Active clinical trials for "Carcinoma, Basal Cell"

Perturbations in microRNA (miRNA) expression profiles has been reported for a variety of cancers. This study will be an exploratory analysis of miRNA expression in basal cell carcinoma by miRNA expression profiling using microarrays.

Determine the effectiveness of a deep shave removal as a definitive treatment for basal cell carcinoma (BCC) without the need for a follow up surgical procedure.

REGESMOHS (Registro Español de cirugía de Mohs) aims at describing effectiveness of Mohs surgery, and patient, tumor and technique factors related to adverse events and tumor recurrence. REGESMOHS is a prospective cohort, including all patients considered for Mohs surgery in participating centers. All consecutive patients are included. The only exclusion criteria are being under 18-years-old or legally incompetent. Pre-planned follow-up is as required by common clinical practice, but at least once a year for the study period.

The purpose of this study is to evaluate the efficacy of cryosurgery during continuing imiquimod application in the treatment of basal cell carcinoma of the skin.

Correlation between Mohs surgery and microscopic fluorescence photometry in determination of histological borders in Basal Cell Carcinoma .

Skin cancer is the most common cancer in Caucasians. Basal cell carcinoma (BCC) is the most frequent skin cancer with around 44.000 new tumours per year in the Netherlands, and its incidence is still rising. Prior to treatment, a punch biopsy (PB) is taken from the suspected lesion, in order to determine the subtype of BCC. There are three different histological subtypes of BCC, from least to most aggressive: superficial, nodular and aggressive. Based on the most aggressive subtype seen in the PB, a suitable surgical margin is chosen. Surgical excision (SE) is the treatment of first choice in all BCC subtypes according to the Dutch guidelines. Recent developments of non-invasive therapies for superficial BCC might be the first choice of treatment in the future. These non-invasive treatments (photodynamic therapy (PDT), Imiquimod and 5-fluorouracil (5-FU)) have better cosmetic results than SE and are therefore also used in the Maastricht University Medical Center. Drawback is a higher recurrence rate than SE. As nodular and aggressive subtypes grow deeper into the dermis, they have to be treated with SE with a 3 mm and 5 mm margin respectively. If BCC are located in the H-zone, the treatment will be Mohs micrographic surgery (MMS). Unfortunately, 30% of subtypes seen in the PB do not correspond with the subtype seen in the subsequent SE/MMS. The consequence is overtreatment and undertreatment. A potential better or equal way to determine the BCC subtype might be the clinical diagnosis. To our knowledge, there is no literature about the diagnostic value of the clinical diagnosis to determine the subtype of BCC seen in the SE/MMS specimen. We want to confirm the hypothesis that the clinical diagnosis is as good as, or even better than the histological diagnosis by PB to determine the BCC subtype in the subsequent SE/MMS. In this case, patients don't have to undergo an extra procedure, diagnostic route is shortened. - Primary objective: to establish the observed agreement of clinical diagnosis compared to histological diagnosis by to determine the most aggressive subtype of BCC - Secondary objectives: inter-observer and intra-observer variability of dermatologists and pathologists to determine subtype BCC.

The purpose of this study is to determine the difference of skin carotenoid levels between subjects with previous squamous cell carcinomas (SCC), subjects with previous basal cell carcinomas (BCC) and a control group.

The primary objective of this study is to (1) determine whether local injection of lidocaine used during Mohs surgery will elevate serum lidocaine concentrations to a level that could cause systemic symptoms and (2) determine whether sustained high levels of serum lidocaine occur after intralesional anesthesia on the face and neck. This study is a cross-sectional study of 10 subjects with basal cell carcinoma or squamous cell carcinoma of the face or neck requiring Mohs micrographic surgery. The study will consist of a brief questionnaire and blood draws during their Moh's surgical procedure.

We have compared to types of surgery to assess which one leaves the smaller surgical defect.

The aim of this study was to identify psycho-social factors associated with diagnostic delay in advanced basal cell carcinomas. Thus, the objective is to develop recommendations to better identify CBCa populations at risk, improve earlier their diagnosis and thus their care with an adequate and targeted information.