- Multiple Glomus Tumors of the Ankle with Prominent Intranuclear Pseudoinclusions.
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Jae Yeon Seok, Se Hoon Kim, Tae jung Kwon, Jieun Kwon, Yoon Hee Lee, Kyoo Ho Shin, Woo Ick Yang
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Korean J Pathol. 2007;41(5):337-342.
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- Glomus tumors are neoplasms that are composed of modified smooth muscle cells of the glomus body. Here, we report a case of multiple glomus tumors of the ankle that showed various histologic types, including the solid type (glomus tumor proper) and angiomatous type (glomangioma). The tumor cells observed in this case also showed prominent intranuclear inclusions, which has not yet been reported in glomus tumors. Ultrastructural examination demonstrated that the nuclear inclusions were not true inclusion bodies but were intranuclear cytoplasmic pseudoinclusions formed by cytoplasmic invaginations that formed as a result of the deep and complex nuclear contours.
- Age-related Alterations of Normal Ascending Aorta among Koreans with Special Reference to Cystic Medial Necrosis.
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Tae Jung Kwon, Dong Hwan Shin, Kyung Moo Yang, Nak Eun Chung
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Korean J Pathol. 2002;36(5):281-285.
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- BACKGROUND
The specificity of aortic alteration in the pathogenesis of aortic dissection has been challenged. To obtain comprehensive morphologic data that may enhance the appreciation of the pathogenesis of aortic disease in normal aorta among Koreans, we performed a morphologic study of aorta with aging.
METHODS
The histologic and morphometric studies of ascending aorta without cardiovascular disease were carried out on seventy-two autopsy cases. Alcian blue-stained sections were subjected to morphometric study using image analysis system. The age range of the cases was from newborn to those who had been in their eighties.
RESULTS
The most prominent feature of aging aorta was fragmentation and loss of elastic lamellae, and expansion of interlamellar spaces. Cystic medial necrosis of varying degrees was observed in almost every specimen. On the morphometric study, the percentage area of mucoid degeneration revealed no statistically significant differences among the varying age groups. Compared to males, female subjects exhibited significant mucoid degeneration (p<0.05).
CONCLUSIONS
The alteration of elastic lamellae is increased with age. Cystic medial necrosis is not considered merely an aging phenomenon, but is enhanced in the aorta of females.
- Tracheobronchial Aspergillosis An autopsy case report.
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Tae jung Kwon, Dong Joo Lee, Il Hoon Kwon
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Korean J Pathol. 1999;33(8):620-623.
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Abstract
- Tracheobronchial aspergillosis is an unusual form of invasive aspergillosis characterized by noninvasive or only superficially invasive tracheobronchitis with a propensity for dissemination. We report a two-year-old male who suddenly died of respiratory failure. Postmortem examination revealed a pseudomembrane covering the mucosa of larynx, trachea and bronchial tree of both lungs.
This pseudomembrane was composed predominantly of Aspergillus hyphae. There was transmural necrotizing bronchitis with fungal invasion to the narrow zone of peribronchial tissue, and dissemination to the stomach and kidney. This form of pulmonary aspergillosis had not been reported in this country.
- Amniotic Fluid Embolism of Lung: Clinical and histopathological study.
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Tae Jung Kwon
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Korean J Pathol. 1994;28(6):651-656.
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- Amniotic fluid embolism is caused by the infusion of amniotic fluid into the maternal circulation with embolization to the lungs during pregnancy, labor or just after delivery. Clinically, this condition combines acute cardiopulmonary failure with a hemorrhagic tendency. We have experienced 11 autopsy cases of amniotic fluid embolism for about 2 years. The most common presenting feature was the postpartum uterine bleeding, followed by shock during oxytocin-induced labor. Histologically, various amount of amniotic debris, among which the most common component was epithelial squames, was demonstrated within the pulmonary vasculatures. In 4 cases, many fibrin thrombi were noted, reflecting the coagulation defect. Masson's trichrome and Alcian blue stains were proven to be valuable to demonstrate the squames and mucin, respectively.
