We present a rare situation in which two mediastinal tumors of different topology and histology were found during the resection of an extensive mediastinal tumor in an asymptomatic patient. Different histologies within the same mass have been reported, although, to our knowledge, there have been no reports of different tumors at distinct locations. Thymomas and intrathoracic goiters account for a large proportion of the tumors found in the mediastinum. When feasible, surgical resection plays a fundamental role in effecting a cure. In order to identify concomitant lesions and perform a complete resection, detailed surgical exploration is required.

Keywords: Thymoma/complications; Mediastinal neoplasms/complications; Goite, substernal; Mediastinum/pathology; Case reports [publication type]

Human pulmonary dirofilariasis is a rare disease caused by the parasite Dirofilaria immitis. It is usually seen as a solitary pulmonary nodule that mimics lung cancer. Although this disease is considered benign, its diagnosis often requires an excisional lung biopsy. Herein we report the epidemiological, clinical and radiological features observed in seven cases of human pulmonary dirofilariasis from Florianópolis. Six of our seven patients, showed a radiological finding of pulmonary nodule and underwent excisional lung biopsy for diagnosis. In one case, the radiological image was unavailable for review. Therefore, it was not described in this work, and the diagnosis was established through transbronchial biopsy.

Keywords: Dirofilariasis. Dirofilaria immitis. Coin lesion pulmonary.