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Items: 3

1.

Pulmonary alveolar proteinosis acquired

Pulmonary alveolar proteinosis is a pathologic entity characterized by intraalveolar surfactant accumulation. There are 3 clinically distinct forms: hereditary (usually congenital), secondary, and acquired. The acquired form of pulmonary alveolar proteinosis is the most common form, accounting for approximately 90% of cases. The mean age at diagnosis is 39 years and it is associated with smoking in 72% of cases. The estimated incidence and prevalence are 0.36 and 3.70 cases per million, respectively (Trapnell et al., 2003; Seymour and Presneill, 2002). Secondary pulmonary alveolar proteinosis develops in association with conditions involving functional impairment or reduced numbers of alveolar macrophages. Such conditions include some hematologic cancers, pharmacologic immunosuppression, inhalation of inorganic dust or toxic fumes, and certain infections. Congenital pulmonary alveolar proteinosis is a rare, severe, often fatal disorder of newborns associated with pulmonary surfactant metabolism dysfunction caused by mutations in genes involved in surfactant metabolism (see, e.g., SMDP1, 265120) (Trapnell et al., 2003). See 300770 for information on congenital PAP due to CSF2RA (306250) deficiency. [from OMIM]

MedGen UID:
410079
Concept ID:
C1970472
Disease or Syndrome
2.

Pituitary adenoma predisposition

MedGen UID:
354959
Concept ID:
C1863340
Disease or Syndrome
3.

Pulmonary alveolar proteinosis

Abnormal accumulation of surfactant-like, periodic acid-schiff-positive lipoproteinaceous material in macrophages within the alveolar spaces and distal bronchioles. This results in gas exchange impairment leading to dyspnea and alveolar infiltrates. [from HPO]

MedGen UID:
18760
Concept ID:
C0034050
Disease or Syndrome
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