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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 52-year-old woman who had undergone a hysterectomy at the age of 35 due to uterine myomas&#44; presented with an extremely painful nodule on her right shoulder of 1 year duration&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Physical examination</span><p id="par0010" class="elsevierStylePara elsevierViewall">An erythematous and tender nodule of 20&#8239;mm on the right scapular region &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41; was observed&#46; Dermoscopy revealed a white central area with a peripheral crown of serpiginous vessels over a red-yellowish background&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Diagnostic tests</span><p id="par0015" class="elsevierStylePara elsevierViewall">A punch skin biopsy was performed and histologic study &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>A&#8211;B&#41; and immunohistochemistry &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>C&#46; Desmin&#59; 2D&#46; S100&#59; 2E&#46; Ki67&#41; was carried out&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia></span><p id="par1015" class="elsevierStylePara elsevierViewall">What is your diagnosis&#63;</p><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Diagnosis</span><p id="par0020" class="elsevierStylePara elsevierViewall">Pilar leiomyoma&#44; multiple cutaneous and uterine leiomyomatosis &#40;or Reed syndrome&#41;&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Evolution and treatment</span><p id="par0025" class="elsevierStylePara elsevierViewall">The lesion was excised&#46; Histopathological study showed an ill-defined proliferation of intermingled smooth muscle bands without atypia&#46; No mitotic activity or necrosis was observed in the dermis&#46; On immunohistochemistry&#44; the tumor was positive for desmin&#44; weakly positive for actin and Ki67&#44; and negative for CD34 and S-100 &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>A&#8211;E&#41;&#46; A diagnosis of pilar leiomyoma was made&#46; On further questioning&#44; the patient revealed a family history of multiple cutaneous leiomyomas &#40;mother&#44; brother and sister&#41; and uterine leiomyomatosis &#40;mother and sister&#41;&#46; The patient fulfilled the clinical diagnostic criteria for multiple cutaneous and uterine leiomyomatosis &#40;MCUL&#41; or Reed Syndrome<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a>&#46; A renovesical ultrasound was performed&#44; in order to rule out an associated renal neoplasm&#44; showing a radiologically benign lesion &#40;angiomyolipoma&#41;&#46; Ultrasonographic follow-up every 6 months was then indicated and the patient&#44; referred to the Urology and the Genetic department&#46; The patient was lost to follow-up&#46;</p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Discussion</span><p id="par0030" class="elsevierStylePara elsevierViewall">Pilar leiomyomas &#40;PL&#41; are infrequent benign smooth muscle tumors arising from the arrector pili muscle of hair follicles&#46; Within the group of cutaneous leiomyomas&#44; PL constitute the most common subtype&#46; PL usually present as painful erythematous-brownish papulonodules and can present as solitary or multiple lesions &#40;myomatosis cutis miliaris&#41;<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a>&#46; Almost 50&#37; of the PL cause a sharp or burning pain&#46; On dermoscopy&#44; PL can present with a delicate pink-brown pigmented network and irregular crypts with white cloud-like areas and peripheral branching vessels<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a>&#44; although unfocused arborizing telangiectasias have been described in more than 10&#37; of tumors<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a>&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">PL have been reported in association with multiple disorders such as esophageal leiomyomas&#44; chronic lymphocytic leukemia and HIV&#46; PL can also be secondary to an autosomal dominant inherited familial syndrome&#58; MCUL or Reed syndrome&#46; Main characteristics of MCUL are the presence of cutaneous leiomyomas &#40;mainly PL&#41;&#44; uterine leiomyomas in women &#40;73&#8211;100&#37;&#41; and renal cell carcinoma &#40;20&#8211;34&#37;&#41;&#46; Clinical diagnostic criteria include multiple cutaneous leiomyoma &#40;with histologic confirmation of one of the lesions&#41; or a biopsy-proven solitary cutaneous leiomyoma plus family history of Reed syndrome<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a>&#46; MCUL is caused by a heterozygous mutation &#40;1q42&#46;3-q43&#41; in the fumarate hydratase gene &#40;FH&#41;&#44; a Krebs cycle enzyme&#44; but may also act as a tumor suppressor<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a>&#46; PL present in patients with MCUL by the age of 40&#44; and generally constitute the first manifestation of the syndrome and their most sensitive and specific clinical marker<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a>&#46; Uterine leiomyomas are developed earlier than in healthy individuals&#44; usually requiring hysterectomy&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">The most worrying association of MCUL is with renal cell carcinoma &#40;RCC&#41;&#44; which occurs in up to 30&#37; of patients&#46; RCC in this context tend to be aggressive&#44; with early nodal dissemination and metastases&#46; Abdominal MRI is recommended every 6&#8211;12 months&#44; since small tumors could not be detected by ultrasound and can have a high dissemination potential<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a>&#46; Genetic testing should be offered&#44; if available&#44; in order to avoid unnecessary imaging in case of negative results&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">PL can be associated with MCUL and RCC&#46; Dermatologists should be aware of the potentially life-threatening consequences of a delayed diagnosis&#46;</p></span></span>"
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Vol. 113. Núm. 2.
Páginas 187-188 (febrero 2022)
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Vol. 113. Núm. 2.
Páginas 187-188 (febrero 2022)
Case for Diagnosis
Open Access
Solitary painful nodule on the scapular region
Nódulo doloroso solitario en la región escapular
Visitas
4027
F. Alamon-Reig, D. Morgado-Carrasco
Autor para correspondencia
morgadodaniel8@gmail.com

Corresponding author.
, P. Iranzo-Fernández
Departament de Dermatologia, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
Contenido relacionado
Actas Dermosifiliogr. 2022;113:T187-T18810.1016/j.ad.2020.06.007
F. Alamon-Reig, D. Morgado-Carrasco, P. Iranzo Fernández
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Medical history

A 52-year-old woman who had undergone a hysterectomy at the age of 35 due to uterine myomas, presented with an extremely painful nodule on her right shoulder of 1 year duration.

