Oropharyngeal leukoplakia is linked to the development of esophageal squamous cell carcinoma, and sometimes this is associated with tylosis, which is thickening of the skin on the palms and soles of the feet (see: Leukoplakia with tylosis and esophageal carcinoma). Dyskeratosis congenita may be associated with leukoplakia of the oral mucosa and of the anal mucosa. Mouth
Within the mouth, leukoplakia is sometimes further classified according to the site involved, e.g. leukoplakia buccalis (leukoplakia of the buccal mucosa) or leukoplakia lingualis (leukoplakia of the lingual mucosa). There are two main clinical variants of oral leukoplakia, namely homogeneous leukoplakia and non-homogeneous (heterogenous) leukoplakia, which are described below. The word leukoplakia is also included within the nomenclature of other oral conditions which present as white patches, however, these are specific diagnoses that are generally considered separate from leukoplakia, with the notable exception of proliferative verrucous leukoplakia, which is a recognized sub-type of leukoplakia. Homogeneous leukoplakia
Homogeneous leukoplakia (also termed "thick leukoplakia") is usually well defined white patch of uniform, flat appearance and texture, although there may be superficial irregularities. Homogeneous leukoplakia is usually slightly elevated compared to surrounding mucosa, and often has a fissured, wrinkled or corrugated surface texture, with the texture generally consistent throughout the whole lesion. This term has no implications on the size of the lesion, which may be localized or extensive. When homogeneous leukoplakia is palpated, it may feel leathery, dry, or like cracked mud. Non-homogeneous leukoplakia
Non-homogeneous leukoplakia is a lesion of non-uniform appearance. The color may be predominantly white or a mixed white and red.
In Margaret A. Lloyd (ed.). Mayo Clinic Cardiology: Concise Textbook. Joseph G. Murphy. OUP USA. pp. 196–202. ISBN 978-0-19-991571-2. Blumenthal RS, Margolis S (2007). Heart Attack Prevention 2007. Johns Hopkins Health. ISBN 978-1-933087-47-4. Dwight J (16 June 2016). "Chest pain, breathlessness, fatigue". In Timothy Cox (ed.). Oxford Textbook of Medicine: Cardiovascular Disorders. Jeremy Dwight. Oxford University Press. pp. 39–47. ISBN 978-0-19-871702-7. Gaziano TA, Gaziano JM (15 September 2016). "Global Evolving Epidemiology, Natural History, and Treatment Trends of Myocardial Infarction". In Morrow DA (ed.). Myocardial Infarction: A Companion to Braunwalds Heart Disease. Elsevier. pp. 11–21. ISBN 978-0-323-35943-6. Morrow DA, Bohula EA (15 September 2016). "Heart Failure and Cardiogenic Shock After Myocardial Infarction". In Morrow DA (ed.). Myocardial Infarction: A Companion to Braunwalds Heart Disease. Elsevier. pp. 295–313. ISBN 978-0-323-35943-6. Morrow DA, Braunwald E (15 September 2016). "Classification and Diagnosis of Acute Coronary Syndromes". In Morrow DA (ed.). Myocardial Infarction: A Companion to Braunwalds Heart Disease. Elsevier. pp. 1–10. ISBN 978-0-323-35943-6. Morrow DA (15 September 2016). "Clinical Approach to Suspected Acute Myocardial Infarction". In Morrow DA (ed.). Myocardial Infarction: A Companion to Braunwalds Heart Disease. Elsevier. pp. 55–65. ISBN 978-0-323-35943-6. Further reading
External links

Myocardial infarction at Curlie
American Heart Associations Heart Attack web site — Information and resources for preventing, recognizing, and treating a heart attack. TIMI Score for UA/NSTEMI Archived 2016-11-05 at the Wayback Machine and STEMI Archived 2009-03-19 at the Wayback Machine
HEART Score for Major Cardiac Events Archived 2016-10-28 at the Wayback Machine
"Heart Attack". MedlinePlus. U.S. National Library of Medicine.