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PEYRONIE’s
DISEASE – SEVERE BENDING OF THE ERECT PENIS
The French surgeon François de la Peyronie
first described Peyronie's disease in 1743. It manifests itself
as a severe bending
of the erect penis. Men should be aware that it is perfectly normal
for penises to bend or curve somewhat. The bending of the erect
penis in Peyronies disease is much more severe, can be painful,
and often prevents sexual intercourse.
Peyronie's disease is characterized by a hard
lump of scar tissue, or plaque, that forms on the penis. The
plaque develops on the
upper or lower side of the penis in layers containing erectile
tissue. Cases of Peyronie's disease range from mild to severe.
Symptoms may develop slowly or appear overnight. It is unclear
exactly what causes Peyronie’s Disease. In severe cases,
the hardened plaque reduces flexibility, causing pain and forcing
the penis to bend or arc during erection. In many cases, the pain
decreases over time, but the bend in the penis may remain a problem,
making sexual intercourse difficult. The sexual problems that result
can disrupt a couple's physical and emotional relationship and
lead to lowered self-esteem in the man. In a small percentage of
patients with the milder form of the disease, inflammation may
resolve without causing significant pain or permanent bleeding.
The plaque itself is noncancerous. A plaque on the top of the
shaft (most common) causes the penis to bend upward; a plaque on
the underside causes it to bend downward. In some cases, the plaque
develops on both top and bottom, leading to indentation and shortening
of the penis. At times, pain, bending, and emotional distress might
prohibit sexual intercourse.
One study found Peyronie's disease occurring in 1% of men. Although
the disease occurs mostly in middle-aged men, younger and older
men can acquire it. About 30 percent of people with Peyronie's
disease develop fibrosis (hardened cells) in other elastic tissues
of the body, such as on the hand or foot. In some cases, men who
are related by blood tend to develop Peyronie's disease, which
suggests that familial factors might make a man vulnerable to the
disease.
Men with Peyronie's disease usually seek medical attention because
of painful erections and difficulty with intercourse. Since the
cause of the disease and its development are not well understood,
doctors treat the disease empirically; that is, they prescribe
and continue methods that seem to help. The goal of therapy is
to keep the Peyronie's patient sexually active. Providing education
about the disease and its course often is all that is required.
No strong evidence shows that any treatment other than surgery
is effective. Experts usually recommend surgery only in long-term
cases in which the disease is stabilized and the deformity prevents
intercourse.
Many researchers believe the plaque of Peyronie's disease develops
following trauma (hitting or bending) that causes localized bleeding
inside the penis. A chamber (actually two chambers known as the
corpora cavernosa) runs the length of the penis. The inner-surface
membrane of the chamber is a sheath of elastic fibers. A connecting
tissue, called a septum, runs along the center of the chamber and
attaches at the top and bottom. If the penis is abnormally bumped
or bent, an area where the septum attaches to the elastic fibers
may stretch beyond a limit, injuring the lining of the erectile
chamber and, for example, rupturing small blood vessels. As a result
of aging, diminished elasticity near the point of attachment of
the septum might increase the chances of injury. The damaged area
might heal slowly or abnormally for two reasons: repeated trauma
and a minimal amount of blood-flow in the sheath-like fibers. In
cases that heal within about a year, the plaque does not advance
beyond an initial inflammatory phase. In cases that persist for
years, the plaque undergoes fibrosis, or formation of tough fibrous
tissue, and even calcification, or formation of calcium deposits.
Treatment
Because the course of Peyronie's disease is different in each
patient and because some patients experience improvement without
treatment, medical experts suggest waiting 1 to 2 years or longer
before attempting to correct it surgically. During that wait, patients
often try treatments whose effectiveness has not been proven. Some
researchers have given men vitamin E orally and have reported improvements.
Similar inconclusive success has been attributed to oral application
of para-aminobenzoate, belonging to the family of B-complex molecules.
Researchers have injected chemical agents such as verapamil, collagenase,
steroids, and calcium channel blockers directly into the plaques.
These interventions are still considered unproven. Steroids, such
as cortisone, have produced unwanted side effects, such as the
atrophy of healthy tissues.
Peyronie's disease has been treated with some success by surgery.
The two most common surgical methods are removal or expansion of
the plaque followed by placement of a patch of skin or artificial
material and removal of tissue from the side of the penis opposite
the plaque, which cancels out the bending effect. The first method
can involve partial loss of erectile function. The second method
causes a shortening of the erect penis. Some men choose to receive
an implanted device that increases rigidity of the penis. In some
cases, an implant alone will straighten the penis.
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