A Case of Multicentric Duodenal Carcinoid / 대한소화기내시경학회지

Carcinoid tumors are the most common endocrine tumors of gastrointestinal tract. Argentaffin cells are the origin of carcinoids. These cells belong to the amino precursor uptake and decarboxylation (APUD) system. These cells give the tumor its most distinguishing feature: the ability to produce biogenic amines and polypeptide hormones that, in turn, give rise to the dramatic carcinoid syndrome. We treated a case of multi-centric carcinoid tumor of the duodenum in a 63-year-old male patient. He was admitted to the hospital because of epigastric pain. On the gastrofiberscopic examination, 1.0 x1.5 cm and 0.7 x0.8 cm sized two polyps (Yamada type II, I) were noticed on the duodenal bulb. The biopsy specimen showed carcinoid tumors of different histologic types. The level of 24-hour urine 5-HIAA of this case was normal. He was treated with subtotal gastrectomy with Billroth-II anastomosis. We report this case with literature review.

Two cases of upper airway obstruction masquerading as asthma: One tracheal adenoid cystic carcinoma, the other foreign body aspiration / 천식및알레르기

Reversible airway obstruction and wheezing are typical features of bronchial asthma, but these features may also be observed in other conditions. However, the inclusion of these conditions in the differential diagnosis of asthma-like symptoms in adults is often neglected, resulting in a correct diagnosis being made after months of unsuccessful treatment for asthma. We report two cases of an upper airway obstruction masquerading as asthma. In case one, adenoid cystic carcinoma was identified in the trachea of a patient showing asthma-like symptoms, positive response to allergic skin test and methacholine inhalation challenge. In the other case, aspirated foreign body was misdiagnosed and treated as asthma for more than one year. A high degree of suspicion and a thorough medical evaluation censisting of history, physical examination and pulmonary function test including shapes of spirogram are essential to the differential diagnosis of asthma-like symptoms

A Case of Mesenteric Fibromatosis after Appendectomy / 대한내과학회지

Mesenteric fibromatosis is a rare nonmetastasizing fi brous tumor, characterized by fibroblastic proliferation without evidence of inflammatory response or definite neoplasia. It appears at any age, but mainly in the second to fifth decades as incidence of two to four desmoid tu mor cases per 1 million people per annum. It is pseudoen capsulated and locally invasive and has a tendency to recur, but metastases are rare. It is more frequent with Gardner's syndrome(adenomatosis coli) in which 50% of them will appear as mesenteric fibromatosis. Trauma, especially that of previous surgery, has been associated with the subsequent development of desmoid tumor. The treatment of choice is a wide margin resection of the tumor. we experienced a case of mesenteric fibromatosis without Gardner's syndrome 2 years after appendectomy in a 31-year old man and recurred at 21 months after resection and report with a review of literatures. 6

Radiologic Findings of lymphoproliferative Disorders of the Lung

Lymphoproliferative disorders of the lung consist of a spectrum of several entities from malignant lymphoma to variable non-lymphomatous lymphoproliferative disorders. While an entity may be histologically benign and can be cured without treatment or by surgical removal, malignancy may evolve, and aggressive treatment may thus be required. Radiographic and pathologic findings of an entity may overlap, but differential diagnosis of lymphoproliferative disorders of the lung is nonetheless important. In this paper we illustrate a variety of lymphoproliferative diseases of the lung that have been pathologically proven during the last ten years, and discuss their radiographic and pathologic characteristics.