Physical examination

An erythematous and tender nodule of 20 mm on the right scapular region (Fig. 1) was observed. Dermoscopy revealed a white central area with a peripheral crown of serpiginous vessels over a red-yellowish background.

Figure 1
(0.11MB).
Diagnostic tests

A punch skin biopsy was performed and histologic study (Fig. 2A–B) and immunohistochemistry (Fig. 2C. Desmin; 2D. S100; 2E. Ki67) was carried out.

Figure 2
(0.29MB).

What is your diagnosis?

Diagnosis

Pilar leiomyoma, multiple cutaneous and uterine leiomyomatosis (or Reed syndrome).

Evolution and treatment

The lesion was excised. Histopathological study showed an ill-defined proliferation of intermingled smooth muscle bands without atypia. No mitotic activity or necrosis was observed in the dermis. On immunohistochemistry, the tumor was positive for desmin, weakly positive for actin and Ki67, and negative for CD34 and S-100 (Fig. 2A–E). A diagnosis of pilar leiomyoma was made. On further questioning, the patient revealed a family history of multiple cutaneous leiomyomas (mother, brother and sister) and uterine leiomyomatosis (mother and sister). The patient fulfilled the clinical diagnostic criteria for multiple cutaneous and uterine leiomyomatosis (MCUL) or Reed Syndrome1. A renovesical ultrasound was performed, in order to rule out an associated renal neoplasm, showing a radiologically benign lesion (angiomyolipoma). Ultrasonographic follow-up every 6 months was then indicated and the patient, referred to the Urology and the Genetic department. The patient was lost to follow-up.

Discussion

Pilar leiomyomas (PL) are infrequent benign smooth muscle tumors arising from the arrector pili muscle of hair follicles. Within the group of cutaneous leiomyomas, PL constitute the most common subtype. PL usually present as painful erythematous-brownish papulonodules and can present as solitary or multiple lesions (myomatosis cutis miliaris)2. Almost 50% of the PL cause a sharp or burning pain. On dermoscopy, PL can present with a delicate pink-brown pigmented network and irregular crypts with white cloud-like areas and peripheral branching vessels3, although unfocused arborizing telangiectasias have been described in more than 10% of tumors4.

PL have been reported in association with multiple disorders such as esophageal leiomyomas, chronic lymphocytic leukemia and HIV. PL can also be secondary to an autosomal dominant inherited familial syndrome: MCUL or Reed syndrome. Main characteristics of MCUL are the presence of cutaneous leiomyomas (mainly PL), uterine leiomyomas in women (73–100%) and renal cell carcinoma (20–34%). Clinical diagnostic criteria include multiple cutaneous leiomyoma (with histologic confirmation of one of the lesions) or a biopsy-proven solitary cutaneous leiomyoma plus family history of Reed syndrome1. MCUL is caused by a heterozygous mutation (1q42.3-q43) in the fumarate hydratase gene (FH), a Krebs cycle enzyme, but may also act as a tumor suppressor5. PL present in patients with MCUL by the age of 40, and generally constitute the first manifestation of the syndrome and their most sensitive and specific clinical marker6. Uterine leiomyomas are developed earlier than in healthy individuals, usually requiring hysterectomy.

The most worrying association of MCUL is with renal cell carcinoma (RCC), which occurs in up to 30% of patients. RCC in this context tend to be aggressive, with early nodal dissemination and metastases. Abdominal MRI is recommended every 6–12 months, since small tumors could not be detected by ultrasound and can have a high dissemination potential7. Genetic testing should be offered, if available, in order to avoid unnecessary imaging in case of negative results.

PL can be associated with MCUL and RCC. Dermatologists should be aware of the potentially life-threatening consequences of a delayed diagnosis.

References
[1]
M. Pithukpakorn, J.R. Toro.
Hereditary leiomyomatosis and renal cell cancer.
GeneReviews®,
[2]
M.E. Garman, M.A. Blumberg, R. Ernst, S.S. Raimer.
Familial leiomyomatosis: a review and discussion of pathogenesis.
Dermatology, 207 (2003), pp. 210-213
[3]
B. Behera, S. Vinupriya, R. Kumari, D.M. Thappa, D. Gochhait, B. Srinivas, et al.
Dermoscopic features of pilar leiomyomas.
Br J Dermatol, 179 (2018), pp. 202-204
[4]
P. Zaballos, L.J. Pozo del, G. Argenziano, C. Medina, F. Lacarrubba, B. Ferrer, et al.
Dermoscopy of cutaneous smooth muscle neoplasms: a morphological study of 136 cases.
J Eur Acad Dermatol Venereol, 33 (2019), pp. 693-699
[5]
V.M. Patel, M.Z. Handler, R.A. Schwartz, et al.
Hereditary leiomyomatosis and renal cell cancer syndrome: an update and review.
J Am Acad Dermatol, 77 (2017), pp. 149-158
[6]
H. Collgrosa, M. Iglesias-Sanchoa, M.J. Tribó-Boixareub, L. Creus-Vila, P. Umbert-Milleta, M. Salleras-Redonneta.
Leiomiomatosis cutánea y uterina múltiple o síndrome de Reed: estudio retrospectivo de 13 casos.
Actas Dermosifiliogr, 106 (2015), pp. 117-125
[7]
F.H. Menko, E.R. Maher, L.S. Schmidt, et al.
Hereditary leiomyomatosis and renal cell cancer (HLRCC): renal cancer risk, surveillance and treatment.
Fam Cancer, 13 (2014), pp. 637
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