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Genetic and Rare Diseases Information Center (GARD)

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Poland syndrome

Other Names for this Disease
  • Poland anomaly
  • Poland sequence
  • Poland syndactyly
  • Poland's syndrome
  • Unilateral defect of pectoralis muscle and syndactyly of the hand
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What are the signs and symptoms of Poland syndrome?

Signs and symptoms of Poland syndrome may be slight to severe. Some people with Poland syndrome have only absence of breast tissue, while others may be missing all or part of the chest muscle and underlying ribs.[1] Symptoms tend to occur on one side of the body. Below we have listed symptoms that can be found in this condition:[2]

  • Absence of some of the chest muscles.
  • The end of the main chest muscle, where it attaches to the breastbone, is usually missing.
  • The nipple, including the darkened area around it (areola) is underdeveloped or missing; in females, this may extend to the breast and underlying tissues.
  • Abnormally short and slightly webbed fingers.
  • Often, the armpit (axillary) hair is missing.
  • The skin in the area is underdeveloped (hypoplastic) with a thinned subcutaneous fat layer.
  • The upper rib cage can be underdeveloped or missing. Sometimes the shoulder blade or bones of the arm are also involved.
  • Rarely, spine or kidney problems are present.
Last updated: 6/25/2011

  1. Breast Problems. The American Pediatric Surgical Association. Accessed 9/30/2010.
  2. Learning About Poland Anomaly. National Human Genome Research Institute. June 28, 2010; Accessed 9/30/2010.