BACKGROUND Metastatic breast carcinoids are rare neoplasms. They can be mistaken for primary breast carcinoma both clinically and radiologically, even with known history of carcinoid tumor elsewhere in the body. CASE PRESENTATION We report a case of unilateral breast metastasis from carcinoid tumor of the small intestine in a 52-year-old woman who was successfully treated by lumpectomy and ra...

Introduction. Colonic metastasis following curative surgery for renal cell carcinoma has rarely been described in the literature. Case Presentation. We present a case of a 64-year-old man who previously had a left nephrectomy for renal cell carcinoma. Five months post-operatively the patient presented with microscopic intestinal bleeding and anemia. Colonoscopic surveillance revealed a metastat...

Small cell carcinomas are most frequently localised within the lung, however, they also may be detected at extrapulmonary sites such as the gastrointestinal tract and the genitourinary tract. The confirmation of a small cell carcinoma outside of the lung may not necessarily indicate the presence of a metastasis, however, it also may represent the primary tumor itself. We present the case of a p...

症例は69歳，男性．約1年前に他院で左前胸部脂肪肉腫に対して広範囲切除術を施行され，外来経過観察中であった．食思不振，間欠的な心窩部痛を主訴に当院を受診した．腹部単純CTでは，上行結腸肝弯曲部近傍に至る回腸の重積像を指摘された．先進部には腫瘍性病変の存在が疑われ，腹痛も高度であったため緊急手術の方針となり，腹腔鏡下回盲部切除術を施行した．摘出標本では，Bauhin弁より20cm口側に3cm大の隆起性病変を認め，同部位を先進部とした腸重積であった．術後経過は良好で，術後10日目に退院となった．病理学的には左前胸部脂肪肉腫と同様の組織像を呈し，同部位からの転移性病変と診断された．脂肪肉腫の小腸転移は少なく，さらに腸重積を生じる症例は稀であるため文献的考察を加え報告する．

BACKGROUND CDX2 is a gene involved in the regulation of intestinal cell proliferation/differentiation. It is considered specific for enterocytes and has been used for the diagnosis of primary and metastatic colon adenocarcinoma. The aim of this study was to assess the usefulness of CDX2 in the diagnosis of cutaneous metastatic tumors and extramammary Paget's disease. MATERIALS AND METHODS The...

Intestinal intussusception in adults is a rare medical condition accounting for less than 5% of all intussusceptions. Herein we present a 45-year-old patient with a history of abdominal pain and loss of weight. CT scan revealed jejunojejunal intussusceptions. The patient was subjected to exploratory operation and small intestine resection due to a mass causing intestinal intussusception. Pathol...

Entamoeba histolytica infection may have various clinical manifestations. Nine out of ten E. histolytica infections remain asymptomatic, while the remainder become invasive and cause disease. The most common form of invasive infection is amebic diarrhea and colitis, whereas the most common extra-intestinal disease is amebic liver abscess. The underlying reasons for the different outcomes are un...