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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Medical History</span><p id="par0005" class="elsevierStylePara elsevierViewall">A 77-year-old man with a history of high blood pressure and ischemic heart disease was seen for a tumor located in the upper third of the back &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Physical Examination</span><p id="par0010" class="elsevierStylePara elsevierViewall">Physical examination revealed a tumor &#40;1&#46;2<span class="elsevierStyleHsp" style=""></span>cm in diameter&#41; consisting of 2 well-differentiated elements&#58; a tumor nodule with a pearly sheen and telangiectasias&#59; and a dark brown pigmented macule&#46; Dermoscopy showed arborescent telangiectasias&#44; gray-brown globules&#44; and crystalline structures in the nodule&#44; and an atypical reticular pattern with thick lines in the macule &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; The lesion was situated on intensely photodamaged skin&#44; on which solar lentigines&#44; actinic keratoses&#44; and solar elastosis were evident&#46; The clinical differential diagnosis included basal cell carcinoma &#40;BCC&#41; and melanoma&#46; The lesion was resected&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Histopathology</span><p id="par0015" class="elsevierStylePara elsevierViewall">Histopathology revealed 2 contiguous&#44; non-overlapping lesions &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>A&#41;&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">The first was a basophilic dermal tumor lesion continuous with the epithelium&#44; compromising the upper dermis&#44; consisting of nodular nests of cells with a high nucleus to cytoplasm ratio&#44; forming peripheral palisades and retraction clefts in the stroma &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>B&#41;&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">The second was an atypical&#44; intraepidermal&#44; irregular melanocytic lesion&#44; with melanocytes grouped into thecae of varying sizes&#46; Anisocytosis and anisokaryosis&#44; large hyperchromatic nuclei&#44; and irregularly distributed melanin pigment were also observed&#46; In addition&#44; isolated melanocytes had migrated into the upper layers of the epidermis&#46; Neither atypical mitoses nor skin invasion were observed &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>C&#41;&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">What is Your Diagnosis&#63;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Diagnosis</span><p id="par0035" class="elsevierStylePara elsevierViewall">Collision tumor consisting of a nodular BCC and a lentigo maligna &#40;LM&#41;&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Clinical Course and Treatment</span><p id="par0040" class="elsevierStylePara elsevierViewall">Resection margins were extended to 5<span class="elsevierStyleHsp" style=""></span>mm&#44; and no residual tumor was detected in the analyzed sample&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Comments</span><p id="par0045" class="elsevierStylePara elsevierViewall">BCC can coexist with other skin lesions&#44; but collision of BCC with melanoma is rare&#46; BCC most commonly co-occurs with benign melanocytic lesions&#44; seborrheic keratosis&#44; and neurofibroma&#44; and a few cases of BCC colliding with melanoma have been reported&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">LM melanoma and BCC are 2 distinct tumors that classically develop in the elderly and on sun-exposed skin&#46; Since the formation of both tumors is promoted by changes caused by sun damage&#44; their development in the same site&#44; although unusual&#44; can be easily explained&#46;<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">2</span></a></p><p id="par0055" class="elsevierStylePara elsevierViewall">Dermoscopic diagnosis of BCC is based on specific&#44; well-described criteria&#46; These include arborescent vessels&#44; superficial fine telangiectasias&#44; blue-gray nests&#44; blue-gray dots and globules&#44; focused dots&#44; maple leaf-like areas&#44; cart wheel structures&#44; concentric structures&#44; ulceration&#44; multiple small erosions&#44; bright red unstructured areas&#44; and whitish structures&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">3</span></a> In our patient we observed thick arborescent telangiectasias and gray-brown globules&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">LM manifests as a slow-growing pigmented macule in areas of chronic sun exposure&#44; as in the present case&#46; It is characterized by morphological asymmetry and pigmentation&#46; Dermoscopy of extrafacial LM reveals superficial spreading melanoma patterns&#44; including asymmetric structures&#44; dots&#47;globules&#44; and pseudopods&#44; combined with LM dermoscopic findings such as rhomboid structures and asymmetric perifollicular pigmentation&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">4</span></a></p><p id="par0065" class="elsevierStylePara elsevierViewall">Treatment of mixed tumors is carried out according to the guidelines recommended for individual tumors&#44; 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Cases for Diagnosis
Pigmented Vascular Tumoral Lesion on the Upper Back
Lesión tumoral pigmentada y vascular en dorso alto
R.D. Santa
Corresponding author
rodrigodellasanta@gmail.com

Corresponding author.
