Incidental chronic lymphocytic leukaemia in a biopsy of Merkel cell carcinoma.

abstract：BACKGROUND:Histopathologic examination is sometimes inadequate for accurate and reproducible diagnosis of certain melanocytic neoplasms. As a result, more sophisticated and objective methods have been sought. The goal of this study was to identify a gene expression signature that reliably differentiated benign and mali...

journal_title：Journal of cutaneous pathology

authors： Clarke LE,Warf MB,Flake DD 2nd,Hartman AR,Tahan S,Shea CR,Gerami P,Messina J,Florell SR,Wenstrup RJ,Rushton K,Roundy KM,Rock C,Roa B,Kolquist KA,Gutin A,Billings S,Leachman S

更新日期：2015-04-01 00:00:00

abstract：:Epithelioid cells with foamy cytoplasm (histiocytoid features) are typical histopathologic findings among benign and malignant histiocytic neoplasms such as xanthoma and atypical fibroxanthoma. However, these changes are unusual in melanoma, which is typically composed of nested and variably pigmented atypical epithel...

journal_title：Journal of cutaneous pathology

authors： Farah M,Nagarajan P,Torres-Cabala CA,Curry JL,Amaria RN,Wargo J,Tawbi H,Ivan D,Prieto VG,Tetzlaff MT,Aung PP

更新日期：2018-07-01 00:00:00

abstract：BACKGROUND:The Fli-1 transcription factor functions in cellular proliferation and tumorigenesis. Its role in various neoplasms and its presence in lymphocytes suggest a link between Fli-1 dysregulation and the pathogenesis of mycosis fungoides (MF). In this study, we further elucidate this possible link. METHODS:Secti...

journal_title：Journal of cutaneous pathology

authors： Quick CM,Smoller BR,Hiatt KM

更新日期：2006-09-01 00:00:00

abstract：:Carcinoembryonic antigen (CEA) is a well-established marker for sweat gland differentiation in adnexal neoplasms. In contrast to previous assumptions, CEA does not represent a single oncofetal antigen but comprises a family of homologous glycoproteins, i.e. the classical CEA-180, biliary glycoprotein (BGP), and non-sp...

journal_title：Journal of cutaneous pathology

authors： Metze D,Grunert F,Neumaier M,Bhardwaj R,Amann U,Wagener C,Luger TA

更新日期：1996-02-01 00:00:00

abstract：:In the past decades, the incidence of melanoma has been reported to rise in epidemic proportions. The chief reason for that pseudo-epidemic is improved criteria for diagnosis that allow melanomas to be recognized far more accurately and at earlier stages. The rising number of melanomas diagnosed has resulted in increa...

journal_title：Journal of cutaneous pathology

authors： Weyers W

更新日期：2012-01-01 00:00:00

abstract：BACKGROUND:Merkel cell carcinoma (MCC) is an aggressive neoplasm, which is often associated with Merkel cell polyomavirus (MCPyV). Programmed death-1 (PD-1) and its ligand PD-L1 are key players of the tumor microenvironment (TME). METHODS:Fourteen paraffin-embedded tissue samples of MCC were stratified by their MCPyV ...

journal_title：Journal of cutaneous pathology

authors： Mitteldorf C,Berisha A,Tronnier M,Pfaltz MC,Kempf W

更新日期：2017-09-01 00:00:00

abstract：:Multinucleate cell angiohistiocytoma (MCAH) is a rare cutaneous disease entity characterized by multiple red-to-brown or violaceous papules usually located on the acral regions, such as the face and the distal arms and legs. It affects elderly women more than men and rarely occurs at a young age. The exact pathogenic ...

journal_title：Journal of cutaneous pathology

authors： Suh JH,Lee SK,Kim HY,Kim MS,Lee UH

更新日期：2019-03-01 00:00:00

abstract：:Two patients with solitary lesions of pagetoid reticulosis are presented. A third case with disseminated lesions and similar microscopic detail is also reported. Lighg microscopic findings include an abnornal cell infiltrate confined to the epidermis and distributed diffusely in a pagetoid pattern. In ultrathin sectio...

journal_title：Journal of cutaneous pathology

authors： Wood WS,Killby VA,Stewart WD

更新日期：1979-04-01 00:00:00

abstract：BACKGROUND:Chronic urticaria is a condition with many inciting factors and often presents a therapeutic challenge to clinicians. In addition to a central role for mast cells, an immune dysregulated state related to cytokine/chemokine alterations is increasingly being recognized. METHODS:Biopsies of chronic urticaria (...

journal_title：Journal of cutaneous pathology

authors： Moy AP,Murali M,Nazarian RM

更新日期：2016-04-01 00:00:00

abstract：:An electron microscopic study was made of a patient with erythema elevatum diutinum, a rare variant of cutaneous leukocytoclastic vasculitis. Biopsies were obtained from early evolving and late fibroproliferative lesions. Early lesions showed vasculitis and a massive dermal infiltrate composed mainly of neutrophils, h...

