A 2-month-old Korean boy presented with a solitary papule on the cheek which was noted at birth. Histopathologic findings were consistent with angiofibroma of fibrous papule of the face (FPF). FPF is known to affect adults, and congenital occurrence has not been reported to the best of our knowledge. We report a case of congenital FPF which showed a facial papule clinically and an angiofibroma histologically.
Adult ; Angiofibroma ; Cheek ; Humans ; Infant ; Male ; Parturition

Palisaded encapsulated neuroma (PEN) is a distinctive benign cutaneous tumor that was first described by Reed et al. in 1972. We have recently experienced two cases of PEN. Clinically, these lesions were asymptomatic, flesh-colored or reddish brown papules or nodules. Light microscopy revealed several lobulated, partially encapsulated dermal tumors composed of interlacing Schwann cell fascicles. In some areas, palisading of nuclei was observed, but this was not characteristic. On Bodian staining, moderate to large numbers of tiny axons were observed. Electron microscopy demonstrated many myelinated axons incompletely invested by Schwan cell cytoplasm.
Axons ; Cytoplasm ; Microscopy ; Microscopy, Electron ; Myelin Sheath ; Neuroma*

BACKGROUND: Evaluation of the cell proliferation activity of neoplasm is useful in making a diagnosis and prognosis. Immunohistochemical staining using MIB1 monoclonal antibodies has recently been demonstrated to assess tumor cell proliferation activity easily, because it can be performed on paraffin-embedded specimens and is available in a retrospective study. OBJECTIVE: The purpose of this study to investigate (a) the use of Ki-67 antibodies in distinguising between benign melanocytic nevus and malignant melanoma, and (b) the correlation between the Ki-67 labelling index(positive number per 100cells) and histological parameters such as the Breslow index, Clarks level, mitotic rate(mitoses per 100cells) in malignant melanoma. METHOD: A total of 37 formalin-fixed, paraffin-embedded melanocytic skin lesions(benign melanocytic nevus 21; malignant melanoma 16) were stained with MIB1 using the one hour method. The values of the Ki-67 labelling index were measured in all the lesions. For each case of malignant melanoma, the Breslow index, Clarks level and mitotic rate were quantitatively evaluated. RESULT: The Ki-67 labelling index averaged 2.6 +1.4 in benign melanocytic nevus and 22.4+ 6.2 in malignant melanoma. In malignant melanoma, the values of the Ki-67 labelling index were significantly correlated with Breslow index(r=0.764), Clark's level(r=0.885) and mitotic rate(r=0.754). CONCLUSION: Our findings suggest that Ki-67 may be a useful tool in distinguising between benign melanocytic nevus and malignant melanoma. According as Ki-67 labelling index correlates with well-established prognostic parameters(Breslow index, Clark's level, mitotic rate), it may therefore carry additional prognostic value for patients with malignant melanoma.
Antibodies ; Antibodies, Monoclonal ; Cell Proliferation ; Diagnosis ; Humans ; Ki-67 Antigen* ; Melanoma ; Nevus, Pigmented ; Prognosis ; Retrospective Studies ; Skin*

We report herein a case of lymphomatoid papulosis showing atypical clinical manifestations. A 54- year-old man had had recurrent erythematous necrotic papules and nodues, numbering more than 200 lesions at the most aggravated time, on the trunk, extremities, buttok, and face for the last twenty years. Recently, he complained of tender swelling on the neck, axillae, and inguinal lymph nodes accompanied by mild fever and gerneral weakness. We had performed thorough examinations including biopsy from the skin lesions, lymph node, and bone marrow to detect some evidences of transforming to malignant lymphoma, but found no evidence of malignant lymphoma except aneuploidy on DNA histogram. The patients showed proinpt response to methotrexate 10-30mg par week wit,hout showing distinct side reactions to the accurvulated dose of 780mg for the last 16 months.
Aneuploidy ; Axilla ; Biopsy ; Bone Marrow ; DNA ; Extremities ; Fever ; Humans ; Lymph Nodes ; Lymphoma ; Lymphomatoid Papulosis* ; Methotrexate ; Neck ; Skin