- Lhermitte-Duclos Disease in a Sudden Death: An autopsy case.
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Tae Jung Kwon, Tae Seung Kim, Han Young Lee, Shin Mong Kang
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Korean J Pathol. 1994;28(1):73-78.
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- Lhermitte-Duclos disease of the cerebellum manifests itself as a slowly growing mass formed by abnormal neurons that appear more malformative than tumoral. Although most cases show satisfactory clinical evolution, several cases, not recognized in life, died abruptly, usually from respiratory arrest. We recently experienced a 19 year old male, who died suddenly during alcohol drinking. At autopsy, the cerebellum revealed thickening of the folia over two limited areas.
Microscopically, the lesion was characterized by proliferation of abnormal neuronal cells with excessive myelination of their axons, disappearance of Purkinie cells and greatly reduced white mater. Theories regarding the pathogenesis of Lhermitte-Duclos disease were reviewed and discussed.
- Sequential Ultrastructural Change of Chorionic Villi in Human Placenta by Gestational Period.
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Tae Dong Park, Tae Jung Kwon, Je G Chi
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Korean J Pathol. 1993;27(5):468-484.
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- A study was performed to observe the sequential morphological change of the human placental barrier by means of light microscopy, immunohistochemistry, scanning electron microscopy and transmission electron microscopy. The examined placentas ranged in age from 4 weeks gestation to the full-term(40 weeks). Sixty seven placental specimens were obtained immediately after delivery. With the progression of gestation, the microvilli on the surface of syncytinum tended to be fewer, shorter and blunter. The syncytiotrophoblasts were getting thinner with formation of vasculo-syncytial membrane. The cytotrophoblasts formed a continuous layer which progressively disappeared but still present in the mature villi. In view of presence of intermediate cells and remnant of desmosomes, the cytotrophoblasts appeared to form the syncytiotrophoblasts.
In early pregnancy, capillary formation took place by the aggregation and differentiation of the proliferation and aggregation of endothelial cells and pericytes.
Myofibroblasts in villous stroma were examined by desmin immunohistochemical staining, and detected from 19 weeks to the full-term. During last period of pregancy definitive smooth muscle cells could be demonstrated, suggesting that the presence of myofibroblasts or smooth muscle cells are closely related to the placental maturity. Scanning electron microscopy of the early placenta showed numerous syncytial sprouts representing stages in the formation of new villi, but in the late period of gestation syncytial sprouts were diminished. It is concluded that the syncytiotrophoblast is originated from the cytotrophoblast in early pregnancy as the placental barrier is formulated. Moreover, myofibroblasts and smooth muscle cells in villous stroma play important role in placental maturation.
- Adenoid Cystic Carcinoma of the Esophagus: Report of a case with brief review of the literature.
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Eun Suk Koh, In Sook Kim, Tae Jung Kwon, Dong Wha Lee, Chan Sup Shim, Kihl Rho Lee
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Korean J Pathol. 1990;24(4):482-488.
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- Adenoid cystic carcinoma of the esophagus is a rare tumor and has been considered to be counterpart of the salivery gland. The patient we experienced was a 60-year-old female who had a tumor in the lower third of the esophagus. The tumor was located in the submucosa and showed histologic features similar to those of the salivary gland. Electron micrsopic examination revealed ductal structures invested by basal lamina, and clusters of basaloid cells with tonofilaments and desmosomes. No myoepithelial cells were identified. Immunohistochemical studies for S-100 protein, cytokeratin and vimentin were performed. A few cells showed positive reaction to the S-100 protein. These findings suggest that the esophageal adenoid cystic carcinoma arises from the duct of submucosal gland.
- Three Cases of Neuroblastoma in Adults: Electromicroscopic study.
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In Sook Kim, Tae Jung Kwon, Dong Wha Lee
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Korean J Pathol. 1990;24(2):153-160.
