نتایج جستجو برای: hypothalamic hamartomas
تعداد نتایج: 32452 فیلتر نتایج به سال:
Duplication of the pituitary gland is a rare malformation. The authors describe a patient with features of the median cleft face syndrome (hypertelorism, V-shaped hairline, and developmental delay) who exhibited duplication of the pituitary gland and diffuse thickening of the hypothalamus (hypothalamic hamartoma) as shown by MR. The embryology of the developing pituitary gland and pathogenesis ...
OBJECTIVE Human hypothalamic hamartomas (HH) are intrinsically epileptogenic and are associated with treatment-resistant gelastic seizures. The basic cellular mechanisms responsible for seizure onset within HH are unknown. We used intra-operative microwire recordings of single neuron activity to measure the spontaneous firing rate of neurons and the degree of functional connection between neuro...
A variety of surgical treatments for intractable epilepsy with hypothalamic hamartoma (HH) are described, although most are derived from limited patient experience gathered from several centres. We describe the results of transcallosal resection of HH in 29 consecutive patients undergoing surgery at one centre. Twenty-nine patients aged 4-23 years (mean 10 years) underwent HH surgery with a min...
Hamartoma of the tuber cinereum is a well-recognized cause of central precocious puberty. We report three patients with an isodense, nonenhancing mass within the interpeduncular cistern identified by CT. In a fourth patient, the CT scan was normal. MR imaging was obtained in all cases and demonstrated a sessile or pedunculated mass of the posterior hypothalamus arising from the region of the tu...
Background/Aims: Hypothalamic hamartomas are the most common identifiable cause of central precocious puberty (CPP). Hamartoma characteristics proposed to be associated with CPP include specific anatomic features and expression of molecules such as gonadotropin-releasing hormone (GnRH), transforming growth factor (TGF ), and GRM1A , which encodes the type 1 metabotropic glutamate receptor isofo...
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