Carta científico-clínica. DOI: / Liquen amiloide generalizado con respuesta satisfactoria a ultravioleta B de banda estrecha. Satisfactory. PubMed. 9. Mascaró JM. Liquen amiloide del pabellón auricular (case 11). Book of reports VII Reunión Internacional de Dermatología de Barcelona: p CAPÍTULO 6: Liquen simple crónico. Sections ++. Liquen crónico de Vidal, neurodermatitis circunscrita, jiotes, lichen simplex. ++ ), liquen amiloide ( fig.
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Liquen amiloide en las piernas | Piel. Formación continuada en dermatología
amilloide Are you a health professional able to prescribe or dispense drugs? These globules were prominently highlighted by a crystal violet stain suggesting an amyloid derivation Fig. Acanthosis and a pauci-inflammatory infiltrate are also present. The finding of the auricular concha as a site involved in biphasic amyloidosis is of ilquen, and further supports the theory of lichen and macular amyloidosis as falling on differing ends of the same disease spectrum.
SRJ is a prestige metric based on the idea that not all citations are the same. These patients were all healthy middle-aged women ages who had had their condition for years. Amyloid globules can usually be visualized by light microscopy but lique enhanced by crystal violet, thioflavin S, or Congo red stains.
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In addition, a rare nodular variant of cutaneous amyloidosis exists and differs from lichenoid and macular amyloid in that it is derived from immunoglobulins. It is thought to be more common in the Asian population. Only comments seeking to improve the quality and accuracy of information on the Orphanet website are accepted. Print Send to a friend Export reference Mendeley Statistics.
Identification of the deposited material comes from routine histopathology as well as electron microscopy. Scanning magnification of an auricular papule as shown in Fig. InHicks [ 5 ] presented four additional cases of papules on the concha of the ear, which appeared clinically and histologically identical to those previously reported by Sanchez.
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Continuing navigation will be considered as acceptance of this use. Lichen amyloidosis and macular amyloidosis are likely the result of focal epidermal damage, although this has not been conclusively proven. Subscriber If you already have your login data, please click here. Biopsies were taken from both the back and the ear for histopathologic analysis. The second patient is a year-old woman who presented with a long-standing pruritic rash on her upper back.
Rarely, it is reported to occur as an inherited familial condition [ 2 ]. No evidence of interface dermatitis was detected. Two cases of lichen amyloidosis of the auricular concha are presented here, supplementing the already approximately twenty cases of lichen amyloidosis of the auricular concha reported to date.
Cutaneous manifestations of systemic amyloidosis are observed mainly in individuals with a plasma cell dyscrasia, often multiple myeloma.
The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment. The term amyloid was reportedly coined by the famous 19th century pathologist Virchow who attributed its major constituent amiiloide carbohydrate accumulation [ 1 ].
This item has received. In these instances, auricular papules were associated with more widespread cutaneous amyloid elsewhere. Pemphigus Vegetans in the Inguinal Folds.
Physical exam was remarkable for bilateral, symmetrical brown scaly mm monomorphous papules mainly amiloidee the conchal bowls Fig. In these instances deposited amyloid derives from immunoglobulin light chains.
Orphanet: Liquen amiloide
Check this box if you wish to receive a copy of your message. Other authors have proposed that lichen amyloidosis and macular amyloidosis lie along the same spectrum, and that intermediate liqune exist [ 15 ].
SRJ is a prestige metric based on the idea that not all citations are the same. In both patients punch biopsies from the conchal bowl yielded a pauci-inflammatory specimen with orthohyperkeratosis and acanthosis Fig. Electron microscopy showed straight, non-branching intermediate filaments densely woven into amilojde, which are highly typical for amyloid.
In the largest amiloids to date of primary cutaneous amyloidosis, coexistence of lichen and macular amyloidosis in the same patient, termed biphasic amyloidosiswas found in 25 percent of nearly patients [ 2 ]. Lichen amyloidosis is a rare chronic form of cutaneous amyloidosis see this terma skin disease characterized by the accumulation of amyloid deposits in the dermis, clinically characterized by the development of pruritic, often pigmented, hyperkeratotic papules on trunk and extremities, especially on the shins, and histologically by the deposition of amyloid or amyloid-like proteins in the papillary dermis.
The two major forms of primary localized cutaneous amyloidosis are lichen amyloidosis and macular amyloidosis. Due to the striking similarities he concluded that these cases must represent the same pathologic process. The documents contained in this web site are presented for information purposes only. There are several case reports of cutaneous amyloidosis of the auricle occurring in the setting of systemic amyloidosis [ 121314 ].
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