Invasive Mucinous Adenocarcinoma Carcinoma of Lung Misdiagnosed as Non-Resolving Pneumonia: A Clinical Pitfall

Dr. Kushanth P, Dr. Aswini Kumar Mohapatra

Abstract: A female in her late 60s, with no associated co-morbidities, came with complaints of cough with expectoration and exertional dyspnoea for 2 months and fever for 15 days. She was treated at the outside hospital 2months back for similar complaints, diagnosed to have pneumonia and treated with injectable antibiotics and other symptomatic measures and discharged. Following which patient had multiple episodes of recurrence of symptoms and each time was treated with anti-infection measures in view of the persistence of lesions on chest x-ray. Later was referred to our hospital as worsening of symptoms even after 3 days of treatment for further evaluation. After admission patient was empirically started on antibiotics and Computed tomography of thorax was done that revealed bilateral diffuse air space opacities with adjacent ground glassing and air bronchograms within. Bronchoscopy was done and bronchial washing microbiological evaluation was normal, auto immune workup was insignificant and thereby CT guided biopsy of lung was done that revealed Invasive Mucinous Adenocarcinoma Lung. This case report outlines a case of Invasive Mucinous Adenocarcinoma presenting as non resolving pneumonia, and to consider early pathological examination in cases presenting as bilateral lung lesions not responding to antibiotics.

Keywords: Non-resolving pneumonia, Adenocarcinoma lung

How to Cite?: Dr. Kushanth P, Dr. Aswini Kumar Mohapatra, "Invasive Mucinous Adenocarcinoma Carcinoma of Lung Misdiagnosed as Non-Resolving Pneumonia: A Clinical Pitfall", Volume 14 Issue 10, October 2025, International Journal of Science and Research (IJSR), Pages: 865-868, https://www.ijsr.net/getabstract.php?paperid=SR251015122638, DOI: https://dx.doi.org/10.21275/SR251015122638