Pigmented transverse nasal band (PTNB) is an interesting morphological entity mainly of cosmetic concern. It is believed to be related to a defect in the development of the nasal cartilages and bones from childhood to adolescence. Some patients may have genetic predisposition. It is asymptomatic in nature and may be associated with certain dermatological conditions such as seborrheic diathesis, dermatosis papulosa nigra, ichthyosis, atopic dermatitis, acne vulgaris, psoriasis, and seborrheic melanosis.

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Periorbital pigmentation is a commonly encountered condition which presents clinically as bilateral round, oval or semicircular homogenous dark brown pigmented macules in the periocular region. It may influence quality of life of an individual with its strong psychological impact. We present a case of middle-aged female patient, who had periorbital pigmentation as a manifestation of acanthosis nigricans. On evaluation, she was found to have hypertension, hyperglycemia, and dyslipidemia and she fulfilled the criteria for metabolic syndrome. We believe, it is important to evaluate the patients who present as periorbital pigmentation with clinical features of acanthosis nigricans for underlying metabolic syndrome. K E Y W O R D S acanthosis nigricans, metabolic syndrome, periorbital pigmentation How to cite this article: Zawar V, Daga S, Pawar M, Kumavat S. Periorbital pigmentation: An alarming sign of metabolic syndrome.

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