Meningeal carcinomatosis as the initial clinical manifestation of a tumor is a very rare event and difficult to make diagnosis. Lumbar puncture is a single and useful diagnostic method, and meticulous cytologic study of cerebrospinal fluid specimen is needed for correct diagnosis. A case of meningeal carcinomatosis diagnosed by cytologic study of CSF and later confirmed primary carcinoma of the stomach by, fiberscopic biopsy is briefly presented. Meningeal signs and symptoms were the primary clinical manifestation in case.
Biopsy ; Stomach Neoplasms

Lipoma involving brain and spinal cord is a rare tumor that most commonly located in the midsagittal region. This lesion is usually asymptomatic and has been reported incidentally at postmortem examination. Recently, the CT scan establishes the diagnosis of intracranial lipoma on the basis of typical X-ray absorption and location. The authors experienced a case of intracranial lipoma of occipital lobes. The patient was 7 months-old male who had protruding mass on the occipital region after birth. The mass revealed an uncapsulated lipoma with foca cartilage formation. We report this case with brief review of literatures.
Male ; Humans

Porencephaly is a rare congenital anomaly characterized by a cavitary hole extending from the cerebral mantle to the ventricle of the brain and covered by leptomeningeal membrane. It is now generally believed that the porencephaly represents a fetal or neonatal destructive process of the neural tissue. Authors experienced an autopsy case of bilateral porencephaly in a 35-day-old Korean male infant who died of sepsis. The brain weighed 150 gms and morphologically well formed except for two large symmetric defects at the fronto-parietal region. These defects were characterized by cleft-like shape, covering the entire cerebral mantle with resultant direct communication between ventricular cavity and leptomeninges. Thin leptomeningeal trabeculae were covering the cavity. There was a smooth transition between ependyma and roof of the defects. There are focal, microscopic cerebral infarct and abscess without connection with the cavitary lesion. The remaining central nervous system was unremarkable.
Infant ; Male ; Female ; Infant, Newborn ; Humans

A case of extrastkeletal Ewing's sarcoma on lower extremity in a 60-year-old male is reported. Extraskeletal Ewing's sarcoma is a rare malignant neoplasm that shows similar histologic and ultrastructural features to Ewing's sarcoma of bone. Histologically, the neoplasm was composed of small, round to oval cells with scant cytoplasm that were arranged in sheets with large area of necrosis. Electron microscopy of the neoplastic cells revaled scant cytopasm containing glycogen rosettes and a paucity of organelles. There is no ultrastructural evidence to indicate the origin of the cells.
Male ; Humans

Nodular fasciitis is a rare and benign soft tissue tumor that can easily confused microscopically to spindle cell sarcoma. Therefore it is very important disease to the surgical pathologists. However, this lesion has been seldom reported or described in Korean literature. This paper deals with 13 Korean cases of nodular fasciitis diagnosed microscopically. It's pertinent clinicopathologic findings are described. The youngest patients among 13 cases was 18 years and the oldest was 63 years with the mean of 34 years. Nine were males and 4 were females. Pathologically, the size of the lesion at the time of diagnosis ranged from 0.7 cm to 4.0 cm in the maximum extent. Two were smaller than 1.0 cm and 8 cases were between 1.0~3.0 cm. The site distibution was; trunk(5) upper extremitiy (4), lower extremity (2) and head (2). All the lesions were located in the subcutaneous tissue. The history of recent rapid growth was noted in nearly half of the cases. Mass and tenderness were two common manifestations. In one case, multiple nodules were found in the right breast and in flank. All of the lesions except one were managed by local excision. In one case, a wide excision was done under the impression of malignant fibrous histiocytoma of frozen section. Follow up observation of all cases did not show any evidence of recurrence in all.
Female ; Male ; Humans

