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Normally diagnosed between 9 and 16 weeks' gestation.
If by vector you mean the organism which causes it, there is none. Cystic fibrosis is a genetic condition.
it causes unusually thick mucus in the pancreas
Cystic Fibrosis
A medical physician can run a test known as the chloride sweat test that can be used to help diagnose cystic fibrosis. Cystic Fibrosis is a systemic disease that primarily affects the lungs and causes thick mucous secretions to build up in the airway and therefore causes breathing problems.
DefinitionA cystic hygroma is a mass that commonly occurs in the head and neck area. It is a birth defect.Alternative NamesLymphangiomaCauses, incidence, and risk factorsA cystic hygroma occurs as the baby grows in the womb. It forms from pieces of material that carry fluid and white blood cells. Such material is called embryonic lymphatic tissue. After birth, a cystic hygroma usually looks like a soft bulge under the skin. The cyst may not be recognized at birth. It typically grows as the child does, and sometimes is not noticed until the child is older.Sometimes, a cystic hygroma is seen when the baby is still in the womb using a pregnancy ultrasound. This can mean that the baby has a chromosomal problem or other birth defects.SymptomsA common symptom is a neck mass found at birth, or discovered later in an infant after an upper respiratory tract infection.Signs and testsThe following tests may be done:Chest x-rayUltrasoundCT scanIf the cystic hygroma is detected during a pregnancy ultrasound, other ultrasound tests or amniocentesis may be recommended.TreatmentTreatment involves complete removal of the abnormal tissue whenever possible. However, cystic hygromas can often invade other neck structures, making this impossible.Other treatments have been attempted with only limited success. These include:Chemotherapy medicationsInjection of sclerosing medicationsRadiation therapySteroidsExpectations (prognosis)The outlook is good if surgery can totally remove the abnormal tissue. In cases where complete removal is not possible, the cystic hygroma commonly returns.The outcome may also depend on what other chromosomal abnormalities or birth defects, if any, are present.ComplicationsComplications may include:BleedingDamage to structures in the neck caused by surgeryInfectionReturn of the cystic hygromaCalling your health care providerIf you notice a lump in your neck or your child's neck, call your doctor.ReferencesCamitta BM. Abnormalities of lymphatic vessels. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 489.Richards DS. Ultrasound for pregnancy dating, growth, and the diagnosis of fetal malformations. In: Gabbe SG, Niebyl JR, Simpson JL, eds. Obstetrics: Normal and Problem Pregnancies. 5th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2007:chap 9.
Cystic fibrosis is not an infectious disease but a genetic disease, provoked by mutations fo the CFTR gene, mainly inherited.
Cystic fibrosis
most common is Cystic Fibrosis? Sorry, not a very clearly worded question.
fold improperly
The genotype of a person with CF is cc. The genotype of a carrier of a CF mutation is Cc.