journal_title：Journal of cutaneous pathology

authors： Lee AY,Nakagawa H,Nogita T,Ishibashi Y

更新日期：1989-08-01 00:00:00

abstract：:Two elderly patients with unusual hair-follicle tumors of the face are reported. The lesions showed some histologic resemblance to pilomatrixomas but differed by the presence at the advancing edge of cytologically-atypical cells without the usual shadow cell transformation and maturation of pilomatrixomas. The term ma...

journal_title：Journal of cutaneous pathology

authors： Weedon D,Bell J,Mayze J

更新日期：1980-02-01 00:00:00

abstract：AIM:In the absence of mites, the histologic diagnosis of human scabies can be difficult. Scabies can mimic a variety of inflammatory and lymphoproliferative disorders. It is under-recognized that scabies can also mimic Langerhans cell histiocytosis. METHODS:Sixteen examples of scabies were reviewed histologically and ...

journal_title：Journal of cutaneous pathology

authors： Bhattacharjee P,Glusac EJ

更新日期：2007-09-01 00:00:00

abstract：:Peristomal ulcer with cutaneous intestinal metaplasia, defined by scattered colonic crypts within variably intact epidermis, is an exceedingly rare pathologic diagnosis, which possesses the potential to progress to primary adenocarcinoma. Herein, we report the third case of cutaneous intestinal metaplasia in a peristo...

journal_title：Journal of cutaneous pathology

authors： Tinker DG,Roberts S,Hurley MY,Missall TA

更新日期：2020-05-01 00:00:00

abstract：BACKGROUND:BRAF, a serine/threonine kinase, is a component of the retrovirus-associated sequence (RAS)-RAF-extracellular-regulated protein kinase (ERK)-MAP kinase signal transduction pathway mediating signals from RAS to ERK. The T1796A single point mutation in exon 15 of the BRAF gene has recently been reported in a h...

journal_title：Journal of cutaneous pathology

authors： Palmedo G,Hantschke M,Rütten A,Mentzel T,Hügel H,Flaig MJ,Yazdi AS,Sander CA,Kutzner H

更新日期：2004-03-01 00:00:00

abstract：:Post-transplant lymphoproliferative disorder (PTLD) is a lymphoid proliferation that develops as a complication of solid organ or bone marrow transplants. PTLD limited to the skin is very rare. Plasmacytoma-like PTLD is an uncommon variant of monomorphic PTLD. Its presentation in the skin is extraordinary with very fe...

journal_title：Journal of cutaneous pathology

authors： Molina-Ruiz AM,Pulpillo A,Lasanta B,Zulueta T,Andrades R,Requena L

更新日期：2012-07-01 00:00:00

abstract：BACKGROUND:Among nonepithelial second neoplasms which are known to be induced by irradiation, rhabdomyosarcomas are extremely rare, and melanomas are infrequent. We report a high-grade sarcoma with rhabdomyoblastic differentiation, which appeared 30 years after megavoltage irradiation for an endometrial adenocarcinoma,...

journal_title：Journal of cutaneous pathology

authors： Miracco C,Materno M,De Santi MM,Pirtoli L,Ninfo V

更新日期：2000-09-01 00:00:00

abstract：:Polymorphous sweat gland carcinoma (PSGC) is a rare adnexal neoplasm with characteristic variegated histopathologic findings and low-grade clinical behavior. First described in 1994, only 11 cases have been reported in the literature. It is named for the multiplicity of architectural patterns that may be present: soli...

journal_title：Journal of cutaneous pathology

authors： Walker A,Mesinkovska NA,Emanuel PO,Vidimos A,Billings SD

更新日期：2016-07-01 00:00:00

abstract：AIMS:The differential diagnosis of acral keratoses is broad. Encompassing a variety of infectious, heritable and degenerative disorders, emphasis upon the clinical setting and histologic subtlety are often required to arrive at the correct diagnosis. Herein, we report on a series of adult patients who presented with ag...

journal_title：Journal of cutaneous pathology

authors： Saeed S,Sagatys E,Morgan MB

更新日期：2006-10-01 00:00:00

abstract：:The plasma membrane ultrastructure of the extramammary Paget cells was characterized by freeze-fracture electron microscopy, which was first employed for the study of Paget cells. The Paget cell plasma membrane revealed a flat fractured plane with much fewer and smaller desmosome-particle aggregations than those of th...

journal_title：Journal of cutaneous pathology

authors： Kitajima Y,Mori S

更新日期：1980-12-01 00:00:00

abstract：:Genital leiomyoma in men include those superficial leiomyomas arising in the scrotum and the areola. They are unusual neoplasms: few cases have been reported in the literature and they usually escape clinical diagnosis. Three cases of male genital leiomyomas are reported: two in the scrotum and one in the areola. They...

