Most facilities require that patients have a person with them to help them home afterwards (depending on the sedation method used). One common after-effect from the procedure is a bout of flatulence and minor wind pain caused by air insufflation into the colon during the procedure. An advantage of colonoscopy over X-ray imaging or other less invasive tests is the ability to perform therapeutic interventions during the test. A polyp is a growth of excess of tissue that can develop into cancer. If a polyp is found, for example, it can be removed by one of several techniques. A snare device can be placed around a polyp for removal. Even if the polyp is flat on the surface it can often be removed. For example, the following shows a polyp removed in stages:

Pain management
The pain associated with the procedure is not caused by the insertion of the scope but rather by the inflation of the colon in order to do the inspection. The scope itself is essentially a long, flexible tube about a centimeter in diameter — that is, as big around as the little finger, which is less than the diameter of an average stool. The colon is wrinkled and corrugated, somewhat like an accordion or a clothes-dryer exhaust tube, which gives it the large surface area needed for water absorption.
Keratoderma is a hornlike skin condition. Classification
The keratodermas are classified into the following subgroups:: 506

Congenital
Simple keratodermas
Diffuse palmoplantar keratodermas
Diffuse epidermolytic palmoplantar keratoderma
Diffuse nonepidermolytic palmoplantar keratoderma
mal de Meleda
Focal palmoplantar keratoderma
Striate palmoplantar keratoderma
Punctate palmoplantar keratoderma
Keratosis punctata palmaris et plantaris
Spiny keratoderma
Focal acral hyperkeratosis
Complex keratodermas
Diffuse palmoplantar keratoderma
Erythrokeratodermia variabilis
Palmoplantar keratoderma of Sybert
Olmsted syndrome
Naegeli–Franceschetti–Jadassohn syndrome
Focal palmoplantar keratoderma
Papillon–Lefèvre syndrome
Pachyonychia congenita type I
Pachyonychia congenita type II
Focal palmoplantar keratoderma with oral mucosal hyperkeratosis
Camisa disease
Ectodermal dysplasias
Cloustons hidrotic ectodermal dysplasia
Acrokeratotic poikiloderma
Dermatopathic pigmentosa reticularis
Syndromic keratodermas
Vohwinkel syndrome
Palmoplantar keratoderma associated with esophageal cancer
Palmoplantar keratoderma and spastic paraplegia
Naxos disease
Striate palmoplantar keratoderma, woolly hair, and left ventricular dilated cardiomyopathy
Keratitis-ichthyosis-deafness syndrome
Corneodermatosseous syndrome
Huriez syndrome
Oculocutaneous tyrosinemia
Cardiofaciocutaneous syndrome
Schöpf–Schulz–Passarge syndrome

Acquired
Acquired keratodermas
AIDS-associated keratoderma
Arsenical keratoses
Calluses
Climacteric keratoderma
Clavi (Corns)
Eczema
Human papillomavirus
Keratoderma blenorrhagicum
Lichen planus
Norwegian scabies
Paraneoplastic keratoderma
Psoriasis
Reactive arthritis
Secondary syphilis
Tinea pedis
Sézary syndrome
Tuberculosis verrucosa cutis
Drug-induced keratoderma

See also
Palmoplantar keratoderma
Skin lesion
List of cutaneous conditions
List of conditions caused by problems with junctional proteins

References


== External links ==