Abstract：
:Langerhans cell histiocytosis (LCH) is a disorder of myeloid neoplasia of dendritic cells that affects 1 in 200,000 children <15 years of age and even fewer adults. LCH presents with a spectrum of clinical manifestations. High-risk stratification is reserved for infiltration of blood, spleen, liver, and lungs. After decades of debate on the disease pathogenesis, a neoplastic mechanism is now favored on the basis of LCH cell clonality, rare cases of familial clustering, and recent evidence of mutations involving the Ras/Raf/MEK (mitogen-activated protein kinase kinase)/ERK (extracellular signal-regulated kinase) pathway in lesional biopsy specimens. Somatic mutations are most often found in BRAF (BRAFV600E in 47.1% of reported patients) and MAP2K1 (21.7%) and uncommonly found in MAP3K1 or ARAF. Increased levels of phospho-ERK in lesional tissue, activation of Ras/Raf/MEK/ERK signaling with these mutations in vitro, and the mutual exclusivity of these mutations in a given patient suggest a central role for activation of the Ras/Raf/MEK/ERK oncogenic pathway in LCH. Immunohistochemical assessment of lesional tissue using the VE1 BRAFV600E mutation-specific antibody can serve as a screening tool for BRAFV600E-positive LCH. Case reports suggest that BRAFV600E-positive LCH unresponsive to standard therapy might respond to B-Raf-MEK pathway inhibition, but rigorous randomized clinical trials have yet to be performed.
journal_name
J Am Acad Dermatoljournal_title
Journal of the American Academy of Dermatologyauthors
Tran G,Huynh TN,Paller ASdoi
10.1016/j.jaad.2017.09.022subject
Has Abstractpub_date
2018-03-01 00:00:00pages
579-590.e4issue
3eissn
0190-9622issn
1097-6787pii
S0190-9622(17)32424-6journal_volume
78pub_type
杂志文章,评审abstract：:Meibomian carcinoma is rare but carries a grave prognosis. The lesion may be easily mistaken for inflammatory condition. Therefore, any nodular or recurrent lesion on the eyelid of an elderly person should be examined histologically. A case is presented in which the tumor was successfully treated by the Mohs microscop...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(80)80185-x
更新日期：1980-09-01 00:00:00
abstract：:Epithelioid hemangioendothelioma is an uncommon malignant vascular tumor usually involving soft tissue and, in rare cases, the skin. Histologically and biologically it is considered to be a borderline neoplasm between an angiolymphoid hyperplasia with eosinophilia and an epithelioid angiosarcoma. Here we describe an 1...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1067/mjd.2003.416
更新日期：2003-07-01 00:00:00
abstract：BACKGROUND:Vulvar lichen sclerosus is a chronic condition usually responsive to topical corticosteroids. OBJECTIVE:We sought to evaluate the efficacy (reduction of signs and symptoms) and safety of clobetasol propionate 0.05% and tacrolimus 0.1% in the treatment of vulvar lichen sclerosus. METHOD:This double-blind, r...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jaad.2014.02.019
更新日期：2014-07-01 00:00:00
abstract：BACKGROUND:Many factors influence anxiety and satisfaction of patients undergoing Mohs micrographic surgery (MMS). OBJECTIVE:We sought to determine the effect of a preoperative educational telephone call on anxiety and satisfaction for patients undergoing same-day office consultation and MMS. METHODS:Patients with sk...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.jaad.2016.09.027
更新日期：2017-03-01 00:00:00
abstract：:Sulfur is a time-honored therapeutic agent useful in a variety of dermatologic disorders. Its keratolytic action is due to formation of hydrogen sulfide through a reaction that depends upon direct interaction between sulfur particles and keratinocytes. The smaller the particle size, the greater the degree of such inte...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(88)70079-1
更新日期：1988-03-01 00:00:00
abstract：:Ticks are ectoparasites that cause dermatologic disease directly by their bite and indirectly as vectors of bacterial, rickettsial, protozoal, and viral diseases. In North America, where ticks are the leading cause of vector-borne infection, dermatologists should recognize several tick species. Basic tick biology and ...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1067/s0190-9622(03)01868-1
更新日期：2003-09-01 00:00:00
abstract：:Chemical peeling, or chemexfoliation, has been used for centuries to improve signs of ultraviolet light-induced sun damage. Over the last 30 years, the science behind chemical peeling has evolved, increasing our understanding of the role of peeling ingredients and treatment indications. The depth of peels is directly ...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/j.jaad.2018.10.079
更新日期：2019-08-01 00:00:00
