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Bronchial lipoma is a rare benign tumor of the lung, which is often misdiagnosed due to concomitant pulmonary diseases. In addition, the coexistence of endobronchial lipoma and lung cancer is extremely unusual. To date, no related computed tomography (CT) images have been reported. The patient was a 53-year-old man, who was admitted to our hospital with cough, yellow phlegm, and fever for 1 week. The CT image showed an irregular mass in the medial segment of the right middle lobe (B4a) with surrounding ground glass opacity, and another solid nodule in the right lower lobe (B6b). Unfortunately, after 2 weeks of anti-inflammatory treatment, the bronchial invasion of the B4a nodule did not decrease significantly, so further bronchoscopy was carried out and tumor resection was performed using endoscopic mucosal resection with a ligation device (EMR-L). During the follow-up 4 months, it was found that the B6b nodule was marked enlargement and then removed. The lesions of the B4a and B6b were confirmed as endobronchial lipoma and squamous cell carcinoma (T1aN0M0) by histopathology and immunohistochemical staining, respectively, and no postoperative radiotherapy or chemotherapy was performed. Regrettably, after 29 months of follow-up, we observed recurrence and slow enlargement of the lipoma in its original location, progressive emphysema in both lungs, and solitary chest wall metastasis from the B6b squamous cell carcinoma that had been resected. Therefore, endobronchial endoscopy resection should be carefully selected for larger endobronchial lipoma. If it is accompanied by early squamous cell carcinoma (T1aN0M0), we still recommend active postoperative chemoradiotherapy.
Bronchial lipoma is a rare benign tumor of the lung, which is often misdiagnosed due to concomitant pulmonary diseases. In addition, the coexistence of endobronchial lipoma and lung cancer is extremely unusual. To date, no related computed tomography (CT) images have been reported. The patient was a 53-year-old man, who was admitted to our hospital with cough, yellow phlegm, and fever for 1 week. The CT image showed an irregular mass in the medial segment of the right middle lobe (B4a) with surrounding ground glass opacity, and another solid nodule in the right lower lobe (B6b). Unfortunately, after 2 weeks of anti-inflammatory treatment, the bronchial invasion of the B4a nodule did not decrease significantly, so further bronchoscopy was carried out and tumor resection was performed using endoscopic mucosal resection with a ligation device (EMR-L). During the follow-up 4 months, it was found that the B6b nodule was marked enlargement and then removed. The lesions of the B4a and B6b were confirmed as endobronchial lipoma and squamous cell carcinoma (T1aN0M0) by histopathology and immunohistochemical staining, respectively, and no postoperative radiotherapy or chemotherapy was performed. Regrettably, after 29 months of follow-up, we observed recurrence and slow enlargement of the lipoma in its original location, progressive emphysema in both lungs, and solitary chest wall metastasis from the B6b squamous cell carcinoma that had been resected. Therefore, endobronchial endoscopy resection should be carefully selected for larger endobronchial lipoma. If it is accompanied by early squamous cell carcinoma (T1aN0M0), we still recommend active postoperative chemoradiotherapy.
Endobronchial lipomas are rare benign lung tumors that can cause bronchial obstruction and parenchymal damage. While an uncommon etiology, they are often misdiagnosed due to a clinical presentation similar to obstructive pulmonary pathologies such as COPD and asthma. Upon review of English-language literature, under 50 cases of endobronchial lipomas were documented in the prior 10 years (2011-2021). There are no clear guidelines regarding the management of this particular entity, but typically interventional debulking is the treatment of choice. Here we present another unique case of endobronchial lipoma along with our diagnostic and therapeutic methodology. The patient underwent bronchoscopic debulking via a cryotherapy probe. Based on the histopathologic analysis, a diagnosis of endobronchial lipoma was made. Endobronchial lipomas must remain in any clinician's differential when a patient presents with dyspnea. We report the unique location of this lipoma based on our literature review and the importance of investigating endobronchial lesions due to a possible diagnosis of endobronchial lipoma.
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