Polad syndrome, also known as pectoralis major muscle deficiency and short finger syndrome, is caused by impaired development or differentiation of the upper extremity germ in the third week of embryo. Polad’s syndrome is mostly located on the right side, accounting for about 75% of the lesions, but there are also bilateral cases. The thoracic manifestations include: absence of the pectoralis major and minor muscles; malformation of the cartilage and anterior ribs of the 2-4 ribs; and varying degrees of dysplasia of the latissimus dorsi, deltoid, supraspinatus and infraspinatus muscles. Females also have hypoplastic or undeveloped breasts. Hypoplasia of the subcutaneous adipose tissue is also seen in males. The common upper teratogenic features include syndactyly and short fingers. Most children have limb hypoplasia, but the degree varies from hypoplasia of one finger to lack of fingers on the whole hand or even the entire upper limb. The combined malformations include scoliosis, high scapula, right-sided heart, funnel chest, renal hypoplasia, foot hypoplasia, hereditary spherocytosis, leukemia, neuroblastoma, and nephroblastoma.