A National Registry For Pulmonary Alveolar Proteinosis

Inclusion Criteria for Part A and Part B: * Written informed consent and assent, if applicable Inclusion Criteria for Part A (Cross Sectional Study of PAP Syndrome) * History of chest computed tomogram or chest radiograph findings compatible with PAP * History of diagnosis of PAP made by at least one of the following methods: * Positive (Abnormal) serum GMAb test -OR- * Lung biopsy clearly documenting the presence of PAP of any type or degree -OR- * Bronchoalveolar lavage cytology compatible with PAP -OR- * Recessive or compound mutations in genes known to cause PAP, i.e. GM-CSF receptor α or β chain, GM-CSF, surfactant protein B or C or ABCA3, ABCG1, ABCA1, TTF1 Inclusion Criteria For Part B (Longitudinal \& PRO Survey Study of autoimmune PAP Patients) * Diagnosis of autoimmune PAP as indicated by: * Positive (Abnormal) Serum GMAb Test -AND- * History of chest CT or x-rays findings compatible with PAP -OR- * Lung biopsy clearly documenting the presence of PAP of any type or degree -OR- * Bronchoalveolar lavage cytology compatible with PAP Exclusion Criteria or Part A and Part B: * Individuals who have a serious medical illness that, in the opinion of the investigator, is likely to interfere with completion of the study will be excluded. For Part A (Cross-sectional Study of PAP Syndrome) * Individuals that do not have a diagnosis of PAP For Part B (Longitudinal \& PRO Survey Study of autoimmune PAP Patients) * Individuals that do not have a diagno…