Table of Contents
Who discovered Duane syndrome?
The syndrome was first described by ophthalmologists Jakob Stilling (1887) and Siegmund Türk (1896), and subsequently named after Alexander Duane, who discussed the disorder in more detail in 1905.
What is Duane syndrome?
Duane syndrome (DS) is an eye movement disorder present at birth (congenital) characterized by horizontal eye movement limitation: a limited ability to move the eye inward toward the nose (adduction), outward toward the ear (abduction), or in both directions.
What is the cause of Koro syndrome?
Causes. Koro has been described as a panic disorder that centers around the genitals. It appears to be heavily influenced by cultural beliefs, which might explain why epidemics are common.
What gene causes Duane syndrome?
The diagnosis of Duane syndrome is based on clinical findings. Mutations in the CHN1 gene are associated with familial isolated Duane syndrome. Direct sequencing of the CHN1 gene is available as a clinical test, and has to date detected missense mutations in seven patients and affected family members.
What is adduction syndrome?
Three cases of depression in adduction syndrome are described. All occurred unilaterally, in the left eye, in boys and were characterized by depression and retraction of the involved eye with attempted adduction. This was accompanied by an inability to elevate the eye in adduction and a markedly abnormal head posture.
Where is koro found?
Primarily found in Southeast Asia (e.g., China, India, and Thailand), Koro has also been reported in Africa, Britain, and America (Kumar et al., 2014). In China, Koro is called “Suoyang” (Suo = shrinking, Yang = penis), and “Jhinjhinia Bemar” in India (Kumar et al., 2014).
What is koro culture-bound syndrome?
Koro is a culture bound delusional disorder in which individuals have an overpowering belief that their sex organs are retracting and will disappear, despite the lack of any true longstanding changes to the genitals.
What is the treatment for Duane syndrome?
There’s no cure for Duane syndrome, but surgery can be used to try to improve or eliminate issues with head turns, reduce or completely remove considerable misalignment of the eyes, reduce severe retraction of the eyeball, and improve the tendency of the eye to deviate upward or downward with particular eye movements.
How is Duane syndrome diagnosed?
What is Conradi syndrome?
Infants with Conradi-Hünermann syndrome have small, hardened spots of calcium on the “growing portion” or heads of the long bones (stippled epiphyses) as well as other areas of the cartilaginous skeleton.
What does charge Syndrome stand for?
CHARGE syndrome is a disorder that affects many areas of the body. CHARGE is an abbreviation for several of the features common in the disorder: coloboma, heart defects, atresia choanae (also known as choanal atresia), growth retardation, genital abnormalities, and ear abnormalities.
What is Upshoot and Downshoot?
Abstract. The upshoot and downshoot that occurs when the eye is rotated into the adducted position in Duanes’ retraction syndrome is believed to be related to a taut or leash effect from the lateral rectus muscle.
What is the phobia of penises called?
A person with Ithyphallophobia is afraid of seeing an erect penis, either through clothing or without it. Some are also afraid of touching an erect penis. Other names for Ithyphallophobia are Medorthophobia and Phallophobia. Phallophobia consists of a combination of Greek words phallo (penis) and phobos (fear).
Where is Koro syndrome from?
Initially the syndrome was described as a culture specific disorder in Southeast Asia and China. Sporadic cases referred to as the koro-like syndrome (in which the urogenital symptoms are not associated with fears of death) have been observed in western countries.
Is Duane syndrome curable?
What causes Duane?
Duane syndrome occurs when the sixth cranial nerve—the nerve originating in the brainstem that controls the movements of the lateral rectus muscle — either doesn’t develop at all, or doesn’t work properly.
How does CHARGE syndrome happen?
When CHARGE syndrome is caused by mutations in the CHD7 gene, it follows an autosomal dominant pattern of inheritance, which means one copy of the altered gene in each cell is sufficient to cause the disorder.
What are the different types of mental retardation disorders?
Alpha-thalassemia mental retardation syndrome. Alport syndrome. Alström syndrome. Alvarez’ syndrome. Amennorrhea-galactorrhea syndrome. Amniotic band constriction. Amotivational syndrome. Amplified musculoskeletal pain syndromes. Andermann syndrome.
What is a syndrome in psychology?
A syndrome is a set of medical signs and symptoms which are correlated with each other and often associated with a particular disease or disorder. The word derives from the Greek σύνδρομον, meaning “concurrence”. When a syndrome is paired with a definite cause this becomes a disease.
What is the difference between a correction and a retraction?
A lesser withdrawal of content than a full retraction may be labelled a correction. There have been numerous examples of retracted scientific publications. Retraction Watch provides updates on new retractions, and discusses general issues in relation to retractions.
What is Retraction Watch?
Retraction Watch provides updates on new retractions, and discusses general issues in relation to retractions.