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dc.creatorWhittle P,Carolina
dc.creatorMartínez M,Winston
dc.creatorBaldassare P,Gina
dc.creatorSmoje P,Gabriela
dc.creatorBolte M,Kristel
dc.creatorBusel M,David
dc.creatorGonzález,Sergio
dc.date2003-07-01
dc.date.accessioned2019-11-14T12:59:12Z
dc.date.available2019-11-14T12:59:12Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000700004
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/119343
dc.descriptionBackground: Pilomatrixoma is a benign tumor of the skin, preferentially found in children. The final diagnosis is made by biopsy. High resolution ultrasound (US) is a non invasive method for its diagnosis. Aim: To describe the US findings in children with pilomatrixoma. Material and methods: Fifty five patients with 62 clinically suspected pilomatrixomas were studied by US. All examinations were done with an ATL HDI 5000, linear 5-12 MHz transducer. Pathological study confirmed the diagnosis pilomatrixoma in 52 cases. Results: Fifty of 52 pilomatrixomas were diagnosed by US, with a sensitivity of 96%. The mean age of patients was 7.5 years. Forty seven lesions (90%) were located in the head, neck or upper extremities and their mean size was 8.5 mm. Thirty two lesions were hypodermal, 14 were dermohypodermal and 6 were dermal. In 44 lesions the contour was regular and non delineated, 44 lesions were oval, 41 lesions had an acoustic shadow, 36 were echogenic or hyperechogenic, 31 had a peripheral halo (60%), 55 had calcifications (98%), nine had perilesional vessels, 2 had intratumoral vessels and 7 had inflammatory changes. US excluded the diagnosis of pilomatrixoma in 10 lesions formulating a correct differential diagnosis in eight, with a specificity of 80%. Conclusions: Pilomatrixomas had two US types of presentation. The first is a well defined nodule with peripheral halo partially calcified or with microcalcifications. The second is a completely calcified nodule without peripheral halo and with a strong acoustic shadow. US is a useful, sensitive and specific diagnostic method for pilomatrixoma (Rev Méd Chile 2003; 131: 735-40)
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dc.languagees
dc.publisherSociedad Médica de Santiago
dc.relation10.4067/S0034-98872003000700004
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceRevista médica de Chile v.131 n.7 2003
dc.subjectPilomatrixoma
dc.subjectUltrasonography
dc.subjectDoppler, color
dc.titlePilomatrixoma: Diagnóstico ecotomográfico


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