残毁性掌跖角化病

报告1例残毁性掌跖角化病.患者女,21岁.因掌跖角化过度11年,双手指远端指间关节环形缩窄半个月,左手中指远端指间关节伸侧破溃4d就诊.右手皮损组织病理检查:表皮角化过度,颗粒层、棘层肥厚,表皮突延长,真皮浅层小血管周围散在淋巴细胞浸润.诊断:残毁性掌跖角化病.     

弥漫性非表皮松解性掌跖角化病1例

1病历摘要 患者女,42岁。闲双侧掌跖角化40余年,于2006年9月来我院就诊。患者自婴儿期起无明显诱凶双手掌出现对称性片状红斑,角化,形状不规则．受累皮肤粗糙增厚,同时累及双足和甲板,指（趾）甲增厚、浑浊,呈灰黄色。皮损逐渐向周同扩展,至青春期时已经累及双手整个掌侧、腕部及于背的大部分,双足跖和足背亦呈弥漫性角化过度,跖部较重,皮损呈对称性,     

掌跖角皮症伴牙周病1例

患者男,18岁。掌跖红斑和角化18年,伴牙齿脱落12年。掌跖部和踝关节皮肤有对称性大片红斑、鳞屑、角化性增厚和皲裂。切牙和尖牙部分脱落,牙齿有不同程度松动,牙龈萎缩。诊断:掌跖角皮症伴发牙周病。     

表皮松解性掌跖角化病1例

报告1例表皮松解性掌跖角化病。患者女,26岁。双侧掌跖角化20余年。皮肤科检查见双侧掌跖对称性角化性斑块。皮损组织病理检查示表皮角化过度,颗粒层增厚,棘层及颗粒层中有较多裂隙,裂隙处细胞界限不清,由淡染物质或透明角质颗粒组成。组织病理改变符合表皮松解性掌跖角化病诊断。采用阿维A治疗后皮损明显改善。     

KRT9基因突变所致表皮松解性掌跖角化病1例

报告KRT9基因突变所致表皮松解性掌跖角化病1例.患者男,中国籍,32岁,手足角化性斑块30余年.皮肤科检查:双侧掌跖面可见对称性弥漫性角化斑块,皮肤粗糙增厚,呈灰黄色.皮损组织病理:表皮明显角化过度,颗粒层棘层增厚,皮突延长,颗粒细胞变性,考虑掌跖角化病.基因全外显子组测序结果:KRT9基因外显子检测出c.487C＞...     

一家三代九例先天性厚甲综合征

先证者 女, 26岁,工人,指、趾甲增厚伴掌跖角化过度及口腔粘膜白斑 25年。患者于出生后 10个月时, 20甲开始增厚、发黄、混浊伴口腔粘膜白斑。 4岁时发现掌跖皮肤增厚、皲裂及摩擦后起水疱,不痒。仅在皲裂较深处和疱破后所形成的糜烂面有轻重不等的疼痛感;父母非近亲结婚。 体检：各系统检查无异常。皮肤科情况：头发稀少无光泽, 20甲均增厚、混浊,呈褐黄色,部分甲边缘翘起,如马蹄状,甲周皮肤发红、肿胀, 掌跖部皮肤增厚,多处皲裂,右足外缘可见 2个蚕豆大小的水疱,疱液清,肘膝关节伸侧可见散在粟粒大角化性丘疹,口腔颊粘…     

掌跖角化伴牙周病综合征1例

患儿男，4岁。因双手掌和足跖皮肤角化、增厚2年，胶牙牙根暴露，牙齿脱落1年，于2004年3月9日来本院皮肤科就诊。患儿2岁时出现双手掌和足跖皮肤角化；增厚和脱皮现象，逐渐加重，并伴肘膝关节皮肤增厚和脱皮现象。曾在当地医院就诊，诊断为“掌跖角皮症”，口服及外用药物治疗（具体不详）无明显效果。     

残毁性掌跖角皮症伴鱼鳞病一例

患者,女,61岁。掌跖进行性角化伴关节挛缩、疼痛60年。双手掌、足跖弥漫性角化斑块,双手指挛缩畸形,指间关节可见纤维缩窄环,关节活动障碍,四肢伸侧可及褐色多角形鳞屑。诊断为残毁性掌跖角皮症伴鱼鳞病。该例患者不伴有听力异常和智能障碍。其父母为近亲结婚,其姐有相似症状。     

角化性皮肤病

中国汉族人5家系40例点状掌跖角化病临床及遗传特点分析；遗传性掌跖角化病一家系；掌跖角化症并发牙周病；阿维A治疗多发性日光性角化病1例；日光性角化病的治疗（综述）；     

条纹状掌跖角化病一家系调查

先证者.女,53岁.双侧掌跖皮肤增厚、变硬50年于2010年6月20日到我院就诊.患者在2岁时,双掌跖部皮肤摩擦、受压后出现角化、增厚,随年龄增长,部分皮疹变为角化性斑块,并伴有皲裂、疼痛,冬季加重.毛发、指(趾)甲和牙齿均未见异常.无多汗及臭汗症,智力正常.父母非近亲结婚,其父有类似病史.患者曾在外院诊断为"手足癣"、"胼胝"等,给予对症治疗后,无明显效果.其家系4代中共有7例类似患者.     

