1/5. hyperpigmentation caused by hyperthyroidism: differences from the pigmentation of Addison's disease.Two cases of hyperthyroidism with hyperpigmentation are presented. In both cases, hyperpigmentation was seen on the lower extremities, most strikingly on the shins, backs of the feet and the nail bed. histology of the pigmented skin showed basal melanosis and heavy deposition of haemosiderin around dermal capillaries and sweat glands. Treatment with mercazol in both cases resulted in no significant waning of pigmentation. Distribution of hyperpigmentation, haemosiderin deposition and poor response to the treatment may be characteristic features of the pigmentation caused by hyperthyroidism, and may represent differences from the pigmentation seen in Addison's disease.- - - - - - - - - - ranking = 1keywords = pigmented (Clic here for more details about this article) |
2/5. Treatment of facial chromhidrosis with botulinum toxin type A.BACKGROUND: hyperhidrosis is an idiopathic condition of exaggerated sweat production by the eccrine glands that affects approximately 1% of the population. There are many viable therapeutic options and the use of botulinum toxin has become an important treatment option and received FDA approval for this disorder in July 2004. The other forms of aberrant sweating; bromhidrosis (malodorous) and chromhidrosis (pigmented) are much rarer and more recalcitrant to treatment. METHOD: This is the first case report of dark-colored facial sweat in a young woman that was adequately controlled with botulinum toxin. CONCLUSION: Chromhidrosis is an unusual clinical entity with an ill-defined glandular etiology. The successful response to botulinum toxin supports the eccrine gland as a source of the sweat production and, furthermore, that the administration of this toxin should be considered as a form of therapy.- - - - - - - - - - ranking = 1keywords = pigmented (Clic here for more details about this article) |
3/5. Reticulate pigmented anomaly of the flexures (Dowling-Degos disease): a case report associated with hidradenitis suppurativa and squamous cell carcinoma.We report the first case of reticulate pigmented anomaly of the flexures (Dowling-Degos disease) associated with hidradenitis suppurativa. Our patient also showed a squamous cell carcinoma of the groin, which is a rare complication of hidradenitis suppurativa. The relationship between Dowling-Degos disease and hidradenitis is discussed and the literature on squamous cell carcinoma and hidradenitis suppurativa is reviewed.- - - - - - - - - - ranking = 5keywords = pigmented (Clic here for more details about this article) |
4/5. Neutrophilic eccrine hidradenitis. Evidence implicating bleomycin as a causative agent.A 13-year-old girl receiving multiple agent chemotherapy for osteosarcoma was found to have neutrophilic eccrine hidradenitis (NEH). This dermatosis is marked histopathologically by necrosis of the eccrine structures with a neutrophilic infiltrate. Clinically, the presentation is variable and the differential diagnosis is extensive. Our patient's clinical picture was unique in that she had hyperpigmented plaques instead of purpuric nodules or erythematous plaques as described previously. Currently, NEH is felt to be a complication of chemotherapy. The most likely causative agent in our patient was bleomycin. physicians should be aware of this entity and its variable clinical presentation.- - - - - - - - - - ranking = 1keywords = pigmented (Clic here for more details about this article) |
5/5. Porokeratotic eccrine ostial and dermal duct naevus with dermatomal trunk involvement: literature review and report on the efficacy of laser treatment.Porokeratotic eccrine ostial and dermal duct naevus (PEODDN) is a rare, benign hamartomatous malformation involving the eccrine sweat duct. The existence of filiform keratinous plugs that represent cornoid lamellae overlying dilated infundibula of eccrine ducts is a distinctive feature and the presence of associated abnormal dermal ducts is frequent. We report a patient with PEODDN who exhibited lesions on the left side of her chest. Cases of PEODDN reported in the literature are reviewed. Our experience in treating this patient with ultrapulsed carbon dioxide laser is also presented.- - - - - - - - - - ranking = 147.42953129725keywords = naevus (Clic here for more details about this article) |