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Biomedical subjects

I S Hong

Publications and source records attributed to I S Hong.

10 recordsLinked to original sources
PubMed2001

Clinical usefulness of magnetic resonance cisternography in patients having hemifacial spasm.

To evaluate the usefulness of MR cisternography fourteen patients that had hemifacial spasm and 20 control patients underwent MR cisternography. All the patients with hemifacial spasm had a confirmed vascular compression after surgery. MR cisternography was performed using a 1.5-tesla superconducting MR magnet in which a 3D (dimensional) heavily T2-weighted turbo spin-echo sequence was used. In 34 randomly selected individuals, we retrospectively determined whether MR cisternography images could be used to evaluate symptoms, and what the benefits of obtaining this image was. The results were correlated with the surgical findings. The sensitivity was 100% and the specificity was 94% in all patients having a hemifacial spasm. The offending vessels were the anterior inferior cerebellar artery (AICA) in six patients cases, the posterior inferior cerebellar artery (PICA) in six, both the vertebral artery and PICA in one, and the vertebral artery in one. All the images showed good resolution and contrast, and also showed the exact correlation between the facial nerve and intracranial vessels in the multiplaner image. The findings of neurovascular compression were well correlated with the surgical findings. We believe that high-resolution 3D MR cisternography is a very useful method for evaluating the neurovascular compression in patients that have hemifacial spasm.

Adult↗
PubMed1993

CT manifestations of cervical tuberculous lymphadenitis.

Cervical tuberculous lymphadenitis is a commonly encountered disease, especially in Korea. Differentiation from other metastatic lymphadenopathies and benign conditions such as cystic neck masses is important. CT findings of tuberculous lymphadenopathy in the abdomen and thorax are frequently reported in the literature, though there are only a few articles concerning cervical tuberculous lymphadenopathy. The authors retrospectively analyzed CT findings of 42 cases with cervical tuberculous lymphadenitis regarding distribution, contour, enhancing pattern, changes in the adjacent fascial plane, and dermal and subcutaneous manifestations. We concluded that the following are suggestive of tuberculous lymphadenitis: the presence of conglomerated nodal masses with central lucency, thick irregular rim of contrast enhancement and inner nodularity, varying degree of homogenous enhancement in smaller nodes, dermal and subcutaneous manifestations of inflammation such as thickening of the overlying skin, engorgement of the lymphatics and thickening of the adjacent muscles, and a diffusely effaced fascial plane. There were only a few cases of central low densities with calcifications on CT scan. However, common CT patterns of tuberculous adenitis may also be seen in other diseases, such as lymphoma and metastatic lymphadenopathy, and a thorough clinical examination and detection of primary lesions may be more helpful in differentiating these lymphadenopathies.

Adolescent↗
PubMed1993

Actinomycosis of the neck: diagnosis by fine-needle aspiration biopsy.

A patient with actinomyces infection of the posterior neck was diagnosed by fine-needle aspiration biopsy. The lesion presented as a recurrent, firm, and indurated mass that was clinically diagnosed as adenitis and cellulitis and was thought to be a lymphoma 6 months after the onset of his illness. Smears and cell block sections of the aspirate showed characteristic colonies ("sulfur granules") of actinomyces. Subsequent regional lymph node biopsy revealed reactive lymphoid hyperplasia.

Actinomyces↗
PubMed1992

Multicentric gastrointestinal and extraintestinal leiomyosarcomatosis: a case report.

This article presents a case of synchronous polypoid primary adenocarcinoma of the transverse colon without lymph node or distance metastasis. During the postmortem examination, polypoid smooth muscle tumors in the patient's gastrointestinal tract and extensive extraintestinal smooth muscle tumors in the patient's liver, lungs, and visceral organs, including the diaphragm, parathyroid gland, bone marrow of the vertebrae, and subcutaneous tissue of the left wrist, were reviewed to determine their origin. Histomorphologically, all of the tumors were classified as leiomyosarcomas.

Adenocarcinoma↗
PubMed1981

Cutaneous T cell lymphoma (mycosis fungoides) in blacks.

Between 1954 and 1980, 11 patients with cutaneous T cell lymphoma (mycosis fungoides) were diagnosed at the Howard University Hospital. There were five males and six females, all of whom were black. In association with the cutaneous T cell lymphoma, six cases of poikiloderma atrophicans vasculare were demonstrated.

Black or African American↗
PubMed1977

Thyroglossal cyst in black patients.

During the 16-year period, July 1, 1959 to June 30, 1975, inclusively, there were only 20 patients with thyroglossal cyst found at the Howard University Hospital (0.03 percent of routine surgicals). There were 12 males and eight females, all of whom were black. Anatomic and histopathologic variations of thyroglossal cysts will be emphasized, and the pitfalls in diagnosis discussed. A brief review of the literature will be presented.

Adolescent↗
PubMedDate not supplied

Cytologic findings in a case of malignant fibrous histiocytoma.

Morphologic changes in malignant cells obtained by needle aspiration of a recurrent malignant fibrous histiocytoma of the left axilla in a 61 year old male are reported. Basically, two types of cells are described: pleomorphic malignant histiocytic cells with marked phagocytic activity and sarcomatous spindle cells. Intermediate forms with features of both types are identified.

Axilla↗