Palinacousis after Cerebral Venous Thrombosis in the Temporoparietal Lobe

Palinacousis is a rare auditory phenomenon characterized by the persistence of sounds beyond their actual duration. It has been associated with various brain conditions such as stroke, tumor, and seizure in the temporoparietal lobe. We present a case report of a 43-yearold man who developed palinacousis following cerebral venous thrombosis and seizure with lesions including the left auditory cortex. This case highlights the intriguing relationship between cerebral venous infarction, seizure, and the development of palinacousis in specific brain regions.

Torus Hyperplasia of the Pyloric Antrum

Primary or idiopathic hypertrophy of the pyloric muscle in adult, so called torus hyperplasia, is an infrequent but an established entity. It is caused by a circular muscle hypertrophy affecting the lesser curvature near the pylorus. Since most of the lesions are difficult to differentiate from tumor, distal gastrectomy is usually preformed to rule out most causes of pyloric lesions including neoplastic ones through a pathological study. A 56-yr-old man with a family history of gastric cancer presented with abdominal discomfort of 1 month duration. Upper gastrointestinal endoscopy showed a 1.0 cm sized irregular submucosal lesion proximal to the pylorus to the distal antrum on the lesser curvature. On colonoscopy examination, a 1.5 cm sized protruding mass was noticed on the appendiceal orifice. Gastrectomy and cecectomy were done, and histological section revealed marked hypertrophy of the distal circular pyloric musculature and an appendiceal mucocele. To the best of our knowledge, this is the first case of torus hyperplasia with appendiceal mucocele which is found incidentally.

A Case of Colon Cancer Coexisting with Colonic Tuberculosis and This Presented as Bowel Perforation / 대한소화기내시경학회지

Tuberculosis can involve any part of the body and there are case reports of tuberculosis coexisting with malignancy in most body organs. However, cases of intestinal tuberculosis associated with colon cancer have rarely reported. Inflammatory bowel diseases can progress to malignant diseases due to mucosal dysplastic change. Similarly, intestinal tuberculosis can cause chronic inflammation, but the exact relationship between intestinal tuberculosis and colon cancer is currently obscure. A 71-year-old woman visited our hospital because of abrupt right lower abdominal pain that progressed to rebound tenderness and abdominal rigidity. Abdominal computed tomography showed a polypoid mass in the cecum and a distended terminal ileum. Right hemicolectomy was performed and the surgical specimen revealed extremely well differentiated adenocarcinoma combined with intestinal tuberculosis and bowel perforation in the cecum. We report here on a rare case of colon cancer coexisting with colonic tuberculosis and this presented as bowel perforation. We also include a review of the relevant literature.

Cecal Polypoid Arteriovenous Malformations Removed by Endoscopic Biopsy

Colonic arteriovenous malformation (AVM) is one of the causes of lower gastrointestinal bleeding. Unlike small vascular ectasia or angiodysplasia, colonic AVM tends to be solitary, large in size, and identified endoscopically as flat or elevated bright red lesion. Herein, we report a case of non-solitary and small cecal AVMs which were removed by endoscopic biopsy. A 66-yr-old woman was referred for routine gastrointestinal cancer screening. She was suffering from diabetes, hypertension, end-stage renal disease, and anemia of chronic disease. On colonoscopic finding, three semi-pedunculated polyps, less than 5 mm in size, were noticed near to the appendiceal orifice. Since the lesions revealed normal-looking epithelium with converging folds on the cecal base, lesions were diagnosed as inflammatory polyps on gross finding. Three biopsies were taken from each lesion. Bleeding from the biopsied site ceased spontaneously. Histopathologic evaluation demonstrated intramucosal hemorrhage and dilated submucosal vessels which were consistent with polypoid colonic AVMs.

Paroxysmal Horizontal Diplopia Related to Brainstem Lesion

Paroxysmal diplopia and dysarthria-ataxia have been reported in multiple sclerosis, stroke and Behcet's disease. We present a case of 25-year-old man with multiple brain lesions, who developed paroxysmal horizontal dysconjugate eyeball deviation, dysarthria and ataxia. Subtraction ictal SPECT co-registered to MR images demonstrated hyperperfusion in the brainstem and cerebellum during the paroxysms.

Delayed-onset Wernicke Encephalopathy in a Patient with Gastrectomy

A 62-year-old man was transferred to our emergency room because of acute encephalopathy. He was a nondrinker with history of a gastrectomy nineteen years ago. Two weeks before his visit, he had experienced transient poor oral intake due to gastroesophageal reflux (GER). His brain MRI showed definite lesions compatible with Wernicke Encephalopathy (WE). A trivial event like GER can complicate the marginal equilibrium of thiamine and, after a long latent interval following a gastrectomy, may induce delayed-onset WE.