Malignant pleural mesothelioma with heterologous elements.

Aims: Malignant pleural mesothelioma with heterologous elements (such as osseous, cartilaginous or rhabdomyoblastic differentiation) is very rare. We tried to differentiate such mesothelioma cases from extraskeletal pleural osteosarcoma, which is very challenging.

Methods: We compared 10 malignant pleural mesotheliomas (three biphasic and seven sarcomatoid types) with two pleural osteosarcomas using clinicopathological and immunohistochemical methods, and also fluorescence in situ hybridisation (FISH) to examine for homozygous deletion of p16.

[A case of lung adenocarcinoma with postoperative recurrence maintaining complete remission by treatment with gefitinib].

A 78-year-old woman without a smoking history was admitted to our hospital because of a tumor 4 cm in diameter found in her right lung at a cataract preoperative inspection check in May 2005. Her serum CEA level was 72. 4 ng/mL.

[A case of advanced non-small-cell lung cancer successfully treated with S-1 plus CBDCA after multiple chemotherapy].

A 51-year-old man consulted our hospital with complaints of a headache and spasm of the left upper limbs in January 2007. He was diagnosed as left lung adenocarcinoma (c-T2N0M1, stage IV). His serum CEA level was 104.

Thymic and pulmonary mucosa-associated lymphoid tissue lymphomas in a patient with Sjögren's syndrome and literature review.

Mucosa-associated lymphoid tissue lymphoma (MALToma) has been reported in several organs. Among MALTomas, thymic and pulmonary MALTomas are rare. The present report describes a patient with Sjögren's syndrome who presented thymic and pulmonary MALTomas.