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Eponyms - N

Author: Andrew J. Yee, M.D., Posted on Tuesday, July 13 @ 00:00:00 IST by RxPG  

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Eponyms

NΔGELE'S RULE
means of estimating date of delivery by counting back 3 months from the first day of the last menstrual period and adding seven days; full term 38 weeks after fertilization, 40 weeks after LNMP

NARDI TEST
narcotic-induced stimulation or spasm reproducing the abdominal pain and amylase elevation of relapsing pancreatitis (for inferring sphincteric disease in any pancreatic or biliary ductal system without a gallbladder), presumably accurate in the diagnosis of perisphincteric disease

NAXOS DISEASE
initially described on Greek island of Naxos, synrome of arrhythmogenic right ventricular cardiomyopathy, non-epidermolytic palmoplantar keratoderma, and woolly hair, due to deletion in plakoglobin, a constituent protein in adherens and desmosomal junctions

NEGRI BODIES
in rabies virus-infected brain neurons, eosinophlic cytoplasmic inclusions


NELSON'S SYNDROME
enlargement of a pituitary adenoma in a patient with Cushing's disease whose adrenals have been removed from loss of feedback inhibition of cortisol

NERVE ENDINGS
free includes Merkel cell associated: found in the epidermis as small aggregates called tactile corpuscles (Merkel cell has neural crest and squamous properties); encapsulated includes Meissner's: asymmetrical, lamellated; Pacinian: symmetrical, lamellated; Ruffini: no lamellation

NIEMANN-PICK DISEASE
sphingolipidosis (sulfatidose), lysosomal accumulation of sphingomyelin and cholesterol, type A&B (deficiency of sphingomyelin-cleaving enzyme sphingomyelinase) and type C&D (enzyme normal or nearly normal, defect in esterification and transport); type A, 75-80% of all cases, extensive neurologic involvement, marked visceral accumulations of sphingomyelin, and progressive wasting and early death within the first 3 years of life); half have cherry red spot in macula as in Tay-Sachs

NIKOLSKY'S SIGN
in pemphigus vulgaris; the apparently normal epidermis may be separated at the basal layer and rubbed off when pressed with a sliding motion

NISSL BODIES
in neurons, rough endoplasmic reticulum

NISSL STAIN
stains cell bodies dye binds to acid groups, in particular the RNAs of the ribosomes located within the cell body; Franz Nissl, German medical student at time

NOONAN'S SYNDROME
Turner's phenotypic characteristics without any sex chromosome abnormalities, males or females with congenital heart defect (usually pulmonic stenosis), pectus carinatum, short stature, mild mental retardation, hypertelorism, and webbed neck

NORWALK VIRUS
outbreak in a school in Norwalk, Ohio in 1969

NORWEGIAN SCABIES
crusted scabies, highly contagious, psoriaform dermatosis of the hands and feet with dystrophy of the nails and an erythematous scaling eruption that may be generalized; itching minimal; seen in institutionalized patients, mentally retarded, and in patients with HIV, HTLV-1, or adult T cell leukemia,

NOTHNAGEL'S SYNDROME
injury to superior cerebellar peduncle causing ipsilateral oculomotor palsy and contralateral cerebellar ataxia


Note: Eponyms Database Author: Andrew J. Yee, M.D. (website: eponyms.net)

You can also revise eponyms using eponyms revision tool available at Eponyms Crammer



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