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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- 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.
The Human Phenotype Ontology provides the following list of signs and symptoms for Poland syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms.
The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature.
The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined.
Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.