Nevus Unius Lateris. Presented by DR. THEODORE CORNBLEET.
A native of Lithuania has had since birth a linear formation on his left side.
The formation traverses the length of the sternum, parallels the clavicle, and thence threads its way down the anterior surface of arm, forearm, wrist, and palm to the tip of the thumb. Posteriorly, the line runs along the upper border of the scapula. A narrow space of normal skin over the posterior part of the shoulder separates the anterior and posterior elements. The lesions are verrucous and papilliform, of a dirty grayish color, surmounted by a keratolytic surface. The average width of the excrescences is about 1 cm.
Some areas have been treated, with resultant scarring and flattening. There are no subjective symptoms.
Discussion
DR. STEPHEN ROTHMAN: I wonder if the surrounding redness represents hemangiomatous proliferation.
The linear nevus of the clavicular region has
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