Carcinoma mucoepidermoide bronquial: Reporte de caso y revisión bibliográfica / Bronchial Mucoepidermoid Carcinoma: A Case Report and Literature Review

Los tumores mucoepidermoides que asientan en la tráquea y árbol bronquial son neoplasias infrecuentes. Representan menos del 5% de las neoplasias pulmonares. Se presenta un paciente de sexo masculino, de 29 años de edad, que consultó por presentar tos con expectoración asociado a registros febriles de 8 meses de evolución, sin pérdida de peso ni hemoptisis. La TAC reveló una atelectasia del lóbulo superior izquierdo y una imagen de aspecto polipoideo de 16 mm localizada en el bronquio fuente izquierdo. En la fibrobroncoscopía se observó una tumoración polipoidea a 18 mm de la bifurcación traqueal. Se realizó una resección en manguito con anastomosis bronquial termino-terminal. El estudio anatomopatológico de la pieza informó como carcinoma mucoepidermoide bien diferenciado. El paciente presentó una buena evolución postoperatoria con un egreso hospitalario al quinto día.

Mucoepidermoid tumors of the trachea and bronchi are uncommon neoplasms, and represent less than 5% of all pulmonary neoplasms. We present a 29-year-old patientwho was referred to our hospital with complaints of cough with expectoration together with intermittent fever during 8 months without weight loss or hemoptysis. The CT scan of the chest revealed left upper lobe atelectasis and a polypoid mass in the left main bronchus with a diameter of about 16 mm. Bronchoscopy revealed a polypoidendobronchial tumor at 18 mm from tracheal bifurcation. The patient underwent a sleeve resection with bronchial anastomosis. The hystopathological analysis of post-operative material confirmed the diagnosis of a low grade, well-differentiated mucoepidermoid carcinoma. There were no complications during the post-operative period and the patient was discharged from hospital on the fifth day after surgery.

Primary Bronchial Granular Cell Tumor in an Adult Male

We report a rare case of granular cell tumor arising in the left lower lobe (LLL) bronchus with secondary obstructive change in a 60-year-old male. The patient was found to have a nodule in the LLL on a computed tomography scan, three months prior to his presentation to the Asan Medical Center. Bronchoscopic biopsies revealed a granular cell tumor. After undergoing LLL lobectomy with bronchoplasty, the patient has not experienced any tumor recurrence.

Endobronchial Metastasis from Renal Cell Carcinoma: A case report / 대한흉부외과학회지

Lung parenchyma is a common organ for metastases of extrathoracic tumors, but endobronchial metastasis is very rare. In this report, we present a case of endobronchial metastases from renal cell carcinoma (RCC), and this was managed by performing operative resection. A 63-year-old man presented with frequent dry cough; he had previously undergone left nephrectomy and postoperative chemotherapy for grade 2 RCC eight years ago. Computed tomography and bronchoscopy showed an endobronchial tumor from the left lower lobe bronchus to the second carina, and this mass was diagnosed as a necrotic tissue with chronic inflammation at biopsy. During the operation, the mass was revealed to be a metastatic renal cell carcinoma on the frozen section diagnosis and there was no mucosal invasion on the resection margin of the left lower lobe bronchus. We performed lobectomy of the left lower lobe with systemic dissection of the mediastinal lymph nodes. The final histopathologic diagnosis of the endobrochial mass was metastatic RCC and any mediastinal lymph node metastasis was not found. The patient was discharged on postoperative day 10 without any postoperative complications.

Clinical Appilication of Endobornchial Cryoablation That's Performed through Flexible Bronchoscope for Treating Tracheobronchial Ostruction / 대한흉부외과학회지

BACKGROUND: Emergency airway access is essential when a patient has dyspnea that's due to tracheal or bronchial obstruction. Such methods as laser therapy and PDT are now being used for the treatment of tracheal obstruction that's due to benign diseases or nonsurgical malignant diseases. Cryotherapy is a method that uses extreme hypothermia for freezing a tumor to cause necrosis. In this study, we have evaluated the clinical effectiveness of performing endobronchial cryoablation through a flexible bronchoscope. MATERIAL AND METHOD: 10 patients with tracheal obstruction that was due to endotracheal tumors were evaluated between May 2005 and May 2007. Eight were male and the mean age of the 10 patients was 59.4+/-18.4 years. Three cases of tracheal obstruction were due to benign tumors and 7 were due to malignant tumors. The obstruction sites were 3 at the trachea, 3 at the carina and 4 at the bronchus. A flexible bronchoscope was inserted and the tumor was eliminated using a flexible cryoprobe. Follow up bronchoscopy was performed at 1 week and 1 month after cryoablation, and then we evaluated the decrease of dyspnea, the improvement of the performance and the complications of the procedures. RESULT: Complete remission was achieved in 4 patients and partial remission was achieved in 6 patients. Complications such as hemoptysis (100%), and cough (50%) were noted. Hemoptysis was spontaneously resolved in 3 to 8 days (mean: 4.9 days). A decrease in dyspnea and improvement in the performance was noted in all patients. CONCLUSION: Endobronchial stenosis plays a detrimental role in the life quality of a terminal cancer patient. Due to its simplicity and effectiveness for controlling bleeding, endobronchial cryoablation is considered to be a safe method that is clinically applicable to a wide range of tumors, including the removal of large tumors. We concluded that endobronchial cryoablation through a flexible bronchoscope is a safe, effective method for treating tracheobroncheal obstructions.