Osteoclastic giant cell tumor of the pancreas. An immunohistological study and review of the literature.

A case of an osteoclastic giant cell tumor of the pancreas is presented. The different surgical specimens during the forty months of observation suggest that the histological feature of the tumor has changed. Although immunohistological studies were performed, the histogenesis remains obscure.

[Eight years experience with the "Erlangen Model" titanium prosthesis--results of cementless implantation of 250 hip prostheses].

Between March 13, 1984 and March 28, 1988, 233 patients (age range from 21 to 73 years) with osteoarthritis of one or both hips were treated with the uncemented hip replacement "Erlanger Modell" (Prof. H. Beck/P.

Carcinosarcoma in Barrett's oesophagus: a case report with immunohistological examination.

A case of a carcinosarcoma which developed in a Barrett's oesophagus is presented. The tumour consisted of an adenocarcinoma and a spindle cell sarcoma. Immunohistological examinations demonstrated vimentin positivity in the sarcomatous portion with a negative reaction for keratin.

Verrucous carcinoma of the esophagus.

The special problems involving the histopathology of verrucous carcinoma of the esophagus are presented on the basis of two patients with this tumor seen at our department. The discussion centers on the question whether a verrucous carcinoma of the esophagus can infiltrate the basal membrane and give rise to metastases.