Which term describes hyperpigmentation that is hormone-related and presents as blotchy patches on the skin?

The term that describes hyperpigmentation that is hormone-related and presents as blotchy patches on the skin is melasma. Melasma is specifically characterized by dark, discolored patches usually located on the face, often occurring in women, particularly during pregnancy or when taking hormonal medications. These patches are primarily triggered by hormonal changes and sun exposure, making melasma a unique condition within the broader category of hyperpigmentation.

In contrast, psoriasis is a chronic autoimmune condition that causes red, scaly patches on the skin but is not associated with hormonal changes. Rosacea is a chronic inflammatory skin condition that leads to facial redness and is characterized by visible blood vessels and sometimes acne-like breakouts, rather than hyperpigmentation. Accutane is a medication used to treat severe acne and does not describe a skin condition but rather a treatment option. Therefore, melasma is the best fit for the description provided.