Dawn M. Butterworth

Learn More
This retrospective study examined the notes of 82 patients who underwent an attempted curative resection of oro-pharyngeal carcinoma, and who had frozen sections taken, over a four year period. Three hundred and fifty mucosal, 179 deep tissue, and 22 nerve frozen sections had been taken. Concordance between cryostat and paraffin sections was 99.5% although(More)
Primary malignant mesenchymal tumors of the liver are extremely rare. We report a case of a primary liposarcoma in the right hepatic lobe of a 50-year-old man. Sonography showed a poorly defined, lobulated, infiltrating echogenic tumor with shadowing. Within the tumor were hyperechoic and hypoechoic foci thought to represent areas of hemorrhage and(More)
Salivary duct carcinoma is a rare primary tumour of the salivary glands arising most frequently in the parotid gland. It has a male preponderance and occurs most often in patients over the age of 50 years. Its distinctive histological features include dilated ducts containing cells arranged in cribriform, papillary or solid patterns often with central(More)
We have observed an unusual change in the epididymal tubules, ranging from focal epithelial proliferation forming bridges, to a pronounced intra-tubular cribriform pattern of the epithelium. This often occurs in association with adenomatous hyperplasia of the rete testis which is an uncommon, usually incidental finding. Both processes appear associated with(More)
A case of lethal invasive mucormycosis (IM), a rare fungal infection which predominantly affects immunocompromised patients, is reported in a 73-year-old female patient who presented with a cervical abscess. The patient had asthma treated with steroids and had previously undiagnosed diabetes mellitus. Despite surgical treatment and parenteral antibiotic(More)
Mesonephric type adenocarcinoma is a very rare tumour in the bladder and bears a resemblance to nephrogenic adenoma. We report (to the best of our knowledge), the first case where the tumour was partly composed of mesonephric and partly of poorly differentiated transitional cell carcinoma. Staining for alpha 1-antitrypsin and carcino-embryonic antigen were(More)
The DNA status of 12 rectal biopsies, taken during the investigation of radiation proctitis, was investigated. Of these six were in the acute phase and six in the chronic phase. All of the acute biopsies had diploid DNA, despite bizarre histological epithelial cell appearances. Two of the chronic phase biopsies were to have aneuploid DNA profiles. This(More)