PERNIOSIS SKIN DISEASES
Diagnosis
Lesions which
may be mistaken for
chilblains are papulo-necrotic tuberculides
, lupus erythematosus
and nodular vasculitis .
The former are smaller and
more regular in size
than chilblains, they occur
also
on
the elbows, shoulders, and legs,
and
leave small white depressed
scars.
Ordinarily chilblains leave no
scars,
but it they become
ulcerated they leave irregular
scars.
Papulo-necrotic tuberculides are apt
to occur in people
who have acrocyanosis and
possibly actual chilblains as well.
Lupus erythematosus when
it occurs on the hands
forms oval plaques or
rings on the backs
of the fingers; these are
bluish-red and may be scaly,
or may show the characteristic
stippling. other lesions of
lupus erythematosus will
most likely be present also
on the face. Nodular vasculitis
causes
more inflammatory lesions, does
not ulcerate, lacks the
background of cold, blue calves
and occurs in older
women.
Treatment
Warm clothing is
essential,
and this applies as much
to the trunk as
to the extremities. on the
whole,
vasodilator drugs have proved
disappointing, but some improvement
may be obtained from
tolazoline hydrochloride 25-50
mg. thrice daily, dibenylene 10-20 mg.
thrice daily or bamethan sulphate
(Vasculit) 12.5 mg. four times a day.
The latter is probably
the most effective, but the side-effects
may be troublesome. Severe
chilblains can be incapacitating
and then sympathectomy may
be indicated.
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