на главную

A 65-year-old woman consulted for this red lesion on her right leg for 8 months. (clinical picture above)

Fig 1: polarized-light contact dermoscopy with a slight pressure
of the dermoscope.

Dermoscopy with a polarized-light contact dermoscope revealed an unspecific pattern and typical glomerular vessels in a symmetric distribution, in favor of a Bowen disease.

Fig 2: polarized-light contact dermoscopy with
a heavier pressure of the dermoscope which emptied
the blood vessels.

Polarized-light dermoscopy offers a better visualization than contact-light dermoscopy for blood vessels whatever the type of vessels, at the condition not to heavily press on the lesion.

Glomerular vessels are the specific local criteria for diagnosing Bowen disease.

Other non specific criteria for Bowen disease are:
unspecific global pattern
scales *
ulceration*
* not present in our case

A 72-year-old woman consulted for this pink lesion on her right leg.

Dermoscopy revealed spared glomerular vessels in favor of a Bowen disease.

A 84-year-old woman presented a keratotic erythematous lesion of her right leg.

Dermoscopy revealed scales many glomerular vessels in favor of a Bowen's disease.
See the glomerular vessels. The pressure of the dermoscope has to be slight not to empty the vessels. Polarized dermoscopy is more performing than contact immersion dermoscopy to see accurately vessels.

A 75-year-old woman consulted for an enlarging red tumor of her right ankle.