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Lymphoepithelioma-Like Carcinoma of the Skin: a Case (--THIS SECTION DOES NOT PRINT--)

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Lymphoepithelioma-Like Carcinoma of the Skin: a Case (--THIS SECTION DOES NOT PRINT--) QUICK DESIGN GUIDE QUICK TIPS (--THIS SECTION DOES NOT PRINT--) Lymphoepithelioma-like Carcinoma of the Skin: A Case (--THIS SECTION DOES NOT PRINT--) This PowerPoint 2007 template produces a 36”x48” professional poster. Of One Individual Presenting with Two Primary Cutaneous Neoplasms This PowerPoint template requires basic PowerPoint It will save you valuable time placing titles, subtitles, text, and (version 2007 or newer) skills. Below is a list of graphics. commonly asked questions specific to this template. Jacqueline C. Fisher, DO, Rachel M. White, BA, and Daniel S. Hurd, DO, FAOCD If you are using an older version of PowerPoint some Use it to create your presentation. Then send it to LewisGale Hospital Montgomery / Edward Via College of Osteopathic Medicine template features may not work properly. PosterPresentations.com for premium quality, same day affordable printing. Using the template Case Report Merkel cell carcinoma (MCC) can present clinically similar to LELCS but will stain positive for We provide a series of online tutorials that will guide you through the Figures 1 neuroendocrine markers such as synaptophysin, neuron-specific enolase, and CK20. In Verifying the quality of your graphics poster design process and answer your poster production questions. An 83-year-old Caucasian female was referred to our dermatology clinic for surgical excision of a addition, peripheral lymphocytic infiltrate is usually absent in MCC.2,14Clarke and Ioffreda previously biopsied lesion on her left neck reported initially as a nodular basal cell carcinoma with Go to the VIEW menu and click on ZOOM to set your report a case in which LELCS demonstrates spindle shaped cells that resemble the spindle cell focal morpheaform features. The patient also complained of an asymptomatic, slowly-enlarging variant of melanoma.23 However, unlike LELCS, melanoma is positive for S100 and other preferred magnification. This template is at 100% View our online tutorials at: lesion to her left parietal scalp believed to be present for at least three months. Clinical examination neuroectodermal markers such as HMB-45 and Melan-A. LELCS should be distinguished from the size of the final poster. All text and graphics will http://bit.ly/Poster_creation_help revealed a solitary 2.0 x 2.2cm tan to pink indurated ulcerative plaque (Figure 1). There were no malignant lymphoma by the absence of atypical lymphocytes in LELCS.1 Epithelial markers naso-oropharyngeal abnormalities or regional lymphadenopathy. A shave biopsy was performed to be printed at 100% their size. To see what your (copy and paste the link into your web browser). such as epithelial membrane antigen and cytokeratins will react positive in LELCS and negative the left parietal scalp to exclude both basal cell carcinoma and squamous cell carcinoma. The in malignant lymphoma. LELCS has shown the presence of occasional binucleated cells poster will look like when printed, set the zoom to patient’s past medical history was non-contributory and she denied any constitutional symptoms at resembling Reed-Sternberg cells, however Hodgkin lymphoma is negative for cytokeratins and 100% and evaluate the quality of all your graphics For assistance and to order your printed poster call the time of clinical presentation. is positive for CD30 and CD15.1,2,21,23 Basal cell carcinoma will demonstrate neoplastic basophilic cells extending downward from the epidermis whereas LELCS does not typically before you submit your poster for printing. PosterPresentations.com at 1.866.649.3004 The histopathological findings for both the left neck and left parietal scalp neoplasms showed a have an epidermal connection and lacks peripheral palisading. Inflamed poorly differentiated dermal proliferation of atypical epithelioid cells forming well-defined nests invested by a dense squamous cell carcinoma (SCC) strongly resembles LELCS.1,19 However, LELCS typically Using the placeholders lymphocytic infiltrate (Figure 2). The atypical epithelioid cells were basophilic and featured does not involve overlying epidermis and poorly differentiated SCC usually has an area of well- enlarged nuclei with prominent nucleoli. A central ulceration was present under microscopic differentiated carcinoma or overlying SCC in situ.1,3,5Cutaneous lymphadenoma demonstrates a To add text to this template click inside a examination of the cutaneous biopsy on the patient’s left parietal scalp. The overlying epidermis similar dense lymphocytic infiltrate as LELCS although these lymphocytes appear benign and placeholder and type in or paste your text. To move Object Placeholders appeared uninvolved in both samples. Each