A New Hydrocellular Wound Dressing Used After Dermatologic Surgery: Dermatologic Surgeons' and Patients' Perceptions.

BACKGROUND: Optimum postsurgical healing requires appropriate dressing use. OBJECTIVE: This study assessed effectiveness and tolerance of a novel, hydrocellular dressing in dermatologic surgery using validated tools, describing its use in clinical practice, and comparing surgeons' and patients' perceptions of scar evolution. METHODS: This study examined direct suture closures of surgical excisions of small- to medium-sized skin lesions on the extremities or trunk. Dressings were changed 3 times/week. The Vancouver Scar Scale (VSS) and the Patient and Observer Scar Assessment Scales (POSAS) were used to assess outcomes. Data were collected at Day 0 (D0, FLC application), Day 15 to 21 (D15-21, suture removal), and Day 45 (D45) postprocedure by the surgeon and the patient. RESULTS: There were 128 patients (mean age: 55.1 years, 56.1% women). Mean length and width of the excisions were 3.5 × 1.65 cm and the most common FLC applied was 8 × 8 cm (67.7%). Most scars had normal pigmentation, pliability, and height at D15 to 21 and D45, as reported by patients and surgeons using VSS. Patient scores on visual analog scale (VAS) were high (>8/10) and global satisfaction measured by POSAS was generally high (>7/10 at D15-21; >8/10 at D45). CONCLUSION: These dressings were effective in managing surgical excisions, as assessed by VSS, VAS, and POSAS. Further controlled studies investigating various dressings in wound repair are needed.

The contribution of large genomic deletions at the CDKN2A locus to the burden of familial melanoma.

Mutations in two genes encoding cell cycle regulatory proteins have been shown to cause familial cutaneous malignant melanoma (CMM). About 20% of melanoma-prone families bear a point mutation in the CDKN2A locus at 9p21, which encodes two unrelated proteins, p16(INK4a) and p14(ARF). Rare mutations in CDK4 have also been linked to the disease. Although the CDKN2A gene has been shown to be the major melanoma predisposing gene, there remains a significant proportion of melanoma kindreds linked to 9p21 in which germline mutations of CDKN2A have not been identified through direct exon sequencing. The purpose of this study was to assess the contribution of large rearrangements in CDKN2A to the disease in melanoma-prone families using multiplex ligation-dependent probe amplification. We examined 214 patients from independent pedigrees with at least two CMM cases. All had been tested for CDKN2A and CDK4 point mutation, and 47 were found positive. Among the remaining 167 negative patients, one carried a novel genomic deletion of CDKN2A exon 2. Overall, genomic deletions represented 2.1% of total mutations in this series (1 of 48), confirming that they explain a very small proportion of CMM susceptibility. In addition, we excluded a new gene on 9p21, KLHL9, as being a major CMM gene.

[Cutaneous vasculitis revealing a Mycoplasma pneumoniae infection]. / Vascularite cutanée révélant une infection b Mycoplasma pneumoniae.

INTRODUCTION: Mycoplasma pneumoniae is a bacterial agent that must be evoked when confronted with cutaneous vasculitis, notably within a context of fever and inflammation, and despite the absence of respiratory symptoms. OBSERVATION: A young 16 year-old boy was hospitalised for cutaneous vasculitis with fever but without respiratory symptoms. A recent M. pneumoniae sero-conversion was revealed. DISCUSSION: M. pneumoniae is an intra-cellular pathogen responsible for 20 to 35% of community-acquired pneumonia in adults. The absence of respiratory symptoms in M. pneumoniae infection is not uncommon. Extra-pulmonary complications of M. pneumoniae infections are frequent and varied, notably dermatological. Cutaneous vasculitis associated with M. pneumoniae is seldom found in the medical literature. It is reported as immune-complex -mediated vasculitis or Henoch-Schonlein purpura. Cutaneous eruptions are dominated by maculo-papular rashes and multiform erythema.