Correct Answer - D Ans. is 'd' i.e., All of the above Acanth | Dermatology

Correct Answer - D

Ans. is 'd' i.e., All of the above

Acanthosis nigricans

Acanthosis nigricans is a brown to black, velvety hyperpigmentation of the skin. It is usually found in body folds, such as posterior & lateral folds of neck, axilla, groin, umblicus, forehead. It typically occurs in individuals younger than 40 years of age.

Histopathologically papillomatosis is characteristically seen; however, there is no hypermelanosis and there is only mild acanthosis, if present.

It is associated with

Obesity (most common)

Endocrinopathies-> Hypothyroidism, hyperthyroidism, insuline resistance diabetes, Cushing's disease, PCOD, Bloom syndrome. 3. Internal malignancy-> Gastric adenocarcinoma