Case 323: Minute Pulmonary Meningothelial-like Nodules

Area of Science:

• Pulmonology
• Radiology
• Internal Medicine

Background:

• A 70-year-old woman with a history of asthma and diabetes mellitus presented with dyspnea and cough.
• Previous chest CT revealed multiple pulmonary nodules, but follow-up was lost.

Observation:

• Physical examination and laboratory tests were largely unremarkable.
• Pulmonary function tests showed normal forced expiratory volume and forced vital capacity, but reduced total lung capacity and diffusing capacity for carbon monoxide.
• Volumetric thin-section CT was performed to evaluate lung nodules and the pulmonary interstitium.

Findings:

• The CT scan was crucial for evaluating previously identified lung nodules and the pulmonary interstitium in a patient with dyspnea and cough.
• Pulmonary function tests indicated a restrictive pattern, with reduced total lung capacity and diffusing capacity for carbon monoxide.

Implications:

• Further investigation is needed to determine the cause of the pulmonary nodules and interstitial changes.
• This case highlights the importance of follow-up for pulmonary findings, especially in patients with underlying respiratory or systemic conditions.