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Case Report • An. Bras. Dermatol. 95 (6) • Nov-Dec 2020 • https://doi.org/10.1016/j.abd.2019.07.010   copy

Primary hypothyroidism with exuberant dermatological manifestations☆ İ How to cite this article: Silva TS, Faro GBA, Cortes MGB, Rego VRPA. Primary hypothyroidism with exuberant dermatological manifestations. An Bras Dermatol. 2020;95. ,☆☆ İİ Study conducted at the Universidade Federal da Bahia, Salvador, BA, Brazil.

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Abstract

Thyroid hormone has effects on the skin. Patients with hypothyroidism have changes such as dry, scaly and rough skin. Increase carotene in the dermis becomes a yellowish tone to the skin of the patient with hypothyroidism. There is an increase in capillary cycle (anagen phase) and nail growth and a reduction in eccrine gland secretion. It is a case of primary hypothyroidism with nail manifestations associated with dermatologic disorders and successful treatment with levothyroxine. Receptors for thyroid hormone have already been found in keratinocytes, fibroblasts, hair follicles and sebaceous glands. Genes responsive to thyroid hormones and elements of the hypothalamic–pituitary–thyroid axis were identified on the skin. This report highlights the importance of cutaneous manifestations as markers of thyroid disease.

KEYWORDS
Hypothyroidism; Thyroid diseases; Thyroid gland; Thyroid hormones; Thyroxine

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