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were of a rubbery consistency&#44; skin-colored&#44; with a smooth surface&#44; rounded&#44; and arrayed in a line &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; The patient presented joint deformities of the metacarpophalangeal joints with no signs of arthritis&#44; and no other skin lesions were observed&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Histopathology</span><p id="par0015" class="elsevierStylePara elsevierViewall">Involvement of the entire thickness of the dermis was observed&#44; with foci of partial collagen degeneration&#44; surrounded by a discrete lymphohistiocytic infiltrate &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Additional Tests</span><p id="par0020" class="elsevierStylePara elsevierViewall">Tests revealed elevated PCR &#40;30&#46;7<span class="elsevierStyleHsp" style=""></span>mg&#47;L&#41;&#59; ANA &#40;&#43;&#41; at a 1&#47;320 titer&#44; and anti-ENA &#40;&#43;&#41;&#59; SS-A&#44; 68<span class="elsevierStyleHsp" style=""></span>U&#47;mL&#46; Other parameters &#40;hemogram&#44; biochemistry&#44; erythrocyte sedimentation rate&#44; rheumatoid factor&#44; anti-CCP2&#44; urinary sediment&#44; proteinogram&#44; immunoglobulins&#44; C3&#44; C4&#44; anticardiolipin antibodies&#41; were normal or negative&#46; X-ray of the hands&#44; forearms&#44; and spine showed signs of degeneration and reduced bone density&#46;</p></span><span id="sec1025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect1025">What Is Your Diagnosis&#63;</span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Diagnosis</span><p id="par0025" class="elsevierStylePara elsevierViewall">Subcutaneous granuloma annulare&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Clinical Course and Treatment</span><p id="par0030" class="elsevierStylePara elsevierViewall">Because of the pain reported by the patient&#44; after a 1-year follow-up period&#44; treatment with 2 intralesional injections of triamcinolone in suspension at a concentration of 1&#58;2 was instated&#44; followed by oral vitamin E &#40;200<span class="elsevierStyleHsp" style=""></span>mg&#47;d&#41; for 6 months&#46; The condition resolved completely and no relapse was observed in the last 10 months of follow-up &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Comment</span><p id="par0035" class="elsevierStylePara elsevierViewall">Granuloma annulare &#40;GA&#41; is a benign form of dermatosis of uncertain origin and is generally self-limiting&#59; it may present different clinical forms&#44; the most common of which are localized&#44; generalized&#44; subcutaneous&#44; and perforating GA&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a> Several rare or atypical patterns of GA exist&#44; including follicular GA&#44; macular GA&#44; patch GA&#44; and linear GA&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">1&#44;2</span></a> Subcutaneous granuloma annulare &#40;SGA&#41; is a rare variant of GA and is more frequent in children&#46; It is characterized by the appearance of asymptomatic unadhered nodules of variable size and a firm elastic consistency&#44; with normal overlying skin&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> The most frequent locations are the head&#44; lower extremities&#44; forearms&#44; and backs of the hands and feet&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> Diagnosis is clinical and histologic&#44; and the disease presents a broad differential diagnosis that includes abscesses&#44; calcified hematomas&#44; soft-tissue tumors&#44; fat necrosis&#44; reaction to foreign bodies&#44; and interstitial granulomatous dermatitis&#46; 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we identified mucin deposits using colloidal iron and Alcian blue&#44; which together with negative results for RF and anti-CCP2 and the absence of clinical findings of rheumatologic disease&#44; aided us to perform the differential diagnosis between the 2 processes&#46; With respect to treatment&#44; many drugs have been proposed with variable results&#59; the most accepted approach is not to treat&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> In our case&#44; we decided to treat&#44; with an excellent response&#59; nevertheless&#44; the possibility that remission was spontaneous cannot be ruled out&#46; Few cases of SGA or linear GA have been reported and we have found no cases similar to ours&#46; We would like to highlight the exceptional nature of the clinical presentation&#44; in the form of linear beaded nodules&#44; which has not been described to date&#46; While this is an atypical presentation&#44; the potential diagnosis of SGA should be taken into account to avoid unnecessary treatment&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Conflicts of Interest</span><p id="par0040" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflicts of interest&#46;</p></span></span>"
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Case for Diagnosis
Beaded Nodules on the Forearms
Nódulos «arrosariados» en antebrazos
I. García Río
Corresponding author
Irene@aedv.es

Corresponding author.
