en Pediatric Hematology & Oncology Pediatric Hematology & Oncology گزارش مورد Case report <p style="text-align: justify;"><span style="line-height:2;"><span style="font-family:Arial;"><span style="font-size:14px;">Mesenchymal hamartoma of the chest wall is a rare benign tumor found in infants and young children. We present a male neonate with bilateral multifocal mesenchymal hamartoma of the chest wall since birth causing deformity of the chest wall and respiratory symptoms. Mesenchymal hamartoma is often unilateral and solitary, but multifocality could be expected in the absence of the malignancy. Mesenchymal hamartoma of the chest wall in infants should always be considered as the differential diagnosis of the chest wall masses in young children.</span></span></span></p> Hamartoma, Mesenchymal, Bilateral, Chest wall, Benign, Neonate 26 28 http://ijbc.ir/browse.php?a_code=A-10-636-1&slc_lang=en&sid=1 Mitra Khalili m.khalili76@yahoo.com 10031947532846009167 10031947532846009167 No Department of Radiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran Mehrdad Izadi Mehr_8@yahoo.com 10031947532846009168 10031947532846009168 No Pediatric Surgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran Khashayar Atqiaee Khashayaratqiaee@gmail.com 10031947532846009169 10031947532846009169 No Department of Pediatric Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran Mehdi Gholamzadeh Baeis dr.m.gholamzadeh@gmail.com 10031947532846009170 10031947532846009170 No Department of Radiology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Saran lotfollahzadeh S.lotfollahzadeh@gmail.com 10031947532846009171 10031947532846009171 No Pediatric Surgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran Maryam Panahi maryam.neda.panahi@gmail.com 10031947532846009172 10031947532846009172 Yes Pediatric Surgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran