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Biomedical subjects

D C Dahlin

Publications and source records attributed to D C Dahlin.

143 records · Page 8Linked to original sources
PubMedDate not supplied

Benign chondroblastoma of the temporal bone.

Benign chondroblastoma is a rare tumor in the temporal bone. It occurs preponderantly in middle-aged men as a mass in the postero-superior region of the ear canal and is accompanied by hearing loss. On pathologic examination, giant cells and focal regions of chondroid differentiation are noted. After the extent of the tumor has been determined, the treatment is surgical removal. Preoperative irradiation may be helpful. Long-term follow-up is essential.

Adult↗
PubMedDate not supplied

The problems in assessment of new treatment regimens of osteosarcoma.

The locations of the tumors that have been treated must be known if one is to sensibly assess the validity of therapeutic modalities. How the presence of metastases was excluded must be given, because patients without known metastases constitute the usual group of greatest interest. An indication of the validity of any series relates to the number of patients studied. Survivorship data based on projected five-year results should be assessed cautiously. Accuracy of the pathologic diagnosis is mandatory. Subtypes of osteosarcoma with behavior known to be different from the ordinary must be excluded. Specific details as to how the series was selected for study are necessary. It is impossible to assess accurately any published series unless the information specified in the foregoing is provided.

Bone Neoplasms↗