Abstract:
:Imiquimod (AldaraTM), a Toll-like receptor 7 agonist (TLR7), is known for its unique properties of being an immune response modifier and stimulator. Upon topical application, this TLR7 agonist triggers a cell-mediated immune response predominantly expressed by dendritic cells and monocytes. Local skin irritation at the application site involving erythema, pain, crusting and erosions is common and well documented. On the contrary, the specific histopathologic features associated with these treatment site reactions is not. Herein reported is a case where historical omission of imiquimod use for actinic keratosis complicated the histologic interpretation. We highlight a lupus erythematosus-like microscopic pattern and explore histopathologic features that could help in avoiding a diagnostic pitfall, as well as the relationship between TLR activation, cell-mediated immunity and skin histology.
journal_name
J Cutan Patholjournal_title
Journal of cutaneous pathologyauthors
Barr KL,Konia TH,Fung MAdoi
10.1111/j.1600-0560.2010.01592.xsubject
Has Abstractpub_date
2011-04-01 00:00:00pages
346-50issue
4eissn
0303-6987issn
1600-0560pii
CUP1592journal_volume
38pub_type
杂志文章abstract::Spontaneous regression (SR) of cancer is a rare but well-documented biological phenomenon, which is even rarer in the context of metastatic breast carcinoma. Different mechanisms of SR are still under debate, including immune-mediated response. We herein report a case of the SR of intralymphatic cutaneous metastases o...
journal_title:Journal of cutaneous pathology
pub_type:
doi:10.1111/cup.13694
更新日期:2020-08-01 00:00:00
abstract::The low-fat and fat-free spindle cell lipomas (SCLs) are rare and often mistaken for other benign and malignant morphological mimics, because of the fact that the diagnosis relies on its non-lipogenic component analysis. Here, we report the clinicopathological features of two oral SCLs (low-fat and fat-free variants)....
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章,评审
doi:10.1111/cup.13512
更新日期:2019-10-01 00:00:00
abstract::Formalin-fixed, paraffin-embedded biopsy specimens of 17 cases of squamous cell carcinoma of Marjolin's ulcer (SCC-MU), 6 cases of common SCC (SCC), and 5 cases of basal cell carcinoma (BCC) were stained with three monoclonal antikeratin antibodies (CAM 5.2, MAK-6, and MA-903), a monoclonal antivimentin antibody (V9),...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1992.tb01363.x
更新日期:1992-08-01 00:00:00
abstract:BACKGROUND:Infection with parvovirus B19 (B19) has been associated with connective tissue disease (CTD) stigmata, namely, a systemic lupus erythematosus (SLE)-like illness, seronegative polyarthritis resembling rheumatoid arthritis, and vasculitis. The dermatopathology and pathogenetic basis of such B19-associated CTD-...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1034/j.1600-0560.2000.027010505.x
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:A reduction in the expression of the pan T-cell markers CD7 and CD62L supports an endogenous T-cell dyscrasia. Previously, clone availability for CD62L restricted its application to frozen tissue sections. MATERIALS AND METHODS:A nonavidin/biotin technique to examine CD3, CD62L, and CD7 in paraffin formalin...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.0303-6987.2005.00259.x
更新日期:2005-01-01 00:00:00
abstract::Light and electron-microscopic studies were performed on the amelanotic and adjacent normal-appearing skin in patients with vitiligo. The amelanotic skin revealed complete loss of pigment and absence of melanocytes. In addition to severe degenerative changes of melanocytes, varying degree of damage was also seen in th...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1983.tb00328.x
更新日期:1983-06-01 00:00:00
abstract:BACKGROUND:Nestin is one of the intermediate filaments that are expressed in proliferating neural progenitor cells during development of the central nervous system (CNS) and peripheral nervous system. Postnatal re-expression of the protein occurs mainly under pathological conditions, including injury and neoplasia. In ...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.2006.00627.x
更新日期:2007-05-01 00:00:00
abstract::This report deals with seven examples of an epithelial cyst for which we have found no proper designation in the classification of epithelial skin cysts. Clinically, the lesion is often hyperpigmented, located in mid-dermis and shows epidermoid keratinization. The cyst contains laminated keratin, many pigmented hair s...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1982.tb01081.x
更新日期:1982-12-01 00:00:00
abstract::A 35-year-old woman was examined because of a symptomless multiple annular eruption. The lesion consisted of rings of closely set, smooth, firm papules that were brown in color. Hemosiderotic histiocytoma was diagnosed by light and electron microscopy. Ultrastructurally, the lesion consisted of fibroblastic and histio...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1981.tb01006.x
更新日期:1981-06-01 00:00:00
abstract::Confocal laser scanning microscopy (CLSM) is a new optical microscopic technique, which offers significant advantages over conventional microscopy. CLSM is microscopy of optical sections. Light, which is emitted from regions other than the focal plane, is cut off by introducing a diaphragm in the beam path. The result...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0560.1995.tb00747.x
