Clinical case summary

• Patient: 71-year-old man, working as a driver.
• Main complaint: Cough with sputum production for 2 months.
• History of present illness:
  • Cough began gradually and has been progressive.
  • Sputum quantity is about a handful, described as initially clear/serous and later white, mucoid.
  • No foul smell reported.
  • Cough reportedly worsens with an oil bath.
  • No clear relieving or associated factors recorded.
  • No history of chest pain or weight loss.
• Past history:
  • No known history of tuberculosis, diabetes mellitus, coronary artery disease, chronic kidney disease, asthma/bronchial asthma, hypertension, or thyroid disease.
  • No previous similar illness.
  • Prior surgery for piles is noted, with the exact hospital/place difficult to read.
• Personal and family history:
  • Mixed diet; normal bowel habits.
  • Notes suggest urinary incontinence, but the duration is unclear.
  • Non-smoker, with no alcohol or tobacco use.
  • Married; no significant family history.
• General examination:
  • Conscious and oriented; moderately built and nourished.
  • No pallor, icterus, cyanosis, clubbing, lymphadenopathy, or edema.
  • Pulse: 80/min
  • Respiratory rate: 16/min
  • Blood pressure: 120/70 mmHg
  • Temperature recorded as 100.5°F.
• Respiratory examination:
  • Poor oral hygiene and dental caries noted.
  • No oral thrush; no deviated nasal septum or nasal polyps recorded.
  • Chest appears normal and symmetrical, with symmetrical movements.
  • Trachea central; no chest wall deformity, scars, dilated veins, or rib crowding.
  • Chest expansion about 6 cm, equal on both sides.
  • Percussion resonant throughout.
  • Normal vesicular breath sounds, no added sounds, and normal vocal resonance.
• Other systemic examination:
  • Heart sounds S1 and S2 normal, with no added sounds.
  • Abdomen: no organ enlargement or tenderness.
  • CNS: no focal neurological deficits.

More likely possibilities

1. Bronchiectasis
   • Fits a persistent, relatively large-volume productive cough and low-grade fever.
   • A normal chest examination does not exclude early or mild disease.
   • Confirmation requires a high-resolution CT chest. The BTS bronchiectasis guideline advises considering it with persistent mucopurulent or purulent sputum.
2. Chronic infective bronchitis or unresolved lower respiratory infection
   • Could include persistent bacterial bronchitis, atypical infection, or incompletely resolved pneumonia.
   • Fever supports an infective cause, even when auscultation is normal.
3. Pulmonary tuberculosis
   • Must be actively excluded in an older patient with cough lasting 2 months, particularly in a TB-endemic setting.
   • Lack of weight loss, hemoptysis, lymph nodes, or abnormal chest findings makes it less suggestive, but does not rule it out.
4. Upper-airway cough syndrome
   • Previously called postnasal drip syndrome, from chronic rhinitis, sinus disease, or nasal allergy.
   • It can cause chronic cough with mucus sensation or expectoration, although the notes do not strongly support nasal symptoms.
5. Aspiration-related airway disease
   • Poor oral hygiene/dental caries may increase the risk of recurrent microaspiration and lower respiratory infection.
   • Ask about choking while eating, swallowing difficulty, reflux, nighttime cough, altered voice, stroke history, and dental infection.

Important diagnoses not to miss

1. Lung cancer with post-obstructive infection
   • Age 71 and persistent new cough make chest imaging essential even in a non-smoker.
   • Absence of weight loss, chest pain, hemoptysis, clubbing, or focal chest signs is reassuring but cannot exclude it.
2. COPD/chronic bronchitis
   • Less likely because he is documented as a non-smoker and has no wheeze, dyspnea, or abnormal lung examination.
   • Biomass-fuel, occupational dust/fume, and passive-smoking exposure should still be checked.
3. Asthma, including cough-variant asthma, or non-asthmatic eosinophilic bronchitis
   • May occur with a normal examination between episodes.
   • Usually causes dry cough more often than substantial sputum, so it is not the leading explanation here.
4. Gastroesophageal reflux or laryngopharyngeal reflux
   • Can cause chronic cough, sometimes without heartburn.
   • Less likely to explain sizable sputum or fever, but may coexist. Standard chronic-cough assessment includes upper-airway cough syndrome, asthma/eosinophilic bronchitis, and reflux causes, with chest radiography and spirometry as initial tests when no cause is apparent, as summarized by the AAFP review.
5. Heart failure

• Less likely with normal cardiovascular examination, no edema, orthopnea, paroxysmal nocturnal dyspnea, or basal crackles. It remains a consideration if these symptoms emerge.

Practical initial evaluation

• Chest X-ray
• Sputum Gram stain/culture and sensitivity
• Sputum testing for TB, such as AFB smear and NAAT/CBNAAT as locally available
• CBC with differential, CRP/ESR
• Spirometry with bronchodilator testing
• If chest X-ray is abnormal or cough/sputum persists: CT chest, particularly to assess for bronchiectasis, malignancy, or occult infection