毛发红糠疹28例临床分析

目的:分析毛发红糠疹的临床特点和疗效。方法:回顾性分析28例毛发红糠疹患者的临床症状和治疗。结果:28例毛发红糠疹皮损表现为毛囊角化性丘疹和掌跖角皮症。给予阿维A 10mg每日2次口服,配合甘草酸二胺150 mg静滴及0.1%维A酸乳膏外用治疗2周后,皮损好转,4周后皮损明显消退。结论:毛发红糠疹临床表现及组织病理学检查有特征性改变。阿维A治疗有效。     

Febrile ulceronecrotic Mucha‐Habermann disease: A case with systemic symptoms managed with subcutaneous methotrexate

Febrile ulceronecrotic Mucha‐Habermann disease (FUMHD) is a rare, idiopathic, acquired dermatosis that can affect all ages and ethnic groups. We present a 10‐year‐old patient with FUMHD associated with arthritis and chronic fatigue, managed with methotrexate. Through our literature review, we also explore treatment protocols for a disease for which internationally standardized management is yet to be formulated.     

Viral exanthems in childhood. Part 3: Parainfectious exanthems and those associated with virus‐drug interactions

Viruses cause not only direct infectious exanthems, but also parainfectious exanthems, which provoke skin alterations via interactions with the immune system. These distinct exanthems, for instance Gianotti‐Crosti syndrome and pityriasis lichenoides group, do not reflect a specific pathogen but can occur in the course of many viral infections. In addition, some exanthems result from the interaction between viruses and drugs.     

局限型慢性苔藓样糠疹

报告1例局限型慢性苔藓样糠疹.患者女,28岁.左肘关节屈侧反复出现瘙痒性红色斑丘疹、鳞屑3年.皮肤科检查:左肘关节屈侧及附近皮肤见红斑、斑丘疹及鳞屑,其中夹杂有色素减退斑、瘢痕.皮损组织病理检查示表皮角化过度,局灶性角化不全和轻度海绵水肿;真皮浅层血管扩张充血明显,红细胞外渗,血管周围少量淋巴细胞浸润.根据临床和组织病理特点,诊断为局限型慢性苔藓样糠疹.     

Comparative efficacy and tolerability of Ketomousse (ketoconazole foam 1%) and ketoconazole cream 2% in the treatment of pityriasis versicolor: results of a prospective, multicentre, randomised study

Ketomousse (K), a new thermophobic formulation (ketoconazole 1%), has proven its efficacy in the treatment of dandruff, caused by the same agent as pityriasis versicolor (PV). The objective of this study was to compare the efficacy and tolerability of K thermophobic foam vs. ketoconazole cream 2% (N) in the treatment of PV. Forty-six patients (22 in K and 24 in N group) with PV involving no more than 15% of the total trunk surface were randomly assigned for treatment either with K or N once daily for 14 days. Three weeks after the completion of treatment, improvement rate and side-effects were evaluated by clinical and mycological examination (Wood's light). Follow-up was available for 81% of subjects. Complete resolution was observed in five patients (29%) in K group and in nine (47%) in N group (P = 0.291). One patient in the N group reported urticaria while no adverse events were reported for K. Both products were cosmetically acceptable with respect to feasibility of application and formulation with a preference for K. Ketomousse (1% ketoconazole) provides an equal efficacy and tolerability compared to ketoconazole cream 2%. Therefore, Ketomousse could be considered an excellent therapeutic option in the treatment of PV.     