更新日期:1995-06-01 00:00:00
abstract:BACKGROUND:BRAF inhibition has improved overall survival in patients with BRAF mutant melanoma, but this is associated with a range of known and predictable cutaneous side effects, including squamous cell carcinomas associated with RAS mutations. METHODS:We identified three severely dysplastic nevi, one atypical intra...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/cup.13401
更新日期:2019-03-01 00:00:00
abstract:BACKGROUND:Scleroderma/morphea is characterized by expansion of the dermis with thickened collagen bundles and loss of CD34(+) dermal dendrocytes. Variable elastic fiber changes have been described, but to our knowledge, no systematic study of the elastic fiber pattern correlated with CD34 expression has been reported....
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.2009.01201.x
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:The histogenesis of extramammary Paget's disease (EMPD) is still controversial. Benign pagetoid cells of the nipple first described by Toker and the similar clear cells found in white maculopapules of clear cell papulosis (CCP) have been proposed to be potential precursor cells giving rise to EMPD and primar...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1034/j.1600-0560.2001.280208.x
更新日期:2001-02-01 00:00:00
abstract::Exposure to silver-containing compounds can result in reversible discoloration of the skin, presenting as an irregular brown or black macule, which can have a clinical appearance similar to melanoma. Both the clinical scenario and the histopathology are unique. Silver nitrate darkens with exposure to light, and the ar...
journal_title:Journal of cutaneous pathology
pub_type:
doi:10.1111/cup.13851
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:The aim of this study was to evaluate the effectiveness of CD117 immunostaining for diagnosing cutaneous adnexal tumors, which has not been previously established. METHODS:CD117 immunostaining was performed on representative sections of 87 clinicopathologically confirmed cutaneous apocrine/eccrine tumors, 1...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/cup.12492
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:Studies on the precise cause of increased melanization in pigmented basal cell carcinomas (BCC) are limited. We aimed to determine whether the cause of melanization is from increased number of melanocytes or increased melanin pigment, and if there is a difference in the number of melanocytes on different sun...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/cup.12819
更新日期:2016-12-01 00:00:00
abstract:AIM:Adnexal tumors with divergent lines of differentiation are uncommon. Herein, I report a hamartoma of the eyelid with follicular, sebaceous and apocrine differentiation that exhibited prominent melanin pigmentation. METHODS:A 63-year-old white woman had a nodule present on her left upper eyelid for 15 years. The no...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.2007.00745.x
更新日期:2007-11-01 00:00:00
abstract:BACKGROUND:Fatty acid synthase (FAS), the key enzyme responsible for the synthesis of fatty acids, is weakly expressed in some normal human tissues. Recently, FAS has been demonstrated to be overexpressed in many non-neoplastic highly proliferative lesions and in aggressive carcinomas with poor outcome, including colon...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1034/j.1600-0560.2003.300104.x
更新日期:2003-01-01 00:00:00
abstract::Differing classification schemes for malignant lymphomas have been used in Europe and the United States. Attempts to translate between the principle classifications have been unsuccessful and historically it has been difficult to arrive at an unified approach. In addition, many new lymphoma entities have been recogniz...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0560.1997.tb00801.x
更新日期:1997-07-01 00:00:00
abstract::Misonidazole, a hypoxic cell radiation-sensitizer, has been used in vivo to analyze its effect on normal and x-irradiated epidermis. The drug action was evaluated 3 days after being implanted subcutaneously. The response of the epidermis and especially of the basal cells to the drug alone and in combination with x-rad...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1981.tb00991.x
更新日期:1981-04-01 00:00:00
abstract:BACKGROUND:Cutaneous mesothelioma is rare but may occur following local surgical procedures for visceral mesothelioma or as a metastasis. METHODS:A patient with pleural mesothelioma, who developed papules within chest wall scars, 14 and 15 months after pleural biopsy and thoracentesis, respectively, is reported. RESU...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.0303-6987.2004.00219.x
更新日期:2004-08-01 00:00:00
abstract::Superficial acral fibromyxoma (SAFM) is an uncommon mesenchymal soft tissue tumor with a predilection for the acral extremites and nail bed involvement. SAFM is diagnosed with clinicopathological and immunohistochemical examination. Awareness of this rare tumor is important because of amounts of benign and malignant n...