The clear hidradenoma, generally regarded as an eccrine sweat gland origin, is an uncommon tumor and occurs as a slowly growing, usually solitary nodule. The histologic patterns varies from one tumor to another and in different parts of the same tumor. The histologically variable patterns, therefore, are expressed in various names, including nodular hidradenoma, eccrine acrospiroma, squamous poroadenoma, and solid cystic hidradenoma. During the past 16 years the authors experienced 5 cases of clear cell hidradenoma which were diagnosed by the histopathological examination of the tumor mass removed by surgical excision. Clinical and pathological features were reviewed and the following results were obtained. 1) The mean age was 34 years with a range from 27 to 45 years. Three were male and two female. 2) The chiefr complaint was intradermal or subcutaneous nodules for a period of several years to 15 years. All cases occured as a solitary nodule without a distinct predilection for certain sites. A nodule which situated in the dermis and was accompanied by superficial ulceration was elevated above the skin surface in one case. 3) Grossly, the tumors were relatively well circumscribed and composed of multiloblated masses in 4 cases. They ranged in size between 1.5 and 3.5 cm. 4) Microscopically, all cases disclosed lobulated solid masses separated by varying amounts of collagenous connective tissue. There were often cystic spaces, which were lined by a single row of cuboidal cells in four cases and were bordered by tumor cells in remaining one case. These cysts contained a faintly eosinophilic homogeneous material. On solid portions of the tumor there were two types of cells (clear cell and polygonal cell), the proportions of which varied from tumor to tumor in three cases. The remaining two cases were predominantly composed of clear cells. Tubular lumina which were lined by cuboidal or columnar ductal cells were found in two cases. Areas of squamous differentiation and squamous eddies were seen in one case. Intracytolasmic PAS-positive materials were shown in all cases, but diastase-resistant PAS materials in two cases.
Female ; Male ; Humans ; Cysts

Malignant mixed mesodermal tumor (MMMT) of the ovary is endometrioid tumor containing epithelial and mesenchymal components. The mesenchymal component may be homologous, in which case the term carcinosarcoma is often used, or heterologous, containing cartilage, striated muscle, osteoid, bone, or fat, or combination of these elements. MMMT usually afflicts the postmenopausal woman and occurs more often in the nulliparous female. The disease is usually advanced (stage III) when diagnosed. Cliniopathologic data were presented for 3 cases of MMMT of the ovary with review of literatures. Clinical history substantiated previous reports in postmenopausal women wit this tumor. Symptoms were the same as for ovarian malignancy in general. All the patients presented wit stage II disease, according to the International Federation fo Gynecology and Obstetrics (FIGO) classification. Two patients died of tumor 4 and 10 months after operation, respectively. One patient had been alive at 2 months after operation. None of 3 cases demonstrate evidence of endometriosis in the remaining ovaries. Microscopically, periodic acid-Schiff (PAS)-positive, diastase-resistant hyaline droplets were found frequently in undifferentiated mesenchymal stroma and epithelial structures. The clinical significance and origin of the hyaline droplets in MMMT should be further explored.
Female ; Humans

Gross deciduosis in pregnancy is rare. A case of disseminated deciduosis peritonei studied by light and transmission electron microscopy is reported. The pathogenesis of deciduosis peritonei and relationship with leiomyomatosis peritonealis disseminata are discussed in view of the present findings and those previously reported.
Pregnancy ; Female ; Humans

We reported 3 cases of intestinal anisakiasis. The patients had abdominal pain, nausea or vomiting, after eating raw sea-fishes 1 to 5 days before. Intestinal resection was performed under the impression of mechanical obstruction or cancer. The resected intestines showed marked edema, congestion or hemorrhage in the mucosa. Microscopically the larvae were found in the submucosa or inner muscle layer, and surrounded by phlegmonous inflammation with intense eosinophilic infiltration. The larvae were identified as Anisakis spp. by multiple sections.

Gatric duplication is a rare congenital anomaly. Thus for about 90 cases of gastric duplication have been recorded in the literature. It is less frequent than small intestinal or eosphageal duplication, and accounts for only 3.8% of all gastrointestinal tract duplication. Most gastric duplications are seen during the first year of life. Palpable abdominal mass and gastric outlet obstruction in infancy are most common presentation. We experienced a case of non-communicating gastric duplication. A 12-year-old girl visited St. Mary's Hospital because of indigestion, intermittent vomiting, and left upper quandrant pain for about 40 days. She have had intemittent abdominal pain with concomitant increased level of amylase since 5 years old. Physical examination showed a hen's egg sized palpable mass on left upper quadrant of the abdomen. Upper GI series and barium enema revealed only indentation of duodenal C-loop, and sonogram and abdominal CT demonstrated isolated cystic mass along the greater curvature of gastric antrum. She had taken an operation under the impression of pancreatic pseudocyst. Operation revealed a cystic mass, located along the greater curvature. There was no pathologic change in the pancreas. Microscopic findings of the cyst wall revealed normal gastric mucosal lining and common muscle layer, shared with gastric antral muscle layer.
Cysts