abstract：:We describe a female patient with an acute purpuric and bullous eruption mainly affecting the lower aspect of the legs. Skin biopsy specimens demonstrated microvascular occlusions with fibrin thrombi but no dermal inflammation. Intermediate hyperhomocysteinemia and transient antiphospholipid antibodies were evidenced ...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1067/mjd.2003.340
更新日期：2003-08-01 00:00:00
abstract：:A tense yellow vesicle was noted on the back parietal scalp of a female newborn. This proved to be a bullous variant of aplasia cutis congenita. Only 16 cases of this apparently rare disorder have been previously reported. Histologic evaluation of such lesions reveals a distinct pattern containing fibrovascular stroma...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1067/mjd.2003.150
更新日期：2003-05-01 00:00:00
abstract：:Pyoderma gangrenosum (PG) has four distinctive clinical and histologic variants. Some have morphologic and histologic overlapping features with other reactive neutrophilic skin conditions. PG often occurs in association with a systemic disease, and the specific clinical features of the skin lesion may provide a clue t...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/s0190-9622(96)90428-4
更新日期：1996-03-01 00:00:00
abstract：:A patient with fluoroscopy-induced subacute radiation dermatitis is described. Her biopsy specimen showed vacuolar change and necrotic keratinocytes with lymphocytes in direct apposition, or "satellitosis". Lymphocytes in the dermis and infiltrating the epidermis were predominantly CD8+ and a number of the lymphocytes...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/s0190-9622(98)70577-8
更新日期：1998-02-01 00:00:00
abstract：BACKGROUND:Pulsed dye laser treatment and other cosmetic procedures result in significant bruising. Claims have been made regarding the efficacy of topical vitamin K in both preventing and speeding the clearing of bruising; however, well-controlled studies are lacking. OBJECTIVE:The purpose of this study is to evaluat...
journal_title：Journal of the American Academy of Dermatology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1067/mjd.2002.120465
更新日期：2002-08-01 00:00:00
abstract：:A cutaneous and soft tissue reaction that resulted from a broken thermometer inside the mouth of a 10-year-old boy is described. Metallic mercury globules and glass pieces were identified in the excised tissue. On histologic examination, a zone of necrosis, polymorphonuclear leukocytes, macrophages, and multinucleated...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/0190-9622(91)70283-8
更新日期：1991-11-01 00:00:00
abstract：:In recognition of continuing increases in the incidence of skin cancer, including malignant melanoma, the American Academy of Dermatology has encouraged dermatologic communities nationwide to offer free skin cancer screening to the public. Memorial Sloan-Kettering Cancer Center took part in one such effort last spring...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(86)70169-2
更新日期：1986-08-01 00:00:00
abstract：:Pathologic T-cell activation is implicated in psoriasis progression. CD80, a costimulatory molecule involved in T-cell activation, likely plays a key role. IDEC-114, an IgG(1) anti-CD80 antibody, was evaluated for safety, pharmacokinetics, and preliminary clinical activity in this open-label, single-dose, dose-escalat...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1067/mjd.2002.124698
更新日期：2002-11-01 00:00:00
abstract：BACKGROUND:The reported prevalence and degrees of Demodex mite infestation in rosacea vary widely. OBJECTIVE:We sought to conduct an evidence-based meta-analysis of the prevalence and degrees of Demodex mite infestation in patients with rosacea. METHODS:Systematic literature review and meta-analysis were conducted. O...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jaad.2017.03.040
更新日期：2017-09-01 00:00:00
abstract：:Acute febrile neutrophilic dermatosis, first described in 1964 by Robert Douglas Sweet, has been termed Sweet's syndrome. Classic Sweet's syndrome occurs in middle-aged women after a nonspecific infection of the respiratory or gastrointestinal tract. Raised erythematous plaques with pseudoblistering and occasionally p...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/s0190-9622(94)70215-2
更新日期：1994-10-01 00:00:00
abstract：:Transepithelial elimination of granulomas was observed in histologic specimens taken from involved skin of a patient with disseminated tuberculosis and two patients with sarcoidosis. This phenomenon, previously also observed in other granulomatous disorders, represents one of the skin's several mechanisms to rid itsel...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(86)70016-9
更新日期：1986-01-01 00:00:00
abstract：BACKGROUND:Oral methoxsalen (psoralen) and ultraviolet A radiation (PUVA) is a highly effective therapy for psoriasis and many other skin conditions. It is carcinogenic. Previously we reported an increased risk of melanoma that first emerged 15 years after first treatment. OBJECTIVE:Our purpose is to present additiona...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,多中心研究
