Sputum: Or something else? Differential Diagnosis

Respiratory System (J00-J99)

  • Bronchial asthma
  • Bronchiectasis (synonym: bronchiectasis) – persistent irreversible saccular or cylindrical dilatation of the bronchi (medium-sized airways) that may be congenital or acquired; symptoms: chronic cough with “mouthful expectoration” (large-volume triple-layered sputum: foam, mucus, and pus), fatigue, weight loss, and decreased exercise capacity
  • Bronchocentric granulomatosis – granulomatous disease characterized by primary involvement of the bronchial or bronchiolar wall.
  • Chronic bronchitis
  • Chronic obstructive pulmonary disease (COPD)
  • Exacerbation of chronic bronchitis – acute exacerbation of chronic bronchitis.
  • Exogenous allergic alveolitis (hypersensitivity pneumonitis) – farmer’s lung, bird breeder’s lung, etc.
  • Influenza infection
  • Upper and lower respiratory tract infections, unspecified
  • Influenza (flu)
  • Papillomatosis – occurrence of multiple benign neoplasms, mostly in the respiratory tract.
  • Pneumonia (pneumonia)
  • Sinusitis (sinusitis)
  • Upper-airway-cough syndrome (UARS; formerly: postnasal drip syndrome, (PNDS), sinubronchial syndrome) – symptoms: chronic cough, throat irritation, overproduction of mucus on the nasal mucosa or in the paranasal sinuses, which leads to accumulation of secretions in the throat area

Endocrine, nutritional and metabolic diseases (E00-E90).

Cardiovascular System (I00-I99).

  • Heart failure (cardiac insufficiency)
  • Pulmonary embolism – blockage of a pulmonary vessel by a blood clot.

Infectious and parasitic diseases (A00-B99).

  • Pertussis (whooping cough)
  • Tuberculosis (consumption)

Mouth, esophagus (esophagus), stomach, and intestines (K00-K67; K90-K93).

Neoplasms – tumor diseases (C00-D48).

  • Bronchial carcinoma (lung cancer)

Causes (external) of morbidity and mortality (V01-Y84).

  • Aspiration – inhalation of foreign substances.

Further

  • Smoking