New fillers for the new man

ABSTRACT:  Two new collagen-based lidocaine-containing dermal fillers, ArteSense™/ArteFill™ (Artes Medical, San Diego, CA) and Evolence® (Colbar LifeScience Ltd., Herzliya, Israel), have proved to be of particular interest to men, many of whom seek a long-lasting or permanent correction. ArteFill™ has been available in the United States since 2006, and it is expected that Evolence® will reach the American market in 2008. The properties of the two products will be described, and experience based on the administration of many hundreds of syringes of both products by a Canadian dermatologist will be detailed here, with tips and precautions to optimize patient outcomes.     

Outcomes and adverse effects of ablative vs nonablative lasers for skin resurfacing: A systematic review of 1093 patients

It is generally believed that ablative laser therapies result in prolonged healing and greater adverse events when compared with nonablative lasers for skin resurfacing. To evaluate the efficacy of ablative laser use for skin resurfacing and adverse events as a consequence of treatment in comparison to other modalities, a PRISMA‐compliant systematic review (Systematic Review Registration Number: 204016) of twelve electronic databases was conducted for the terms “ablative laser” and “skin resurfacing” from March 2002 until July 2020. Studies included meta‐analyses, randomized control trials, cohort studies, and case reports to facilitate evaluation of the data. All articles were evaluated for bias. The search strategy produced 34 studies. Of 1093 patients included in the studies of interest, adverse events were reported in a total of 106 patients (9.7%). Higher rates of adverse events were described in nonablative therapies (12.2% ± 2.19%, 31 events) when compared with ablative therapy (8.28% ± 2.46%, 81 events). 147 patients (13.4%) reported no side effects, 68 (6.22%) reported expected, transient self‐resolving events, and five (0.046%) presented with hypertrophic scarring. Excluding transient events, ablative lasers had fewer complications overall when compared with nonablative lasers (2.56% ± 2.19% vs 7.48% ± 3.29%). This systematic review suggests ablative laser use for skin resurfacing is a safe and effective modality to treat a range of pathologies from photodamage and acne scars to hidradenitis suppurativa and posttraumatic scarring from basal cell carcinoma excision. Further studies are needed, but these results suggest that ablative lasers are a superior, safe, and effective modality to treat damaged skin.     

Genetic alterations in RAS‐regulated pathway in acral lentiginous melanoma

Studies integrating clinicopathological and genetic features have revealed distinct patterns of genomic aberrations in Melanoma. Distributions of BRAF or NRAS mutations and gains of several oncogenes differ among melanoma subgroups, while 9p21 deletions are found in all melanoma subtypes. In the study, status of genes involved in cell cycle progression and apoptosis was evaluated in a panel of 17 frozen primary acral melanomas. NRAS mutations were found in 17% of the tumors. In contrast, BRAF mutations were not found. Gains of AURKA gene (20q13.3) were detected in 37.5% of samples, gains of CCND1 gene (11q13) or TERT gene (5p15.33) in 31.2% and gains of NRAS gene (1p13.2) in 25%. Alterations in 9p21 were identified in 69% of tumors. Gains of 11q13 and 20q13 were mutually exclusive, and 1p13.2 gain was associated with 5p15.33. Our findings showed that alterations in RAS‐related pathways are present in 87.5% of acral lentiginous melanomas.     

Self‐resolving superficial primary cutaneous mucormycosis in a 7‐week‐old infant

A 7‐week‐old girl, born at 30 weeks' gestational age, presented to clinic for evaluation of a crop of vesicular lesions that were noted after removal of a bandage that had been in place for 4 days. A punch biopsy of the lesion revealed fungal elements that were later identified as Rhizopus spp. The lesion began to self‐resolve, and no further treatment was needed, with full resolution of the lesion by 1 month after presentation. Clinicians should be aware of the variable presentations of mucormycosis and consider fungal infection in the differential diagnosis when evaluating vulnerable patients with skin eruptions.     

Multiple New-Onset Subcutaneous Nodules of the Upper Extremity Digits: Giant Cell Tumor of Tendon Sheath and Lipoma

A black woman with the concurrent onset of two subcutaneous nodules located on the digits of her upper extremities is described. Initially, a single systemic disorder was considered; yet, the lesions differed in morphology and consistency. Microscopic examination of the nodules showed a giant cell tumor of tendon sheath and a lipoma. Although Occam's “razor” suggests that multiple lesions in the same person are more likely to represent variable manifestations of a single disorder than several different diseases in that individual, the simultaneously appearing lesions in this patient represented two different conditions.