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Abstract: A girl with vertically acquired HIV infection presented with a 6-month history of dyspnea and chest pain. Computed tomography of the thorax showed a heterogenous mass measuring 13 × 9 × 17 cm located in the anterior mediastinum. Complete surgical resection was accomplished with no complications. The final diagnosis was multilocular thymic cyst, a distinct pathologic entity that is morphologically distinguishable and unrelated to congenital thymic cyst. [Copyright &y& Elsevier]

A posterior mediastinal mass was found in a 72-year-old man who complained of progressive shortness of breath. Computed tomography of the thorax showed a well-defined, heterogenous mass measuring 9.5 × 4.0 × 3.0 cm, located in the right costovertebral angle. Complete surgical resection was accomplished through a right posterolateral thoracotomy. The final diagnosis was a leiomyomatous hamartoma of the posterior mediastinum. This is an unusual location for this type of tumor, and it has rarely been reported in the literature. [Copyright &y& Elsevier]

Pulmonary artery sarcoma is an uncommon neoplasm, and its clinical and radiological presentation usually simulates chronic thromboembolic disease. We present the case of a 77-year-old woman admitted with dyspnea, chest pain, and hemoptysis. A chest computed tomographic scan showed moderate right-sided pleural effusion and a saccular dilatation of the interlobar portion of the right pulmonary artery, which was filled with contrast and surrounded by an irregular soft-tissue attenuation mass, suggesting a ruptured pulmonary artery aneurysm. The patient was operated on. Intraoperatively, a pseudoaneurysm and a solid mass were identified within the oblique fissure around the interlobar artery. Therefore, a right pneumonectomy was performed. Definitive pathologic examination was consistent with pulmonary artery sarcoma. The patient had a good outcome and is free of disease 2 years after surgery. [Copyright &y& Elsevier]

Phyllodes tumor is a rare breast neoplasm. We present the case of a woman who underwent multiple surgical procedures for phyllodes tumor treatment. Even after bilateral mastectomy and radiotherapy, local recurrences developed. We performed a full-thickness chest wall resection with wide margins, a procedure rarely reported in medical literature for this purpose. Only after this approach did we obtain disease control, with no signs of further recurrence at 4 years’ follow-up. [Copyright &y& Elsevier]