While there is evidence that specific T cell populations can promote the growth of established
tumors, instances where T cell activity causes neoplasms to arise de novo are infrequent. …

The c‐erbB‐2 oncogene has been shown to be amplified in a variety of human adenocarcinomas.
Antibodies to the protein product, p185, have been used for immunostaining of paraffin…

: Angiosarcoma is a malignancy that occurs rarely in the gastrointestinal tract. We present a
case of a 77-year-old male who had rectal bleeding and obstructive bowel symptoms. A …

Background Goblet cell carcinoid (GCC) is a clinicopathologically distinctive tumor that
typically arises in appendix and metastasizes frequently. Although rare cases of ostensibly …

Aims Following the introduction of colorectal cancer screening programmes throughout
Canada, it became necessary to standardise the diagnosis of colorectal adenomas. Canadian …

Autoimmune pancreatitis is a chronic inflammatory disorder that is often misdiagnosed as
pancreatic cancer. Since autoimmune pancreatitis is benign and responds to steroid …

Verrucous carcinoma is a rare variant of squamous cell carcinoma, taking on a papillary or
warty appearance grossly. Histological diagnosis may be difficult because this tumour …

Anaplastic Thyroid Carcinoma (ATC) is a rare thyroid tumor with a very aggressive clinical
course. The following is a report of five patients with inoperable locally advanced disease …

Myxoid hepatic adenomas are a rare subtype of hepatic adenomas with distinctive deposition
of extracellular myxoid material between the hepatic plates. A total of 9 cases were …

Context.—Solitary rectal ulcer syndrome (SRUS) is associated with erythema and ulceration
of the rectal wall. Serrated lesions of the colon are divided into conventional hyperplastic …