Endobronchial Lipoma: The Diagnostic Benefit of Computed Tomography Findings

On, Rintaro; Kushima, Hisako; Ishii, Hiroshi; Watanabe, Kentaro

doi:10.2169/internalmedicine.9289-17

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…At present, a chest CT and bronchoscopy are main approaches to diagnose endobronchial lipoma as the sensitivity of traditional X-ray examination is lower (66%) [ 14 , 15 ]. The diagnosis can be suggested with fat attenuation on a chest CT and the lack of enhancement after contrast administration [ 16 , 17 ], because the density of the lipoma is similar to that of normal adipose tissue, and the CT-attenuation value is between − 120 Hu and − 40 Hu. It is helpful to distinguish lipoma from other tumors by accurately measuring the CT-attenuation value of the tumor.…”

Section: Discussionmentioning

confidence: 99%

Multiple endo bronchial lipoma: a rare case report

Zhao¹,

Shui²,

Dai³

2020

BMC Pulm Med

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Background Endobronchial lipoma is an extremely rare benign tumor, which is generally located in the first three subdivisions of the tracheobronchial tree. According to the existing literature, all endobronchial lipomas are single (one per patient). Here, we report a rare case in which the patient presented with two endobronchial lipomas in the same patient, and underwent a bronchoscopic tumor resection in the left main bronchus and the left lower bronchus. Both tumors were pathologically confirmed as endobronchial lipoma. Case presentation A 52-year-old Chinese man presented at the clinic reporting a mild cough with yellow color sputum and exertional dyspnea for 2 weeks. He was a heavy smoker (45 pack-years). Chest auscultation demonstrated faint wheezing in left lower lobe. Computed tomography (CT) revealed two low-density endobronchial masses located in the middle segment of the left main bronchus and the posterior basilar segmental bronchus of the left lower lobe. The neoplasms measured a CT-attenuation value of -70HU, −98HU in density with air trapping and atelectasis in the segmental bronchus of the left lower lobe. The patient underwent interventional bronchoscopic management to remove the neoplasms by using an electrosurgical snare, cryotherapy, and electrocautery. The locations of the neoplasms were confirmed at the left main bronchus and the superior segment of the left lower lobe during bronchoscopic intervention. Histopathological examination confirmed that both tissues were consistent with lipomas. After 18 months of follow-up, the patient was free of symptoms and CT revealed that bronchiectasia remained in the superior segment of the left lower lobe; however, no mass lesion was present in the left bronchus. Conclusions This case suggests that an endobronchial lipoma can present as multiple lesions, and both proximal and distal types can simultaneously occur in the same patient. Thus, these findings help us further understand the biology of endobronchial lipomas.

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Section: Discussionmentioning

confidence: 99%

Multiple endo bronchial lipoma: a rare case report

Zhao¹,

Shui²,

Dai³

2020

BMC Pulm Med

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“…Patients usually are misdiagnosed as having asthma or bronchitis and receive treatment for those conditions. On CT, the fat density of the endobronchial tumor, which indicates that it is composed of adipose tissue, is usually diagnostic of lipoma [4]. A multidisciplinary approach is crucial for successful management.…”

Section: Discussionmentioning

confidence: 99%

A Bronchial Lipoma: Occurrence at an Unusual Site and Its Successful Bronchoscopic Resection with an Electrosurgical Snare

Jadhav

Sanagar

Shaha

et al. 2020

Korean J Thorac Cardiovasc Surg

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Primary tracheobronchial lipoma is an extremely rare entity, the diagnosis of which is often missed initially. Cases are generally diagnosed late after initial treatment for asthma and bronchitis. We report a case of a 42-year-old man with a left main bronchus lipoma that caused near-total obstruction. The lipoma was treated by bronchoscopic resection with an electrosurgical snare and cryoablation.

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“…Presenting complaints and physical examination findings can be nonspecific, cross-sectional imaging modalities such as a CT chest can help decisions about further management strategies (14). Conventional radiography is often nonspecific and shows post-obstructive changes such as atelectasis, pneumonia and bronchiectasis (15,16). Multidetector CT (MDCT) scan with isotropic resolution and thin slice thickness is the imaging modality of choice.…”

Section: Discussionmentioning

confidence: 99%

Meta-analysis of a master mimicker: endobronchial lipoma

et al. 2020

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Background: Endobronchial lipomas (ELs) are extremely rare benign tumors that account for 0.1-0.4% of all bronchial tumors. Our study aims to better characterize these lesions based on their baseline demographic characteristics, size, location, association with smoking and establish a treatment modality of choice for such tumors. Methods:We conducted a retrospective meta-analysis of 29 studies of EL reported from 1994 till present.These 29 studies yielded 36 patient encounters which were included in our study. Categorical outcomes were compared between study groups using chi-square test. P value <0.05 was considered statistically significant.Results: Our study has shown that smaller lesions more likely to be ELs or benign lung tumors. Eighty percent of ELs had a size <1.5 cm (P=0.056) and the other tumor types had a size ≥1.5 cm.Conclusions: These tumors are difficult to diagnose due to their nonspecific presenting complaints unless pulmonologists maintain a high index of suspicion. Treatment options such surgical resection (SR) or bronchoscopic resection (BR) are available and interventions should be planned on a case-by-case basis by a multidisciplinary team.

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Endobronchial Lipoma: The Diagnostic Benefit of Computed Tomography Findings

Cited by 8 publications

References 2 publications

Multiple endo bronchial lipoma: a rare case report

Multiple endo bronchial lipoma: a rare case report

A Bronchial Lipoma: Occurrence at an Unusual Site and Its Successful Bronchoscopic Resection with an Electrosurgical Snare

Meta-analysis of a master mimicker: endobronchial lipoma

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