They may cause distal collapse of the lung or partial obstruction with 'ball valve effect' that causes obstructive and dramatic over-inflation of the distal lung.
When detected over the carotid arteries, a bruit may indicate an increased risk of stroke; when produced by the abdomen, it may indicate partial obstruction of the aorta or other major arteries such as the renal, iliac, or femoral arteries.
On the other hand, a relatively small tumour in the lungs can produce partial obstruction of secondary airways and cause pneumonia, which can draw attention to the tumour at an early stage.
Either partial obstruction of these valves or leakage of blood through them because of imperfect closure results in turbulence in the blood current, causing audible, prolonged noises called murmurs.
This effect originates from a partial obstruction of the visibility of the solar disk.
Histological examination revealed partial obstruction of small arteries by the capsules, without causing any parenchymal damage.
But he cautions that the study may not translate fully to humans, because partial obstruction is just one of the causes of overactive bladder.
Short observation periods, fluoroscopic procedures, and cross-sectional imaging are used in treatment of partial obstruction by those who believe that observation is futile or dangerous.
However, the presence of a positive ureteral jet does not rule out the presence of ureteral stones [23] since ureteral stones quite often only cause partial obstruction.
Severe intestinal obstruction in patients with diverticulitis is rare; however, partial obstruction secondary to wall edema and peripheral inflammation or abscess formation may occur.
Hydrosalpinx forms in PFTC both due to the copious amounts of fluid produced by the tumour and to the partial obstruction of the tubes.
