Résumé
Palmoplantar lichen planus is a rare, localized variant of the disease that may create difficulty in diagnosis if it is present as an isolated finding. As palmoplantar lichen planus do not usually have the classically clinical features of lichen planus, a biopsy is very useful. Histopathologic findings are identical to classic lichen planus. According to literature, similar lichen planus may be found elsewhere on the body in palmoplantar lichen planus. We report a case of lichen planus limited to the soles in a 50 year-old female, who presents with erythematous hyperkeratotic crusted pruritic plaques on both soles.
Sujets)
Femelle , Humains , Adulte d'âge moyen , Biopsie , Diagnostic , Lichen plan , LichensRésumé
Granulocyte colony-stimulating factor (G-CSF) is a hematopoietic growth factor (HGF) with many applications in cancer therapy. Many cutaneous adverse reactions associated with G-CSF have been reported in recent years, including injection site reactions, pyoderma gangrenosum, Sweet's syndrome, cutaneous leukocytoclastic vasculitis, and widespread folliculitis. We report a case of vasculitis with atypical myeloid cell induced by G-CSF on the lower extremities
Sujets)
Folliculite , Facteur de stimulation des colonies de granulocytes , Granulocytes , Membre inférieur , Cellules myéloïdes , Pyodermie phadégénique , Syndrome de Sweet , Vascularite , Vascularite leucocytoclasique cutanéeRésumé
Morphea is a rare, sclerotic connective tissue disorder and is thought to be caused by a decreased collagenase activity. Numerous treatment modalities have been tried, such as infiltration with glucocorticosteroid, D-penicillamine, antimalarial agents and cyclosporine. However, all have shown only limited success. We report a case of a 21 year- old female with localized scleroderma, who showed a marked improvement after localized therapy with high dose UVA-1.
Sujets)
Femelle , Humains , Antipaludiques , Collagenases , Tissu conjonctif , Ciclosporine , Pénicillamine , Photothérapie , Sclérodermie localiséeRésumé
Amyloidosis is a disorder of protein metabolism characterized by the extracellular deposition of abnormal protein fibrils. We report a case of macular amyloidosis due to nylon towel on his back. A 61-year-old male presented with asymptomatic hyperpigmented macules on the scapulae for 6 years. He had a habit of scrubbing his back for many years with a rough nylon towel while taking a bath. The histologic examination revealed liquefaction degeneration and homogenous eosinophilic deposition in the papillary dermis. In Congo red, amyloid material stained positively and in anti-keratin antibody staining. He had neither clinical nor laboratory evidence of systemic amyloidosis. A diagnosis of friction amyloidosis was made on histological and immunohistopathological findings.
Sujets)
Mâle , HumainsRésumé
Kikuchi's disease(Histiocytic necrotizing lymphadenitis) is an idiopathic, self-limiting disease typically affecting cervical lymph nodes in young adults. Cutaneous involvement has been reported in 16-40%. We report a case of Kikuchi's disease in 10-year-old female that showed asymptomatic erythematous papules on the face accompanied by cervical lymphadenopathy. The histopathologic examination of the skin revealed diffuse dermal lymphohistiocytic infiltrate, a large amount of nuclear dust with absence of neutrophils, which is characteristic of Kikuchi's disease. In general, histopathologic findings of skin biopsy show a mirror image of that of lymph nodes involved in Kikuchi's disease. Therefore, it is important to recognize cutaneous manifestations of this entity, because we can avoid invasive lymph node biopsy. if skin lesions involved show typical histopathologic findings of Kikuchi's disease.
Sujets)
Enfant , Femelle , Humains , Jeune adulte , Biopsie , Poussière , Lymphadénite nécrosante histiocytaire , Noeuds lymphatiques , Maladies lymphatiques , Granulocytes neutrophiles , PeauRésumé
Leiomyosarcoma are malignant mesenchymal tumors usually found in the uterus, retroperitoneaum, gastrointestinal tract, or deep soft tissue. They do however, rarely occur as primary skin tumors. Metastases from a leimyosarcoma to skin are unusual. We report a case of metastatic leiomyosarcoma on the scalp. A 47-year -old female had hysterectomy following diagnosis of leiomyosarcoma 17 months ago. She presented with an 8 months history of a solitary nontender nodule on the scalp. The histological examination revealed a well demarcated, quite high cellular tumor nodule in the deep dermis . A tumor was usually composed of spindle cells with abundant eosinophilic cytoplasm and elongated, blunt ended nuclei. Some other cells showed pleomorphic nuclei and mitotic figures. Immunohistopathological staining of smooth muscle actin was positive. A diagnosis of metastatic leiomyosarcoma was made on histological and immunohistopathological findings.
Sujets)
Femelle , Humains , Actines , Cytoplasme , Derme , Diagnostic , Granulocytes éosinophiles , Tube digestif , Hystérectomie , Léiomyosarcome , Muscles lisses , Métastase tumorale , Cuir chevelu , Peau , UtérusRésumé
Linear IgA bullous dermatosis(LAD) is a subepidermal blistering disease characterized by linear IgA deposits in the basement membrane zone when visualized on direct immunofluorescence microscopy. Intravenous vancomycin has been the drug most implicated, and this disease has been termed vancomycin-induced LAD. Vancomycin-induced LAD tends to spontaneously resolve upon discontinuation of the offending drug. A 70-year-old male patient developed septic knee. Bacterial cultures from this lesion grew methicillin- resistant Staphylococcus aureus. He was treated with vancomycin. Eight days after vancomycin injection, painful bullae appeared on the trunk, feet, and genitalia. A skin biopsy showed a subepidermal blister with an infiltrate composed of neutrophils and eosinophils. Direct immunofluorescence of perilesional skin showed linear IgA deposition at dermo-epidermal junction. The vancomycin was stopped; teicoplanin was substituted. He was treated with dapsone. The use of vancomycin is increasing in Korea and therefore it is important for dermatologist to be aware of the association with LAD.
Sujets)
Sujet âgé , Humains , Mâle , Membrane basale , Biopsie , Cloque , Dapsone , Granulocytes éosinophiles , Technique d'immunofluorescence directe , Pied , Système génital , Immunoglobuline A , Genou , Corée , Dermatose bulleuse à IgA linéaire , Microscopie , Granulocytes neutrophiles , Peau , Staphylococcus aureus , Téicoplanine , VancomycineRésumé
Verrucous hyperplasia shows multiple warty like lesion on the amputation stump, but the pathologic findings of viral verrucae has not been discovered. A verrucous plaque on the amputation stump of the right leg was found in 31-year-old man. He had suffered from a traumatic amputation of right leg since 8 years ago. A leg prosthesis had been worn since that time. Histopathologic findings shows hyperkeratosis, acanthosis, papillomatosis, superficial dermal edema and dilated thick-walled venules oriented vertical to the skin surface. Verrucous hyperplasia was diagnosed with lymphedema on the basis of clinical and histological findings.