journal_title:Journal of cutaneous pathology
pub_type:
doi:10.1111/cup.13128
更新日期:2018-06-01 00:00:00
abstract::Malignant transformation occurred in pre-existing sweat gland tumors in 7 patients. Three lesions showed an histologic pattern of eccrine spiradenoma, 2 eccrine poroma, one cylindroma and one papillary eccrine adenoma. Malignant transformation was histologically characterized by the presence of solid tumor areas popul...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1987.tb00122.x
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND:Direct immunofluorescence (DIF) is a valuable tool in the diagnosis of cutaneous lupus erythematosus (LE). Our goal was to characterize the most frequent immune reactants in the skin biopsies of cutaneous LE and identify the most common immunofluorescence staining patterns. METHODS:DIF results of immunoglob...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.0303-6987.2005.00337.x
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:Ofuji's disease (OD) or eosinophilic pustular folliculitis and human immunodeficiency virus-associated eosinophilic folliculitis (HIV-EF) both show eosinophil-rich folliculocentric infiltrates, and it is not clear whether they are distinguishable pathologically. Follicular mucinosis (FM) has been observed in...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1034/j.1600-0560.2003.00076.x
更新日期:2003-05-01 00:00:00
abstract::"Adenoma sebaceum of Pringle" (ASP) is a misnomer. The tumor is not an adenoma and is not derived from sebaceous glands. The lesion is characterized by dermal fibrosis and associated vascular proliferation and dilatation. Changes in contiguous sebaceous glands and other adnexal structures are merely secondary. Thus, "...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0560.1981.tb01028.x
更新日期:1981-12-01 00:00:00
abstract::Melanoma ex blue nevus (MEBN) is a rare, aggressive, and potentially lethal neoplasm. Distinguishing MEBN from an atypical cellular blue nevus can be very challenging. We report a diagnostically difficult case of MEBN with lymph node metastases, in which single nucleotide polymorphism array and fluorescence in situ hy...
journal_title:Journal of cutaneous pathology
pub_type:
doi:10.1111/cup.13400
更新日期:2019-03-01 00:00:00
abstract::Breast implant-associated anaplastic large cell lymphoma (ALCL) is a newly described clinical and pathologic entity that typically presents as seroma in the fibrous scar around the implant. Less frequently, it presents as a solid peri-implant mass, and there have been no reports to date of cutaneous lesions as the pre...
journal_title:Journal of cutaneous pathology
pub_type:
doi:10.1111/cup.12697
更新日期:2016-07-01 00:00:00
abstract::Serum amyloid P component (SAP) is present not only in all types of cutaneous amyloidosis, but also in the normal dermal elastic fibers as well as abnormal elastic fibers, such as elastotic degeneration of elastic fibers in actinic keratosis. It was previously postulated that the colloid substance in colloid milium is...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章
doi:10.1111/j.1600-0560.1985.tb01616.x
更新日期:1985-04-01 00:00:00
abstract::Fundamental to our understanding of skin diseases and their presentation is an understanding of the pattern of their development. When we have established the molecular basis of their development we will be in a much better position to control and treat such diseases. The homeobox genes are a family of regulatory prot...
journal_title:Journal of cutaneous pathology
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0560.1993.tb01264.x
更新日期:1993-08-01 00:00:00