Medication Summary
The goal of pharmacotherapy in acanthosis nigricans is to improve cosmetic appearance.
Topical retinoids
Class Summary
These agents promote shedding of hyperkeratotic skin. They are modifiers of keratinocyte adhesion, differentiation, and proliferation.
Tretinoin topical (Avita, Retin-A)
Promotes detachment of cornified cells and enhances shedding of corneocytes. Inhibits microcomedo formation and eliminates lesions that are present. Makes keratinocytes in sebaceous follicles less adherent and easier to remove.
Available as 0.025%, 0.05%, and 0.1% creams. Available also as 0.01% and 0.025% gels.
Keratolytic Agent
Ammonium lactate
Alpha-hydroxy acid; normal constituent of tissues and blood. Believed to act as humectant when applied to the skin. This may influence hydration of the stratum corneum. In addition, when applied to the skin, may act to decrease corneocyte cohesion. The mechanism(s) by which this is accomplished is not yet known.
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| Syndromes Associated With Acanthosis Nigricans | Malignant Diseases Associated With Acanthosis Nigricans |
| Acromegaly | Bile duct cancer |
| Alstrom telangiectasia | Bladder cancer |
| Barter syndrome | Breast cancer |
| Beare-Stevenson syndrome | Colon cancer |
| Benign encephalopathy | Endometrial cancer |
| Bloom syndrome | Esophageal cancer |
| Capozucca syndrome | Gallbladder cancer |
| Chondrodystrophy with dwarfism | Hodgkin disease |
| Costello syndrome | Kidney cancer |
| Crouzon syndrome | Liver cancer |
| Dermatomyositis | Lung cancer |
| Familial pineal body hypertrophy | Mycosis fungoides |
| Gigantism | Non-Hodgkin lymphoma |
| Hashimoto thyroiditis | Ovarian cancer |
| Hirschowitz syndrome | Pancreatic cancer |
| Lawrence-Moon-Bardet syndrome | Pheochromocytoma |
| Lawrence-Seip syndrome | Prostate cancer |
| Lipoatrophic diabetes mellitus | Rectal cancer |
| Lupoid hepatitis | Testicular cancer |
| Lupus erythematosus | Thyroid cancer |
| Phenylketonuria | Wilms tumor |
| Pituitary hypogonadism | |
| Pseudoacromegaly | |
| Prader-Willi syndrome | |
| Pyramidal tract degeneration | |
| Rud syndrome | |
| Scleroderma | |
| Stein-Leventhal syndrome | |
| Type A syndrome (HAIR-AN syndrome) | |
| Werner syndrome | |
| Wilson syndrome |

