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uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,

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Page 1: uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,
Page 2: uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,
Page 3: uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,
Page 4: uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,
Page 5: uomustansiriyah.edu.iq02_23_42_AM.pdf · Congenital preauricular sinus. Acquired Pilonidal Sinus. Dermal sinus tracts are remnants of incomplete neural tube closure. Embryologically,
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