Synchronous or metachronous occurrence of gastrointestinal stromal tumors (GISTs) and other primary gastrointestinal neoplasms has previously been reported. However, to the best of our knowledge, there are few studies regarding metachronous multiple GISTs and adenocarcinoma of the colon. The current case of an 80-year-old male patient who underwent a laparoscopic right hemicolectomy for colonic...

INTRODUCTION Macroscopic tumor thrombi occupying the main portal branch are rarely seen in patients with liver metastasis. CASE PRESENTATION A 55-year-old Japanese man who had previously undergone surgery for adenocarcinoma of the ascending colon presented with a metastatic liver tumor accompanied by a macroscopic tumor thrombus in the right portal branch. Right lobectomy and removal of the t...

We report a patient with supraclavicular lymph node metastasis from an undetectable adenocarcinoma of the transverse colon, who presented with cough and was diagnosed with typhoid fever, bronchitis as well as liver metastasis. There were an abdominal fullness, weight loss, constipation, pencil-like stool with mucous and blood, low-grade fever, bone ache, and tea-color urine. The first colonosco...

A 47-year-old man presented with intussusception of the colon and was found to have a large tubulo-villous adenoma high grade dysplasia, transforming into adenocarcinoma. The bowel adjacent polyp showed florid vascualr proliferation, mimicking vascular neoplasm. However, there were no signs atypia or malignancy in lesion. We illustrate an example chronic obstruction inducing hypoxia, leading ne...

There are few descriptions of association between chagasic megacolon and colon cancer. We report a case of obstructive abdomen caused by adenocarcinoma of the left colon in chagasic megacolon. A review of the literature revealed 8 cases of this association and, analyzing together the series of findings of cancer in chagasic organomegalies, we found a frequency of 4.8% in megaesophagus and 0.1% ...

were palpated and contained numerous hard nodules. The sigmoid colon was resected with its mesentery and lymph nodes, reconstruction was by end-to-end anastomosis with an intubated caecostomy to decompress the proximal colon. Histology of the tumour showed a well differentiated adenocarcinoma. One mesenteric lymph node contained tumour, three others examined did not. Postoperative liver function

Leucine and methionine enkephalins were measured by biological assay in normal colon, adenocarcinoma of the colon, carcinoma of the caecum, and in normal and inflamed appendix. Methionine enkephalin levels in both the adenocarcinomas and inflamed appendices were significantly higher than in normal controls. No significant change occurred in leucine enkephalin levels. The caecal tumours were ana...

The metabolism is reprogrammed in cancer cells to meet the requirement of their malignant properties. Some specific metabolites can contribute transformation different types. This study aimed determine level glucose, pyruvate, lactate, citrate, alpha-ketoglutarate (α-KG), 2-hydroxyglutarate (2-HG), succinate, fumarate, malate, and oxaloacetate tissues (tumor, colon, brain, liver) xenograft mode...

Gastrointestinal endometriosis-associated malignancies are rare and diagnostically challenging. Mullerian endometrioid adenocarcinoma is the most common and likely to be confused with a primary colonic adenocarcinoma due to their overlapping histological features. We present a case of mullerian endometrioid adenocarcinoma arising from colonic endometriosis in a 61year-old woman who presented wi...

Adenocarcinoma with osteoblastic metastases is classically seen in prostate, breast, and lung primaries. Less common primary sites include thyroid, kidney, and stomach. We present two cases of primary gastrointestinal adenocarcinoma with metastatic osteoblastic activity from two previously unreported sites. The first case represents an esophageal adenocarcinoma arising in a background of intest...