specimen stained positive for cytokeratin (CK) 5/6 and monomorphic.1,2Follicular dendritic cell tumor (FDCT) is similar to LELCS by way of a placeholder, click on it once (to select it), place epithelial membrane antigen (EMA) suggesting tumors of epithelial origin. Staining for CK7 and syncytial-appearing plump cells surrounded by reactive lymphoid cells but FDCT stains CK20 yielded negative results excluding Paget’s disease and Merkel cell carcinoma (MCC), negative for cytokeratin markers.2 FDCT will demonstrate positive reactivity to Ki-M4, CD21, your cursor on its frame and your cursor will change Use the placeholders provided below to add new elements to your respectively, from the differential diagnosis. Due to the concern for an underlying metastatic and CD35.2 to this symbol: Then, click once and drag it to poster: Drag a placeholder onto the poster area, size it, and click it to undifferentiated nasopharyngeal carcinoma or lymphoepithelioma-like carcinoma (LELC) of another its new location where you can resize it as needed. edit. internal organ, an in situ hybridization for Ebstein-Barr virus-encoded RNA (ISH/EBER) was Histologically, LELCS is remarkably similar to metastatic lymphoepithelioma of the Additional placeholders can be found on the left performed for detection of an active or latent EBV infection (Figure 3). The patient’s histologic nasopharynx also known as undifferentiated nasopharyngeal carcinoma.1,3,22 Epstein-Barr virus slides were compared to a control ISH/EBER immunohistochemical stain (Figure 4). The negative Figure 1 (EBV) reactivity is the main distinguishing factor between LELCS and undifferentiated side of this template. Section Header placeholder ISH/EBER stain for both lesions strongly favors two primary LELSC in our patient and does not nasopharyngeal carcinoma.1,2,4,24In general, LELCS is negative for EBV reactivity whereas Move this preformatted section header placeholder to the poster area favor a metastatic disease related to an EBV-driven undifferentiated nasopharyngeal carcinoma or undifferentiated nasopharyngeal carcinoma will test positive for EBV.1,2,4,24 There has only been Modifying the layout internal LELC. Our patient was referred to an oncologist for medical evaluation to exclude one reported case of LELCS in a Japanese woman which tested EBV positive yet no related to add another section header. Use section headers to separate topics cutaneous metastasis of an undifferentiated nasopharyngeal carcinoma or lymphoepithelioma-like neoplasms were found elsewhere in her body.22 In situ hybridization for EBER, the most This template has four or concepts within your presentation. carcinoma of other internal organs. Given the patient’s advanced age and frail status, the patient reliable, specific, and highly sensitive method for detecting latent EBV, was used in this case different column layouts. refused oncologic examination as she planned to decline systemic treatment if an underlying internal report and yielded a negative result for EBV in our patient.22,25 Metastatic lymphoepithelioma Right-click your mouse malignancy was discovered. She plans to undergo surgical excision of both cutaneous neoplasms of the nasopharynx is rare, but aggressive when it does occur.2,4,6 LELCS secondary to and remains free from systemic symptoms which supports the diagnosis of two primary metastasis of undifferentiated nasopharyngeal carcinoma appears to be very rare as there are less on the background and lymphoepithelioma-like carcinomas of the skin. than twenty cases currently reported in the literature.2,6,11 Nonetheless, it is highly click on “Layout” to see Text placeholder recommended to evaluate the patient for possible undifferentiated nasopharyngeal carcinoma by the layout options. a complete otolaryngologic exam including indirect laryngoscopy of the nasopharynx.4,26A Move this preformatted text placeholder to the poster to add a new Discussion review of symptoms is recommended when LELCS is confirmed to exclude metastasis from a The columns in the provided layouts are fixed and body of text. variety of internal organ systems.2,4,5,22 Lymphoepithelioma-like carcinoma can be found in cannot be moved but advanced users can modify any Lymphoepithelioma-like carcinoma of the skin (LELCS) is a rare primary cutaneous neoplasm many organs besides the skin including salivary glands, thyroid, thymus, lungs, stomach, kidney, layout by going to VIEW and then SLIDE MASTER. initially described in 1988 by Swanson et al.6 Since this first report, close to eighty cases have been breasts, uterine cervix, prostate, vagina, and urinary bladder..6,7,16,17,23,27 Histologically, EBV described in the English literature. LELCS occurs most often in elderly individuals on sun-exposed reactivity has been associated only with lymphoepithelioma-like carcinoma of the stomach, areas, primarily the head and neck.2. However,
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