Chief complaint

Darkening of the Skin

Adrenal Insufficiency

Hypovolemia

Amyloidosis

Anemia

Autonomic Failure

Autonomic Neuropathy

Behçet Disease

Deconditioning

Fissured Tongue

Geographic Tongue

Hemorrhage

Hepatopulmonary Syndrome

Hypoglossal Nerve Palsy

Hypoxemia

Immunosuppression

Kawasaki Disease

Lead Poisoning

Leukemia

Measles

Medication Effect

Medication-induced Gingival Enlargement

Multiple System Atrophy

Nutritional Deficiency

Oral Cancer

Periodontal Disease

Peutz-Jeghers Syndrome

Postural Orthostatic Tachycardia Syndrome