: Hurthle cell tumors (HCTs) are rare thyroid neoplasia. To date, capsular and/or vascular invasion are the only findings predicting malignancy. Recently, mutation of 19p13, encoding two proteins involved in cell proliferation and apoptosis (GRIM-19 and p19), has been described.

[Adult kwashiorkor: a rare complication of bariatric surgery].

Introduction: Kwashiorkor is a clinical manifestation of global protein-calorie malnutrition that is described mainly in children in developing countries initially presenting eczema-like skin disease associated with hydrops.

Observation: We report the case of a 44-year-old woman with dark skin who had undergone bariatric surgery for treatment of stage-III obesity without regular monitoring and who was hospitalized in our dermatology department four years later. She had diffuse oedema and asteatotic eczema-like cutaneous lesions on pigmented skin that had developed for two months despite daily application of topical corticosteroids.

Prognostic Relevance of Histomolecular Classification of Diffuse Adult High-Grade Gliomas with Necrosis.

Diffuse adult high-grade gliomas (HGGs) with necrosis encompass anaplastic oligodendrogliomas (AOs) with necrosis (grade III), glioblastomas (GBM, grade IV) and glioblastomas with an oligodendroglial component (GBMO, grade IV). Here, we aimed to search for prognostic relevance of histological classification and molecular alterations of these tumors. About 210 patients were included (63 AO, 56 GBM and 91 GBMO).

[Dermato-neuro syndrome during scleromyxedema: efficacy of plasmapheresis and intravenous immunoglobulin].

Background: Dermato-neuro syndrome is a specific neurological complication of scleromyxedema presenting with fever, coma, seizures and flu-like syndrome. To our knowledge, it has only been reported about twenty times in the literature. Its outcome is uncertain.

EGFR, KRAS, BRAF, and HER-2 molecular status in brain metastases from 77 NSCLC patients.

The aim of this study was to determine the frequency of EGFR, KRAS, BRAF, and HER-2 mutations in brain metastases from non-small cell lung carcinomas (BM-NSCLC). A total of 77 samples of BM-NSCLC were included and 19 samples of BM from breast, kidney, and colorectal tumors were also studied as controls. These samples were collected from patients followed between 2008 and 2011 at Poitiers and Nice University Hospitals in France.

Epidermal growth factor receptor (EGFR) and KRAS mutations during chemotherapy plus anti-EGFR monoclonal antibody treatment in metastatic colorectal cancer.

It is now well established that metastatic colorectal cancer patients without KRAS mutation (codon 12) benefit from treatment with an epidermal growth factor receptor monoclonal antibody (anti-EGFR mAb). Recently, EFGR and KRAS mutations have been shown to exist in patients who developed resistance to anti-EGFR mAb. We analyzed KRAS, BRAF V600E and EGFR S492R mutations in 37 post-anti-EGFR mAb tumor samples from 23 patients treated with chemotherapy plus anti-EGFR mAb.

Effect of low-frequency KRAS mutations on the response to anti-EGFR therapy in metastatic colorectal cancer.

Background: Only patients with wild-type (WT) KRAS tumors benefit from anti-epidermal growth factor receptor (EGFR) monoclonal antibodies (Mabs) in metastatic colorectal cancer (mCRC). Pyrosequencing is now widely used for the determination of KRAS mutation burden and a conservative cut-off point of 10% has been defined. Up until now, the impact of low-frequency KRAS mutations (<10%) on the response to anti-EGFR Mabs has yet to be evaluated.

Comprehensive re-sequencing of adrenal aldosterone producing lesions reveal three somatic mutations near the KCNJ5 potassium channel selectivity filter.

Background: Aldosterone producing lesions are a common cause of hypertension, but genetic alterations for tumorigenesis have been unclear. Recently, either of two recurrent somatic missense mutations (G151R or L168R) was found in the potassium channel KCNJ5 gene in aldosterone producing adenomas. These mutations alter the channel selectivity filter and result in Na(+) conductance and cell depolarization, stimulating aldosterone production and cell proliferation.

Malignant pheochromocytoma: new malignancy criteria.

Purpose: The pathological diagnosis of malignancy in pheochromocytomas remains a controversial issue. According to the WHO, malignancy is defined in the presence of metastasis. Multiparameter scoring systems such as PASS (Pheochromocytoma of Adrenal gland Scaled Score) have been used but remain controversial.

Altered expression of the gap junction protein connexin43 is associated with papillary thyroid carcinomas when compared with other noncancer pathologies of the thyroid.

Background: Gap junctions are membrane structures composed of connexins (Cx) that allow diffusion of small molecules between cells. They are involved in tissue homeostasis, and various organ dysfunctions have been associated with gap junction defects. To verify their possible involvement in thyroid pathologies, the expression of connexin43 (Cx43), the major Cx in the human thyroid, was evaluated in a variety of diseases including cancer.

Automated classification of free-text pathology reports for registration of incident cases of cancer.

Objective: Our study aimed to construct and evaluate functions called "classifiers", produced by supervised machine learning techniques, in order to categorize automatically pathology reports using solely their content.

Methods: Patients from the Poitou-Charentes Cancer Registry having at least one pathology report and a single non-metastatic invasive neoplasm were included. A descriptor weighting function accounting for the distribution of terms among targeted classes was developed and compared to classic methods based on inverse document frequencies.

[Importance of thorough removal of all affected tissues before grafting epidermolysis bullosa lesions: ten-year follow-up of one patient with multiple grafts].

We present the case of a patient suffering from dominantly inherited dystrophic epidermolysis bullosa and followed over a period of ten years. Skin lesions of this patient have been treated with multiple thin skin grafts applied over Integra®. The experience proved that, in order to have a perfect graft take, it was necessary to remove all the affected tissues, which includes an abnormally thickened dermis, and also a portion of the subcutaneous tissue.

[Severe skin reaction with mucous membrane inflammation during MINE chemotherapy].

Background: MINE chemotherapy is used to treat refractory Hodgkin's disease. Cutaneous adverse effects of MINE regimen are uncommon and chiefly consist of erythema and oedema of the extremities. More recently, a number of cases of panniculitis and subcutaneous inflammatory oedema have been described.