Annular Lesion.

What is your diagnosis?

 

Confluent and reticulate papillomatosis of Gougerot & Carteaud.

This patient had hyperpigmented, hyperkeratotic, patches and plaques with scale on the neck, upper-back, arms and sternal area. CRP occurs predominantly in young adults and teenagers, with cosmetically displeasing brown scaling patches and plaques affecting the neck, upper trunk and axillae. Clinically, the eruption is most often confused with tinea versicolor. It is important to recognize this disorder, because minocycline therapy is highly effective in most patients.

 

Thinner Dermatitis

Paint Thinner is an effective diluent, helping painters achieve the optimal varnish or paint consistency. Contact and inhalation can cause eye, nose, and throat irritation, dizziness, and dermatitis. This patient presented with acute irritant dermatitis due to exposure to thinner. It is important to dispose of such chemicals properly, as they can contaminate our groundwater too. There is even a report of Exfoliative dermatitis from exposure to paint thinner.