doi：10.1067/mjd.2001.114576
更新日期：2001-05-01 00:00:00
abstract：BACKGROUND:Trichoadenoma is a rare benign follicular tumor first described by Nikolowski 50 years ago. Both trichoadenoma and desmoplastic trichoepithelioma are composed of cords of epithelial cells and cornifying cysts embedded in sclerotic stroma. In trichoadenoma the cystic component predominates, while desmoplastic...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/j.jaad.2009.06.086
更新日期：2010-02-01 00:00:00
abstract：BACKGROUND:Pemphigus vulgaris (PV) shows autoimmune reaction against desmoglein 3 (Dsg3), whereas paraneoplastic pemphigus (PNP) shows autoimmune reaction against Dsg3 as well as numerous members of the plakin family. It has been demonstrated that in PV, dominant epitopes reside in N-terminal adhesive regions of Dsg3 a...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(03)02160-1
更新日期：2003-12-01 00:00:00
abstract：:The Publisher regrets that this article is an accidental duplication of an article that has already been published, https://doi.org/10.1016/j.jaad.2020.09.006. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/j.jaad.2020.09.014
更新日期：2020-09-14 00:00:00
abstract：:This is the second reported case of minocycline-induced Sweet's syndrome (and the first such case to appear in the American literature). The syndrome developed in a 32-year-old man 10 days after minocycline therapy for acne was begun and resolved rapidly after discontinuation of the medication and start of oral predni...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/0190-9622(92)70251-a
更新日期：1992-11-01 00:00:00
abstract：BACKGROUND:The International Dermatology Outcome Measures established a set of core domains to be measured in all psoriasis trials. This set requires that symptoms of psoriatic arthritis (PsA) be measured in all psoriasis studies. OBJECTIVE:To identify the approach to PsA screening and the most appropriate outcome mea...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/j.jaad.2019.05.075
更新日期：2020-01-01 00:00:00
abstract：:With the growth of dermatologic surgery the appropriate use of local anesthesia is becoming an important issue. Thoughtful use of local anesthesia can improve the patient's experience and facilitate the surgical procedure. In this review we discuss historical and pharmacologic aspects of local anesthetic agents. Empha...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1016/s0190-9622(88)70213-3
更新日期：1988-10-01 00:00:00
abstract：:Mycobacterium avium complex, a common opportunistic pathogen among patients with AIDS, usually manifests as disseminated disease involving the lung, lymph nodes, and gastrointestinal tract. Primary cutaneous infections with M avium complex are extremely rare, and most cutaneous lesions are caused by dissemination. Cut...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,评审
doi：10.1067/mjd.2002.108486
更新日期：2002-11-01 00:00:00
abstract：BACKGROUND:Lack of agreement on how to accurately capture disease outcomes in localized scleroderma (LS) has hindered the development of efficacious treatment protocols. The LS Cutaneous Assessment Tool (LoSCAT), consisting of the modified LS Skin Severity Index (mLoSSI) and the LS Damage Index, has potential for use i...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/j.jaad.2013.02.007
更新日期：2013-08-01 00:00:00
abstract：:The case presented here involves a 32-year-old homosexual man with human immunodeficiency virus (HIV) seropositivity and unusual manifestations of secondary syphilis. The patient presented with syphilitic keratoderma and chorioretinitis, and his appearance superficially resembled that of a patient with Reiter's syndro...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(88)70062-6
更新日期：1988-02-01 00:00:00
abstract：:Dacarbazine (DTIC-Dome) is a widely used chemotherapeutic agent employed in the therapy of malignant melanoma. In this communication, we present two patients who developed photosensitivity skin reactions immediately after its administration. Physicians using dacarbazine should be aware of this side effect and should i...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章
doi：10.1016/s0190-9622(81)70053-7
更新日期：1981-05-01 00:00:00
abstract：BACKGROUND:Ipilimumab is a human antibody that inhibits cytotoxic T-lymphocyte-associated antigen 4, leading to increases in T-cell activation and interleukin 2 secretion and has been approved for the treatment of advanced melanoma. Dermatologic adverse events such as rash, pruritus, and vitiligo have been reported in ...
journal_title：Journal of the American Academy of Dermatology
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jaad.2012.12.963
更新日期：2013-09-01 00:00:00
