Case report: metastases from thyroid and nasopharyngeal carcinomas in the same lymph node following chemotherapy for mantle cell lymphoma.

We report a case of metastatic papillary thyroid carcinoma and undifferentiated nonkeratinizing nasopharyngeal carcinoma to the same cervical lymph node following chemotherapy for mantle cell lymphoma. Total thyroidectomy, right cervical nodal dissection, radioactive iodine-131 therapy and radiotherapy to the nasopharynx and the neck resulted in remission of both tumors. No recurrence was noted in follow-up for 48 months.

[Pulmonary epithelioid hemangioendothelioma: a clinicopathological analysis].

Objective: To report 3 cases of pulmonary epithelioid haemangioendothelioma (PEH) and therefore to improve the understanding of this tumor.

Methods: The clinical pathological features of 3 cases of PEH were described and related literatures were reviewed.

Results: The etiology of this rare disease remained unknown.

Primary malignant bone neoplasm: a case report of dedifferentiated chondrosarcoma in the rib and review of the literature.

Dedifferentiated chondrosarcoma (DDCS) is a rare but highly malignant primary bone neoplasm, which is resistant to radiotherapy and chemotherapy. There remains uncertainly as to the best treatment of this disease and how to improve its prognosis. In this paper we reported a case of DDCS and reviewed the related literatures in order to provide references to throw a light on the histogenesis, diagnosis and therapy of this disease.

[Pathological and ultramicrostructural changes of tissues in a patient with severe acute respiratory syndrome].

Objective: To study the morphological, ultramicrostructural and pathological changes of tissues from a patient with severe acute respiratory syndrome (SARS).

Methods: One autopsy case of diagnosed SARS was investigated. Lung puncture was performed immediately after the patient died, and the autopsy was done after 12 h.