Distribution of Malassezia species in pityriasis versicolor and seborrhoeic dermatitis in Greece. Typing of the major pityriasis versicolor isolate M. globosa

BACKGROUND: The expansion of the genus Malassezia has generated interest in the epidemiological investigation of the distribution of new species in a range of dermatoses, on which variable results have been reported from different geographical regions. No data are thus far available from South-east Europe (Greece). OBJECTIVES: To study the distribution of Malassezia species in pityriasis versicolor (PV) and seborrhoeic dermatitis (SD) and to investigate whether polymorphisms in the internal transcribed spacer (ITS) 1 region facilitate detection of M. globosa and M. sympodialis subtypes. METHODS: In total, 109 patients with PV and SD and positive Malassezia cultures were included in the study. Age, gender, primary/recurrent episode, disease extent and clinical form of PV were recorded. ITS 1 polymorphisms of M. globosa and M. sympodialis type and clinical strains were investigated by polymerase chain reaction (PCR)-single-strand conformational polymorphism (SSCP) analysis. RESULTS: Malassezia globosa was the prevalent species isolated from PV and SD either alone (77% and 39%, respectively) or in combination (13% and 18%, respectively) with other Malassezia species. The pigmented form of PV was strongly correlated with the female gender. PCR-SSCP differentiated five subgroups of M. globosa with one being associated with extensive clinical disease. All M. sympodialis isolates displayed a homogeneous ITS 1 PCR-SSCP profile. CONCLUSIONS: Malassezia species isolation rates were in agreement with those reported from South-west Europe. PCR-SSCP of the ITS 1 is useful for highlighting prospective clinical implications of M. globosa subtypes.     

Pityriasis lichenoides-like drug reaction with numerous eosinophils

Pityriasis lichenoides-like drug reactions simulate pityriasis lichenoides clinically and histopathologically, though important differences exist. As a rule, pityriasis lichenoides has minimal to no eosinophils. However, this case illustrates that pityriasis lichenoides-like drug reaction can present with numerous eosinophils. This, in our experience is not rare, but contrasts with clinical reports in the literature that describe pityriasis lichenoides-like drug reactions with minimal to no eosinophils in the infiltrate. While similar, distinguishing these diseases is important given that pityriasis lichenoides is a lymphoproliferative disorder with a more protracted clinical course that is difficult to treat. We provide histopathological clues to aid in this important distinction.     

GC-MS对鸡蛋花挥发油成分研究

目的:用气相色谱-质谱法对鸡蛋花挥发性成分进行研究。方法:用挥发油测定器提取鸡蛋花挥发油,再用GC-MS法鉴定挥发油中的化学成分。结果:在鸡蛋花挥发油中共分离出49种成分,初步鉴定出43种成分。结论:鸡蛋花挥发油中主要成分为十六烷酸、十四烷酸和亚油酸等脂肪酸及反式苦橙醇、β-芳樟醇和反式香叶醇等萜类化合物。     

杨梅核仁油的GC-MS分析

目的:明确杨梅核仁油的化学组成。方法:采用索式抽提法提取杨梅核仁油,分析其理化指标;并采用GC-MS法,对杨梅核脂肪酸成分进行了系统分析。结果:杨梅核仁得油率为21.54%;杨梅核仁油经GC-MS分析共检测出11种脂肪酸,其中亚油酸含量达40.86%,不饱和脂肪酸(亚油酸、8,11-十八碳二烯酸和9,12,15-十八碳三烯酸)含量占总量的80%左右。结论:杨梅核仁油具有较高的营养价值,是一种品质优良的油脂。     

Lichen‐planopilaris‐like scarring pattern in a patient with alopecia and pityriasis rubra pilaris

Pityriasis rubra pilaris (PRP) is an erythematous‐desquamative dermatitis that is sometimes associated with non‐scarring alopecia. Despite the fact that the disease can be disfiguring, scarring alopecia has rarely been described in this disease. Here, we present a 69‐year‐old woman who developed an erythrodermic episode of PRP associated with telogen effluvium that left an area of persistent alopecia of the scalp and resulted in hair loss in the eyebrows. The biopsy of that area of the scalp demonstrated a scarring alopecia with lichen‐planopilaris‐like features. Despite this histopathology, the alopecia responded well to treatment. This finding expands the context in which lichen planopilaris features can be found and demonstrates their good prognosis under early treatment.