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Vol. 58. Issue 9.
Pages 662 (September 2022)
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Vol. 58. Issue 9.
Pages 662 (September 2022)
Clinical Image
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Exceptional Case of Endobronchial Foreign Body Mimicking Primitive Lung Cancer
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Andrea Caraa,, Antonio Mazzellaa,,
Corresponding author
antonio.mazzella@ieo.it

Corresponding author.
, Lorenzo Spaggiaria,b
a Department of Thoracic Surgery, IEO, European Institute of Oncology IRCCS, Milan, Italy
b Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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52 years-old woman presented persistent cough and single-episode haemoptysis, no clinical history. CT-scan showed hypoplastic left lower lobe with 28mm×32mm PET positive (SUVmax=2.7) lesion obstructing bronchus. Bronchoscopy showed non-transitable bronchial obstruction and oedema of mucosa. Biopsies suggested well-differentiated neoplasm (adenoma/adenocarcinoma G1). Mutational panel showed presence of BRAF mutation. Bronchial-sleeve left lower lobectomy was programmed. Frozen-section bronchial margin resulted negative and a 2.5cm plastic screw was found in the basal pyramid. Histology showed a pattern of giant-cell chronic inflammation without neoplasm. No mutations of BRAF were found in the specimen. Patient didn’t recall foreign-body inhalation during youth. Inveterate foreign-body inhalation is a rare problem in adults and left lower bronchus localization relatively uncommon (14% of cases).1 In this case foreign-body caused chronic inflammation and consequent tissue reaction mimicking a malignant process. Furthermore, bronchial obstruction prevented normal lobar development causing hypoplasia. The absence of radiological findings suggesting foreign-body (non-metal screw) addressed an endobronchial lesion (NSCLC/carcinoid/hamartoma) and the endoscopic biopsy with BRAF mutation constituted a challenging element for correct preoperatory diagnosis. However surgical approach was also prompted by the hypoplastic lobe, towards preventing potential uncontrollable haemoptysis or recurrent pneumonia and would have been the correct approach even with a correct preoperatory diagnosis (Fig. 1).

Fig. 1
(0.76MB).
Reference
[1]
I.S. Sehgal, S. Dhooria, B. Ram, N. Singh, A.N. Aggarwal, D. Gupta, et al.
Foreign body inhalation in the adult population: experience of 25,998 bronchoscopies and systematic review of the literature.
Respir Care, 60 (2015), pp. 1438-1448

These authors contributed equally as first authors.

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