PATHOLOGY & ONCOLOGY RESEARCHVol. 13 No. 4, 2007

 Report

Rhabdomyomatous Mesenchymal Hamartoma Presenting as a Skin Tag in the Sternoclavicular Area

Araceli SOLIS-CORIA1, Roberto VARGAS-GONZÁLEZ2, Cirilo SOTELO-AVILA3

1Clínica de Dermatología y Cirugía Estética de Puebla, Puebla, México
2Laboratorio de Inmunopatología de Puebla and Department of Pathology, Hospital Para el Niño Poblano, Atlixco, Puebla, México
3Department of Pathology, Cardinal Glennon Children’s Medical Center, St. Louis, USA

 

Rhabdomyomatous mesenchymal hamartoma (RMH) is a rare congenital lesion of the dermis and subdermis. It has been described predominantly in newborns, with 30 cases reported in the English literature. Typically, it appears as a skin tag, papule, nodule or a mass involving the face or sternal notch. A 28-day-old girl presented with a 1.4 x 0.8 cm soft skin tag in the right sternoclavicular area. Physical examination revealed no congenital anomalies. A shaved biopsy showed that the core of the lesion contained striated muscle fibers mixed with hair follicles and sebaceous and eccrine glands. Thin epidermis lined the outside of the tag. We report a patient with a RMH in a site not previously reported and discuss the differential diagnosis. Pathology & Oncology Research, Vol 13, Nr 4, 375-378, 2007

Key words: rhabdomyomatous mesenchymal hamartoma; striated muscle hamartoma


Received: Dec 18, 2006; accepted: Nov 10, 2007
Correspondence: Roberto VARGAS-GONZÁLEZ, Laboratorio de Inmunopatología de Puebla and Department of Pathology, Hospital Para el Niño Poblano, Km 1.5 Carretera Federal Puebla Atlixco, Puebla 72190, México; Tel: (52)-222-4049004, Fax: (52)-222-4032105; E-mail: soncoy@msn.com

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