An open multicenter trial was conducted to assess the efficacy and tolerability of oral terbinafine in the treatment of onychomycosis during 10 months from April, 1992 to February, 1993. Of patients with clinically and mycologically proved onychomycosis recruited from the Department of Dermatology of 29 university and training hospitals in the Korea, 143 patients who could be followed up at the end of the study were evaluated. The group of fingernail infection received orally terbinafine 250mg once daily for 8 weeks and the group of toenail infection for 16 weeks. After stopping treatment, all patients were followed up for 12 weeks. The results were as follows: 1. On the mycological study at the initial visit, 101 causative organisms were isolated from 99 pateints and Trichophyton rubrum was common organism (40 strains). 2. The length of healthy, unaffected nail were increased significantly more than two-fold after the end of treatment and at the follow-up investigation, those were 11.8mm in fingernail group and 9.8mm in toenail group. 3. The mean of all clinical symptom scores on entry diminished significantly by the time of the end of treatment and cleared mostly at the follow-up. 4. The mycological cure rate(negative microscopy and culture) was 56.5% for fingernails and 69.3% for toenails at the end of treatment and 100% for fingernails and 89% for toenails at the follow-up investigation. 5. overall efficacy assessed by the patient and by the investigator were evaluated as more than moderate in 93.1% and 94.5% of patients and overall tolerability were evaluated as more than moderate in 100% of patients by both of them. 6. The adverse effects of terbinafine were noted in 10 patients(7%) out of the 143. The most frequent drug-related adverse events were mild-to-moderate gastrointestinal disturbances. Any changes in liver biochemical tests were not considered clinically relevant. In conclusion, oral terbinafine is effective and safe in the treatment of onychomycosis. Our results demonstrate that a treatment period of 8 weeks for fingernail onychomycosis and 16 weeks for toenail onychomycosis is sufficient.
Dermatology ; Follow-Up Studies ; Humans ; Korea ; Liver ; Microscopy ; Nails ; Onychomycosis* ; Research Personnel ; Trichophyton

BACKGROUND: Dendritic cells (DCs) play an important role in immune reactions. This study was designed to identify the distribution patterns of DCs and regulatory T-cells (Tregs) in cutaneous lymphomas. METHODS: Immunohistochemistry was used to determine langerin expression on Langerhans cells, CD11b on inflammatory DCs, CD209 and CD11c on dermal DCs, CD303 on plasmacytic DCs, and Foxp3 on Tregs in 81 cases of cutaneous lymphomas. RESULTS: Various DCs and Tregs were identified in most cutaneous lymphomas. Plasmacytic DCs, inflammatory DCs and Tregs were identified mainly in tumor areas, whereas dermal DCs were distributed both in the tumor and stromal areas. Among DCs, dermal DCs were most prominently identified in the cutaneous lymphomas not only in the tumor area but also in the stroma. The intense stromal infiltration of dermal DCs was consistent finding in T-cell lymphomas. Diffuse large B-cell lymphoma (DLBCL), not otherwise specified also showed intense stromal infiltration of dermal DCs, but stromal infiltration in DLBCL, leg type was relatively scant. CONCLUSIONS: The results suggest that all types of DCs and Tregs are involved in cutaneous lymphoma tumor immunity. Among them dermal DCs may play a dominant role.
Dendritic Cells ; Immunohistochemistry ; Langerhans Cells ; Leg ; Lymphoma ; Lymphoma, B-Cell ; Lymphoma, T-Cell ; T-Lymphocytes, Regulatory

Myoepithelial carcinomas are rare, malignant salivary neoplasms in which the tumor cells almost exclusively manifest myoepithelial differentiation. A 50-year-old man presented with an indolent movable submucosal mass of 10 years' duration on the right upper oral mucosa. The diagnosis of myoepithelial carcinoma originated from minor salivary gland was made by histopathologic and immunohistochemical evaluation.
Diagnosis ; Humans ; Middle Aged ; Mouth Mucosa ; Salivary Glands, Minor*

No abstract available.

The occurrence of sebaceous gland hyperplasia commonly develops in elderly individuals. Clinical appearance is a papule with a central umbilication corresponding to the histological opening of sebaceous duct in the center. The usual size is 2 to 3mm in diameter. The histological features include hyperplastic mature sebaceous lobules grouped around a widely dilated sebaceous duct. We report a case of a 7-year old child with mental retardation and giant size of sebaceous gland hyperplasia which lead us to such clinical impressions as a nevus sebaceus
Aged ; Child ; Humans ; Hyperplasia* ; Intellectual Disability ; Nevus* ; Sebaceous Glands*

A study evaluating the therapeutic effect of recombinant interferon-a ointment on several viral skin diseases was done. A total of 204 patients, 92 of herpes simplex, 90 of herpes zoster and 22 of varicella, were included in this study. Two different concentration of recombinant interferon-a ointment(l*10IU/g; group A, 1*10IU/g; group B) and placebo vehicle(control group) were applied topically on the early lesion of the disease. The evaluation of therapeutic effect was done by the measurement of time interval from the day of vesicle formation to the day of crust formation, The results were as follows; 1. Herpes sirnplex: Crust formation observed within 6 days in 70. 1% of group A. 63.9% of group B and 26.7%, of control group. The time of crust formation of group A and B was shorter than that of control group (p<0.01, P<0.05). 2. Herpes zoster: Crust formation observed within 10 days in 64. 3% of group A. 46.7% of group B and 33. 3% of control group. The time of crust formation of group A was shorter than that of control group (p<0.05). 3. Varicella: Crust formation observed within 6 days in 87. 5% of group A, 72.7% of group B and 66.7% of control group. Therefore we have been impressed that recombinant interferon-a ointment is an effective topical therapeutic agent and 1*10IU/g recombinant interferon-a clintment is more effective than 1*10IU/g recombioant interferon-a ointment for above viral skin diseases.
Chickenpox ; Herpes Simplex ; Herpes Zoster ; Humans ; Interferons* ; Skin Diseases, Viral*