, S. Heras Gonzalez, M.I. Martínez Gonzalez
Servicio de Dermatología, Hospital Universitario de Araba, Vitoria-Gasteiz, Álava, Spain
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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">An 83-year-old woman with a history of hypothyroidism and depression&#44; which was being treated&#44; was referred to our department by the rheumatology department&#44; where she was in follow-up for osteoporosis&#46; She reported the gradual appearance of asymptomatic nodules on the forearms&#59; the nodules had appeared a year earlier and were not associated with prior trauma or any other trigger&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Physical Examination</span><p id="par0010" class="elsevierStylePara elsevierViewall">The patient presented between 8 and 10 subcutaneous nodules in the cubital region of both forearms&#59; the nodules measured between 0&#46;5 and 1&#46;5<span class="elsevierStyleHsp" style=""></span>cm in diameter&#44; were of a rubbery consistency&#44; skin-colored&#44; with a smooth surface&#44; rounded&#44; and arrayed in a line &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46; The patient presented joint deformities of the metacarpophalangeal joints with no signs of arthritis&#44; and no other skin lesions were observed&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Histopathology</span><p id="par0015" class="elsevierStylePara elsevierViewall">Involvement of the entire thickness of the dermis was observed&#44; with foci of partial collagen degeneration&#44; surrounded by a discrete lymphohistiocytic infiltrate &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Additional Tests</span><p id="par0020" class="elsevierStylePara elsevierViewall">Tests revealed elevated PCR &#40;30&#46;7<span class="elsevierStyleHsp" style=""></span>mg&#47;L&#41;&#59; ANA &#40;&#43;&#41; at a 1&#47;320 titer&#44; and anti-ENA &#40;&#43;&#41;&#59; SS-A&#44; 68<span class="elsevierStyleHsp" style=""></span>U&#47;mL&#46; Other parameters &#40;hemogram&#44; biochemistry&#44; erythrocyte sedimentation rate&#44; rheumatoid factor&#44; anti-CCP2&#44; urinary sediment&#44; proteinogram&#44; immunoglobulins&#44; C3&#44; C4&#44; anticardiolipin antibodies&#41; were normal or negative&#46; X-ray of the hands&#44; forearms&#44; and spine showed signs of degeneration and reduced bone density&#46;</p></span><span id="sec1025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect1025">What Is Your Diagnosis&#63;</span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Diagnosis</span><p id="par0025" class="elsevierStylePara elsevierViewall">Subcutaneous granuloma annulare&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Clinical Course and Treatment</span><p id="par0030" class="elsevierStylePara elsevierViewall">Because of the pain reported by the patient&#44; after a 1-year follow-up period&#44; treatment with 2 intralesional injections of triamcinolone in suspension at a concentration of 1&#58;2 was instated&#44; followed by oral vitamin E &#40;200<span class="elsevierStyleHsp" style=""></span>mg&#47;d&#41; for 6 months&#46; The condition resolved completely and no relapse was observed in the last 10 months of follow-up &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46;</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Comment</span><p id="par0035" class="elsevierStylePara elsevierViewall">Granuloma annulare &#40;GA&#41; is a benign form of dermatosis of uncertain origin and is generally self-limiting&#59; it may present different clinical forms&#44; the most common of which are localized&#44; generalized&#44; subcutaneous&#44; and perforating GA&#46;<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">1</span></a> Several rare or atypical patterns of GA exist&#44; including follicular GA&#44; macular GA&#44; patch GA&#44; and linear GA&#46;<a class="elsevierStyleCrossRefs" href="#bib0030"><span class="elsevierStyleSup">1&#44;2</span></a> Subcutaneous granuloma annulare &#40;SGA&#41; is a rare variant of GA and is more frequent in children&#46; It is characterized by the appearance of asymptomatic unadhered nodules of variable size and a firm elastic consistency&#44; with normal overlying skin&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> The most frequent locations are the head&#44; lower extremities&#44; forearms&#44; and backs of the hands and feet&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> Diagnosis is clinical and histologic&#44; and the disease presents a broad differential diagnosis that includes abscesses&#44; calcified hematomas&#44; soft-tissue tumors&#44; fat necrosis&#44; reaction to foreign bodies&#44; and interstitial granulomatous dermatitis&#46; Histopathologic differentiation&#44; however&#44; should principally include rheumatoid nodules &#40;RN&#41;&#46;<a class="elsevierStyleCrossRefs" href="#bib0045"><span class="elsevierStyleSup">4&#44;5</span></a> Differentiation may be difficult&#44; as both diseases present a granulomatous dermal infiltrate consisting of an area of collagen necrobiosis surrounded by palisading histiocytes&#46;<a class="elsevierStyleCrossRefs" href="#bib0045"><span class="elsevierStyleSup">4&#44;5</span></a> RN present better circumscribed abnormal connective tissue located more deeply and fibrin deposition in the collagen is highly characteristic&#46;<a class="elsevierStyleCrossRefs" href="#bib0045"><span class="elsevierStyleSup">4&#44;5</span></a> RN tend to have giant cells in the palisade of histiocytes&#44; but the key histiologic finding for differentiating the diseases is the presence of mucin in the area of necrobiosis in SGA&#46;<a class="elsevierStyleCrossRefs" href="#bib0045"><span class="elsevierStyleSup">4&#44;5</span></a> In our patient&#44; we identified mucin deposits using colloidal iron and Alcian blue&#44; which together with negative results for RF and anti-CCP2 and the absence of clinical findings of rheumatologic disease&#44; aided us to perform the differential diagnosis between the 2 processes&#46; With respect to treatment&#44; many drugs have been proposed with variable results&#59; the most accepted approach is not to treat&#46;<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">3&#44;4</span></a> In our case&#44; we decided to treat&#44; with an excellent response&#59; nevertheless&#44; the possibility that remission was spontaneous cannot be ruled out&#46; Few cases of SGA or linear GA have been reported and we have found no cases similar to ours&#46; We would like to highlight the exceptional nature of the clinical presentation&#44; in the form of linear beaded nodules&#44; which has not been described to date&#46; While this is an atypical presentation&#44; the potential diagnosis of SGA should be taken into account to avoid unnecessary treatment&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Conflicts of Interest</span><p id="par0040" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflicts of interest&#46;</p></span></span>"
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ISSN: 15782190
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Idiomas
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