journal_title：Journal of cutaneous pathology

authors： Suárez-Peñaranda JM,Vieites B,Evgenyeva E,Vázquez-Veiga H,Forteza J

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND:p53 mutations are etiologically associated with the development of squamous cell carcinomas (SCCs) or with exposure to specific carcinogens. The study was conducted to examine the relationship of immunohistochemistry (IHC) scores between altered p53 protein expression in relation to patient's habits and hist...

journal_title：Journal of cutaneous pathology

authors： Bukhari MH,Niazi S,Chaudhry NA

更新日期：2009-03-01 00:00:00

abstract：:A 24-year-old black woman from Uganda was seen for treatment of multiple papules on her hands and feet. The lesions corresponded microscopically to foci of hyperkeratosis and acanthosis. Acid orcein stain revealed marked elastic fiber fragmentation. Acrokeratoelastoidosis of Costa (AKE) was diagnosed. The same damage ...

journal_title：Journal of cutaneous pathology

authors： Fiallo P,Pesce C,Brusasco A,Nunzi E

更新日期：1998-11-01 00:00:00

abstract：:Dermal non-neural granular cell tumor (NNGCT) was first described in 1991 as an S100-negative polypoid non-melanocytic tumor. Although originally introduced in the literature as a primary cutaneous tumor, it was later emphasized that such qualification could not be held until the line of differentiation was clarified....

journal_title：Journal of cutaneous pathology

authors： Fernandez-Flores A,Cassarino DS,Riveiro-Falkenbach E,Rodriguez-Peralto JL,Fernandez-Figueras MT,Monteagudo C

更新日期：2017-06-01 00:00:00

abstract：:Oral mucosal melanoma (OMM) is an extremely rare malignancy, accounting for < 0.5% of all melanomas and all oral malignancies. The rarity of OMM, the heterogeneity in clinical and histopathologic appearances, and the paucity of molecular and genetic studies to date have limited our knowledge of the etiopathogenesis of...

journal_title：Journal of cutaneous pathology

authors： Kumar SK,Shuler CF,Sedghizadeh PP,Kalmar JR

更新日期：2008-04-01 00:00:00

abstract：:Pigment-synthesizing melanoma (PSM) describes a morphologically and genetically diverse group of melanomas. In contrast, pigmented epithelioid melanocytoma (PEM) encompasses a spectrum of indolent tumors now classified as borderline/intermediate melanocytic tumors. Herein, we report a case of widely metastatic heavily...

journal_title：Journal of cutaneous pathology

authors： Motaparthi K,George EV,Guo R

更新日期：2019-08-01 00:00:00

abstract：:Apoptosis is a process found in many tissues by which devitalized cells are eliminated in an orderly manner. In skin, apoptosis occurs following sunburn, in Bowen's disease and in basal cell carcinoma. Scattered cells are observed in which the cytoplasm has become condensed and dyskeratotic. These dyskeratotic cells a...

journal_title：Journal of cutaneous pathology

authors： Olson RL,Everett MA

更新日期：1975-01-01 00:00:00

abstract：:Histologic, immunologic and electron microscopic studies were performed in a patient with transient acantholytic dermatosis which involved oral mucosa. Hitologic and electron microscopic findings were almost identical in both cutaneous and mucous membrane lesions, and these were similar to pemphigus vulgaris; suprabas...

journal_title：Journal of cutaneous pathology

authors： Kanzaki T,Hashimoto K

更新日期：1978-02-01 00:00:00

abstract：:Traditionally, the pigmented purpuric eruptions (PPE) have been subdivided into four histologic categories, based upon variations in histologic pattern and clinical morphologies. In recent years, it has become apparent that the lesions behave similarly, and this family of eruptions has become grouped under the term PP...

journal_title：Journal of cutaneous pathology

authors： Smoller BR,Kamel OW

更新日期：1991-12-01 00:00:00

abstract：:Post-vaccinial non-viral folliculitis has been recognized in the past decade as a new adverse cutaneous reaction to smallpox vaccination. Contrary to more serious smallpox vaccine reactions, post-vaccinial non-viral folliculitis has a benign course and resolves spontaneously within approximately 7 days. We describe ad...

journal_title：Journal of cutaneous pathology

authors： Bunick CG,Mariwalla K,Ibrahim O,Modi B,Imaeda S,McNiff JM

更新日期：2013-03-01 00:00:00

abstract：BACKGROUND:Chromoblastomycosis is a chronic, suppurative, granulomatous mycosis usually confined to skin and subcutaneous tissues. The host defense mechanisms in chromoblastomycosis have not been extensively investigated. The purpose of the present study was to determine the distribution and pathways of the fungal anti...

journal_title：Journal of cutaneous pathology

authors： Sotto MN,De Brito T,Silva AM,Vidal M,Castro LG

更新日期：2004-01-01 00:00:00