Primary leiomyoma of the lung: an exceptional localization

Abstract

Leiomyoma is a benign smooth muscle tumor usually encountered in the uterus. Primary pulmonary localization is extremely rare in adults and children. However, it must be included in the differential diagnosis of any nodular lung lesion. Its treatment is surgical, with good long-term results. Here, we report a case of leiomyoma of lung parenchyma diagnosed in a 26-year-old man.

leiomyoma beyond uterus

“…Diagnosis of leiomyoma cannot be made solely based on radiology since there are no pathognomonic features 10 . Usually it presents as solitary mass,if it is endobronchial it can present as atelectasis,obstructive pneumonia,hyperlucency due to distal air trapping.Fiberoptic Bronchoscopy is used to visualize endobronchial lesion but the extent of extraluminal involvement and airway distal to obstruction cannot be visualized, hence virtual bronchoscopy and 3D airway reconstruction helps to overcome this limitation 11 .Histopathologic examination shows disorganized smooth muscle with vasculature or fibrous component 12 .Immunohistochemistry shows positivity to smooth muscle actin(SMA) and desmin which helps to differentiate it from fibroma, neurofibromas and schwannoma.There are no standard treatment guidelines.Usually endobronchial lesion are treated with electrocautery,laser photocoagulation 13 .If there is a parenchymal lesion depending upon the size and location segmentectomy,lobectomy and pneumonectomy is being done 14 .Our patient underwent electrocautery snare resection of tumor.Post procedure followup chest Xray became normal.Patient was followed up with FDG PET with no residual tumor activity in lung and elsewhere in the body.…”

Sterile Bronchopleural Fistula Following Surgical Removal of Primary Lung Leiomyoma Inducing Secondary Hypertrophic Osteoarthropathy

“…The presentation of lung leiomyomas depends on their location, size, and degree of obstruction distal to the tumor [ 1 , 8 , 10 , 11 ]. Despite the considerable variability in the presentation of lung leiomyomas, not all of them are necessarily symptomatic.…”

Leiomioma pulmonar primario

“…El tratamiento de elección para el leiomioma pulmonar es la resección quirúrgica y la técnica depende de la ubicación y el tamaño de la lesión. Las lesiones traqueobronquiales de tamaños pequeños pueden resecarse mediante bronquiectomía, resección segmentaria, láser endoscópico o electrocauterización, especialmente en pacientes de alto riesgo quirúrgico 17 . Sin embargo, una resección parenquimatosa extensa puede ser necesaria en caso de destrucción del parénquima.…”