The changing radiographic presentation of
bronchogenic carcinoma with reference to cell type.
Bronchogenic cysts are typically located in the precarinal and subcarinal regions (Figure 12) but may occur in any part of the mediastinum and even be intrapulmonary (20%).
Although it is a distinctly different entity on a pathological level, the management of the Mullerian cyst is similar to the more commonly encountered
bronchogenic and neurogenic masses in that resection is recommended due to potential for late malignant transformation.
Single cysts located in the posterior mediastinum encompass derivatives of the primitive foregut (enteric,
bronchogenic, and esophageal duplication) and, occasionally, atypically located pericardial cysts.
8] In a retrospective study from United States, acute bronchitis was the most common cause of hemoptysis, followed by
bronchogenic carcinoma.
Thereby, the patient was finally diagnosed to have SVC syndrome due to thrombosis as a paraneoplastic syndrome in
bronchogenic carcinoma.
1 They can be classified into one of the three categories:
bronchogenic, intramural oesophageal or enteric.
Differential diagnoses are numerous, including cystic lymphangioma, mucinous cystadenoma, cystic teratoma, cystic mesothelioma, mullerian cyst, epidermoid cyst, tailgut cyst,
bronchogenic cyst, cystic changes in a solid neoplasm, pseudomyxoma retroperitoneal, perianal mucinous carcinoma, pancreatic pseudocyst, lymphocele, urinoma, hematoma, cystadenoma of mesonephric origin, and cavernous hemangioma Dinesh [8].
Other abnormalities were pulmonary sequestrations (n=2), hemivertebra (n=2),
bronchogenic cyst (n=1), haemangioma (n=1), duodenal atresia (n=1) and ventricular rhabdomyoma (n=1).
7,8) Whenever a mediastinal mass is suspected, a CT scan should be done to delineate posterior mediastinal lesions and to distinguish between the esophageal or
bronchogenic origin of the cyst.
It is currently used in 50-70% of all cancer patients showing good activity against testicular, ovarian, oropharyngeal,
bronchogenic, cervical and bladder carcinomas, lymphoma, osteosarcoma, melanoma and neuroblastoma [2].
The radiologic margins can be irregular and spiculated, reinforcing the potential confusion with primary
bronchogenic carcinoma.
