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Vol.51 No.7 contents | Japanese/English |
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- Case Report -
A Case of Solitary Bronchial Papilloma of Mixed Squamous Cell and Glandular Type Resected Endoscopically Using an Electrosurgical Snare and Diode Laser
Nobukazu Tomichi1, Sadahide Ono1, Hiroshi Yaegashi1, Yoshiaki Mori2, Kenji Ube2, Tomomi Sasajima21Department of Pathology, 2Department of Respiratory Medicine, Iwate Prefectural Central Hospital, Japan
Background. Solitary bronchial papilloma is a relatively rare benign tumor, and mixed squamous cell and glandular papilloma is an extremely rare subtype with only 13 cases, including the present case in the literature. Surgical resection is the usual treatment of choice for solitary bronchial papilloma. Case. An 84-year-old woman presented with an abnormal shadow in the right middle lung field detected on a chest X-ray film on an annual check up. A chest CT scan showed partial atelectasis of the right S3 and a protruding tumor shadow in the right main bronchus. A bronchoscopic examination revealed a polypoid tumor in the truncus intermedius, and a biopsy specimen yielded a histological diagnosis of mixed papilloma. The patient underwent endoscopy using an electrosurgical snare and diode laser, because malignant change in the papilloma could not be excluded. The histopathological diagnosis of the resected tumor was a solitary bronchial papilloma of mixed squamous cell and glandular type but without any malignant component. Immunohistochemically, the squamous epithelium was negative for the human papilloma virus (types 6, 11, 18). No recurrence of the tumor has been detected 2.5 years after endoscopic resection. Conclusion. We report a case of solitary bronchial papilloma of mixed squamous cell and glandular type resected by endoscopy. Endoscopy using an electrosurgical snare and diode laser is useful treatment for solitary bronchial papilloma.
key words: Solitary bronchial papilloma, Mixed squamous cell and glandular papilloma, Endoscopic treatment, Human papilloma virus (HPV)
Received: August 5, 2011
Accepted: October 24, 2011
JJLC 51 (7): 803-808, 2011