, J. Magliano
Unidad de cirugía dermatológica, Departamento de Dermatología Hospital de Clínicas “Dr. Manuel Quintela”, Universidad de la República, Montevideo, Uruguay
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Dermoscopy showed arborescent telangiectasias&#44; gray-brown globules&#44; and crystalline structures in the nodule&#44; and an atypical reticular pattern with thick lines in the macule &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46; The lesion was situated on intensely photodamaged skin&#44; on which solar lentigines&#44; actinic keratoses&#44; and solar elastosis were evident&#46; The clinical differential diagnosis included basal cell carcinoma &#40;BCC&#41; and melanoma&#46; The lesion was resected&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Histopathology</span><p id="par0015" class="elsevierStylePara elsevierViewall">Histopathology revealed 2 contiguous&#44; non-overlapping lesions &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>A&#41;&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">The first was a basophilic dermal tumor lesion continuous with the epithelium&#44; compromising the upper dermis&#44; consisting of nodular nests of cells with a high nucleus to cytoplasm ratio&#44; forming peripheral palisades and retraction clefts in the stroma &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>B&#41;&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">The second was an atypical&#44; intraepidermal&#44; irregular melanocytic lesion&#44; with melanocytes grouped into thecae of varying sizes&#46; Anisocytosis and anisokaryosis&#44; large hyperchromatic nuclei&#44; and irregularly distributed melanin pigment were also observed&#46; In addition&#44; isolated melanocytes had migrated into the upper layers of the epidermis&#46; Neither atypical mitoses nor skin invasion were observed &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>C&#41;&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">What is Your Diagnosis&#63;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Diagnosis</span><p id="par0035" class="elsevierStylePara elsevierViewall">Collision tumor consisting of a nodular BCC and a lentigo maligna &#40;LM&#41;&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Clinical Course and Treatment</span><p id="par0040" class="elsevierStylePara elsevierViewall">Resection margins were extended to 5<span class="elsevierStyleHsp" style=""></span>mm&#44; and no residual tumor was detected in the analyzed sample&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Comments</span><p id="par0045" class="elsevierStylePara elsevierViewall">BCC can coexist with other skin lesions&#44; but collision of BCC with melanoma is rare&#46; BCC most commonly co-occurs with benign melanocytic lesions&#44; seborrheic keratosis&#44; and neurofibroma&#44; and a few cases of BCC colliding with melanoma have been reported&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a></p><p id="par0050" class="elsevierStylePara elsevierViewall">LM melanoma and BCC are 2 distinct tumors that classically develop in the elderly and on sun-exposed skin&#46; Since the formation of both tumors is promoted by changes caused by sun damage&#44; their development in the same site&#44; although unusual&#44; can be easily explained&#46;<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">2</span></a></p><p id="par0055" class="elsevierStylePara elsevierViewall">Dermoscopic diagnosis of BCC is based on specific&#44; well-described criteria&#46; These include arborescent vessels&#44; superficial fine telangiectasias&#44; blue-gray nests&#44; blue-gray dots and globules&#44; focused dots&#44; maple leaf-like areas&#44; cart wheel structures&#44; concentric structures&#44; ulceration&#44; multiple small erosions&#44; bright red unstructured areas&#44; and whitish structures&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">3</span></a> In our patient we observed thick arborescent telangiectasias and gray-brown globules&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">LM manifests as a slow-growing pigmented macule in areas of chronic sun exposure&#44; as in the present case&#46; It is characterized by morphological asymmetry and pigmentation&#46; Dermoscopy of extrafacial LM reveals superficial spreading melanoma patterns&#44; including asymmetric structures&#44; dots&#47;globules&#44; and pseudopods&#44; combined with LM dermoscopic findings such as rhomboid structures and asymmetric perifollicular pigmentation&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">4</span></a></p><p id="par0065" class="elsevierStylePara elsevierViewall">Treatment of mixed tumors is carried out according to the guidelines recommended for individual tumors&#44; depending on which tumor has the worst prognosis&#46;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">5</span></a></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Conflicts of Interest</span><p id="par0070" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflicts of interest&#46;</p></span></span>"
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