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- Because neuroblastoma is predominantly a tumor of childhood, patholgists and clinicians tend to exclude it from differential diagnosis when the patient is an adult. The diagnosis of neuroblastoma by light microscopy can be difficult because of similarities between neuroblasts and cells of other round cell neoplasms. The fine structural features of neuroblastoma is distinctive and is valuable in its diagnosis. We present 2 cases of neuroblastoma and a case of ganglioneuroblastoma arising in adults with their ultrastructural findings.
- Fine Needle Aspiration Cytology of Liposarcoma: Report of 3 cases.
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Eun Suk Koh, So Young Jin, Tae Jung Kwon, Dong Wh Lee
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Korean J Cytopathol. 1990;1(2):139-146.
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- The application of fine needle aspiration (FNA) cytology to the soft tissue tumors had been neglected. In recent years, however, FNA has been used increasingly in the preoperative diagnosis of these tumors due to its usefulness and accuracy.
We present 3 cases of liposarcoma, myxoid, myxoid with round cell, and pleomorphic, diagnosed by FNA cytology with histologic confirmation. Good correlation between histologic and FNA cytologic findings was found. Although the cytologic appearances of liposarcomas varied with histologic type, the main criterion was the presence of atypical multivacuolated lipoblast with characteristically scalloped nuclei.
- Congenital Subglottic Stenosis of the Larynx Associated with Tracheoesophageal Fistula: 1 autopsy case.
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In Sook Kim, Tae Jung Kwon, Dong Wha Lee
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Korean J Pathol. 1989;23(3):350-354.
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- Congenital subglottic stenosis of the larynx is one of the most common cause of chronic airway obstruction im infancy and childhood. It is defined as narrowing of the space bounded inferiorly by the inferior margin of the cricoid cartilage amd superiorly by the insertion of the fibers of the conus elasticus into the true vocal cords. In case we experienced was a female full-term baby delivered by Cesarean section. The stenosis was believed by hypertrophy of stromal soft tissue and cricoid cartilage in the subglottic area. The lesion was associated with tracheoesophageal fistula of H1 type. A brief review of the literature was done.
- A Case of Desmoplastic Fibroma of the Mandible.
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Dong Won Kim, Tae Jung Kwon, Dong Wha Lee
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Korean J Pathol. 1988;22(3):340-347.
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- A case of desmoplastic fibroma of mandible in a 18 years old woman is presented. She had complained progressive swelling of right mandible for 4 years. Radiographically, a multilocular radiolucent of right hemimandibulectomy showed multinodular external surface without cortical destruction.
Cut surfaces revealed grayish white, fibrous homogeneous appearance with firm consistency, sparing head portion. The maximum diameter of the tumor was 13 cm. Microscopically, the tumor was composed of interlacing bundles of monomorphic spindle-shaped cells with abundant intercellular collagen.
Ultrastructurally, most tumor cells were fibroblastic-like cells with abundant RER and cytoplasmic fibrils, but a few disclosed transition to myofibroblasts. However, no fully developed myofibroblasts were seen.
- Malignant Mixed Mesodermal Tumors of Ovary: 3 cases report.
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Dong Won Kim, Tae Jung Kwon, Dong Wha Lee
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Korean J Pathol. 1988;22(2):169-179.
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- 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.
- Ultrastructure of 2 Malignant Fibrous Histiocytomas with Reference to the Histogenesis.
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Tae Jung Kwon, Keum Min Park, Dong Wha Lee
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Korean J Pathol. 1986;20(4):475-483.
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- Electron microscopic study of two malignant fibrous histiocytomas confirmed the presence of previously described tumor cells in the literature. In addition, there existed intermediate cells with morphologic features of both myofibroblasts and histiocytes, or both histiocytes and smooth muscle cells. Our result supported the idea that malignant fibrous histiocytoma may be derived from the undifferentiated mesenchymal cells that differentiate primarily along a fibroblastic and histiocytic cells.
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