Elephantiasis is a disease that is
characterized by the thickening of the skin and underlying tissues,
especially in the legs and male genitals. In some cases the disease can
cause certain body parts, such as the scrotum, to swell to the size of a
softball or basketball. "Elephantitis" is a common mis-hearing of the
term, from confusing the ending -iasis (process or resulting condition)
with the more commonly heard -itis (irritation or inflammation),
resulting in "Elephantitis" meaning "inflammation of the elephant". The
proper medical term for the disease is elephantiasis, and it is caused
by filariasis or podoconiosis.
Someone who is infected with
elephantiasis disease usually occurs in childhood, where in a long time
(many years) began to be felt development.
The acute symptoms that may occur include:
- Fever over and over for 3-5 days, fever may be lost when the break and came back after working hard.
- Swollen lymph nodes (without any injury), groin area, armpits (lymphadenitis), which looks red, hot and painful
- Inflammation of lymph channels that feels hot and pain radiating from the base of the foot or base of the arm towards the end (retrograde lymphangitis)
- filarial abscess due to often suffer from swollen lymph nodes, it can burst and release pus and blood
- Enlargement of the legs, arms, breasts, testicles that look a little flushed and feels hot (early lymphodema)
While
the chronic symptoms of the disease elephantiasis, which formed as a
permanent enlargement (elephantiasis) in the legs, arms, breasts,
testicles (elephantiasis skroti).
Elephantiasis occurs in the
presence of microscopic, thread-like parasitic worms such as Wuchereria
bancrofti, Brugia malayi, and B. timori, all of which are transmitted by
mosquitoes. However, the disease itself is a result of a complex
interplay between several factors: the worm, the symbiotic Wolbachia
bacteria within the worm, the host’s immune response, and the numerous
opportunistic infections and disorders that arise. Consequently, it is
common in tropical regions and Africa. The adult worms only live in the
human lymphatic system. Obstruction of the lymphatic vessels leads to
swelling in the lower torso, typically in the legs and genitals. It is
not definitively known if this swelling is caused by the parasite
itself, or by the immune system's response to the parasite.
Alternatively, elephantiasis may
occur in the absence of parasitic infection. This nonparasitic form of
elephantiasis is known as "nonfilarial elephantiasis" or "podoconiosis",
and areas of high prevalence have been documented in Uganda, Tanzania,
Kenya, Rwanda, Burundi, Sudan, Egypt and Ethiopia. The worst affected
area is Ethiopia, where up to 6% of the population is affected in
endemic areas. Nonfilarial elephantiasis is thought to be caused by
persistent contact with irritant soils: in particular, red clays rich in
alkali metals such as sodium and potassium and associated with volcanic
activity.
According to medical experts the
worldwide efforts to eliminate lymphatic filariasis is on track to
potentially be successful by 2020. An estimated 6.6 million children
have been prevented from being infected, with another estimated 9.5
million in whom the progress of the disease has been stopped.
For podoconiosis, international
awareness of the disease will have to rise before elimination is
possible. Podoconiosis does not yet appear on the Neglected Tropical
Disease lists, and is not part of the work of organizations such as the
World Health Organization.
Treatments for lymphatic
filariasis differ depending on the geographic location of the endemic
area. In sub-Saharan Africa, albendazole is being used with ivermectin
to treat the disease, whereas elsewhere in the world, albendazole is
used with diethylcarbamazine. Geo-targeting treatments is part of a
larger strategy to eventually eliminate lymphatic filariasis by 2020.
Another form of effective
treatment involves rigorous cleaning of the affected areas of the body.
Several studies have shown that these daily cleaning routines can be an
effective way to limit the symptoms of lymphatic filariasis. The
efficacy of these treatments suggests that many of the symptoms of
elephantiasis are not directly a result of the lymphatic filariasis but
rather the effect of secondary skin infections.
In addition, surgical treatment
may be helpful for issues related to scrotal elephantiasis and
hydrocele. However, surgery is generally ineffective at correcting
elephantiasis of the limbs.
A vaccine is not yet available but is likely to be developed in the near future.
Treatment for podoconiosis
consists of consistent shoe-wearing (to avoid contact with the irritant
soil) and hygiene - daily soaking in water with an antiseptic (such as
bleach) added, washing the feet and legs with soap and water,
application of ointment, and in some cases, wearing elastic bandages.
Antibiotics are used in cases of infection.
In 2003 it was suggested that
the common antibiotic doxycycline might be effective in treating
lymphatic filariasis. The parasites responsible for elephantiasis have a
population of symbiotic bacteria, Wolbachia, that live inside the worm.
When the symbiotic bacteria are killed by the antibiotic, the worms
themselves also die.
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