infundibular stenosis

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in·fun·dib·u·lar ste·no·sis

narrowing of the outflow tract of the right ventricle below the pulmonic valve; may be due to a localized fibrous diaphragm just below the valve or, more commonly, to a long narrow fibromuscular channel.
Synonym(s): Dittrich stenosis


Franz, German pathologist, 1815-1859.
Dittrich plugs - minute, dirty-grayish, foul-smelling masses of bacteria and fatty acid crystals in the sputum in pulmonary gangrene and fetid bronchitis. Synonym(s): Traube plugs
Dittrich stenosis - narrowing of the outflow tract of the right ventricle below the pulmonic valve. Synonym(s): infundibular stenosis


pertaining to any of the body's infundibula. See also infundibulum.

infundibular cyst
see epidermal cyst.
infundibular necrosis
tooth necrosis, commencing in the tooth infundibulum, common in old horses.
infundibular process
the central part of the posterior pituitary gland; called also pars nervosa.
infundibular recess
the diverticulum off the third ventricle that occupies the infundibulum of the hypophysis.
infundibular stalk
the stalk of the hypophysis; with the pars tuberalis comprises the hypophyseal base.
infundibular stenosis
narrowing of the pulmonary artery just below the pulmonic valves; the stenosis is produced by a ring of connective tissue around the outflow tract of the right ventricle.
References in periodicals archive ?
In the case of infundibular stenosis, 2-dimensional imaging can reveal muscular hypertrophy proximal to the stenosis or systolic fluttering of the pulmonary valve.
Primary pulmonic infundibular stenosis in 12 cats: natural history and the effects of balloon valvuloplasty.
The prevailing notion at that time was that obstruction was caused by a subvalvular muscular ring, a muscular sphincter comparable to that found in infundibular stenosis of the right ventricle outflow tract.