cochlear nerve (cn) aplasia refers to the absence of a visible cn on oblique sagittal magnetic resonance images of the lateral aspect of the inner auditory canal (iac). magnetic resonance (mr) is the preferred technique in patients with sensorineural hearing loss and/or vertigo; however, computed tomography (ct) is used to evaluate the iac or facial nerve canal. three types of aplasia or hypopl...

two siblings (a girl and a boy) with intrauterine growth retardation and earlyonset insulin dependent diabetes mellitus, who had a clinical syndrome consistent with' congenital pancreatic hypoplasia will be reported.

BACKGROUND The diagnostic criteria of Proteus syndrome include various lesions of localized overgrowth such as digital gigantism, hemihyperplasia with unilateral macrocephaly, epidermal nevus, and mesodermal hamartomas such as lipoma, lymphangioma, hemangioma, or fibroma. Hyperplasia of the plantar dermal tissue may result in a characteristic cerebriform appearance. However, hypoplastic lesions...

This study investigated possible prenatal and neonatal variables that may influence the prevalence of tooth enamel hypoplasia in preterm and low birth weight children (LBW) and a matched control group of term children with normal birth weight (NBW). The study sample consisted of 61 children born preterm and with LBW examined at 18-34 months of age. The control group was formed by 61 infants bor...

Posterior communicating artery (PCoA) hypoplasia is a fetal variant of the Circle of Willis. According to angiograms and autopsy reports, this congenital variation is found in 6-21% of the general population. PCoA hypoplasia only becomes a risk factor for ischemic stroke in the presence of ipsilateral internal carotid artery (ICA) occlusion. The aim of our study was to determine the role of PCo...

BACKGROUND AND PURPOSE The association between L5 hypoplasia and bilateral spondylolysis was described earlier on conventional radiographs of the lumbar spine. The purpose of this study was to describe the findings on MR imaging in patients with hypoplasia of L5 and to correlate these findings with the presence of bilateral spondylolysis of L5. MATERIAL AND METHODS We studied the MR images of...

Rapp-Hodgkin syndrome (RHS) is a rare form of ectodermal dysplasia with variable involvement of the hair, eyes, sweat glands, nails, and teeth. Oral findings may include hypodontia, hypoplastic enamel, cleft lip/palate, and a pronounced midfacial hypoplasia. The objective of this study was to determine if the pronounced midfacial hypoplasia is the result of a true tissue hypoplasia or displacem...

AIM The main purpose of this study was to assess the prevalence and distribution of decayed, missing, and filled teeth (DMFT) and enamel hypoplasia in 12-year old students in junior high school in Iran. MATERIALS AND METHODS This descriptive study was carried out in 2001 on 1,223 12-year old students, which were randomly selected in Yazd and Hadi-Shahr, Iran. A questionnaire was designed to r...

OBJECTIVE To investigate whether children with optic nerve hypoplasia and pituitary hormone insufficiencies have specific ocular fundus characteristics that may facilitate early diagnosis and treatment. DESIGN From May 15, 1995, through December 15, 1997, 17 children (8 girls and 9 boys, aged 0.3 to 13 years) with optic nerve hypoplasia were referred to the Department of Pediatric Ophthalmolo...

Congenital torticollis is most commonly caused by sternomastoid contracture. Aplasia of sternomastoid muscle causing congenital torticollis, though rare, has been reported. However the association of cerebellar hypoplasia with sternomastoid aplasia is extremely rare. The authors describe a case of congenital torticollis due to absence of the left sternomastoid with ipsilateral cerebellar hypopl...