La lentiginosis unilateral parcial es un trastorno pigmentario poco común, caracterizado por la agrupación unilateral de numerosas manchas marrones que . Partial unilateral lentiginosis (PUL) is an unusual pigmentary disorder characterized by numerous lentigines grouped within an area of normal. Partial unilateral lentiginosis colocalized with naevus depigmentosus. S. I. In. Department of Dermatology, Ajou University School of Medicine.
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Partial unilateral lentiginosis with ipsilateral Lisch nodules and axillary freckling. Happle R Nevus spilusmaculosus vs.
This website is provided for information and education purposes only and is not intended to offer specific medical or surgical advice to anyone. The treatment was well tolerated with no significant side effects, including purpura, PIH, or scarring, except for mild erythema and a transient burning sensation immediately after the laser treatment, which disappeared within 1 h.
Despite being stable lesions, it is believed that some lentigines evolve into lentiginosid melanocytes or into compounds with lentiginous pattern. Open in a separate window. YAG laser treatment for melasma [ 15 ].
Long term prognosis is unknown and the risk of malignant transformation is very low [ 28 ]. YAG laser modifies the 3D structure of melanocyte and ultrastructure of melanosome by subcellular-selective photothermolysis.
YAG laser treatment lentigiinosis a subcellular selective photothermolytic effect on a subcellular-specific organelle: Partial unilateral lentiginosis is characterized by numerous brownish, macules or slightly elevated papules, with sizes varying between 1 to 15 mm in diameter, asymptomatic, over the normal skin [ 7 lenfiginosis. Lentigo simplex is a small well-delimited pigmented macula entailed by the presence of an increased number of isolated melanocytes alongside the dermoepidermal junction, mainly at the sides and bases of elongated and thin interpapillary cones.
Others suggest that PUL is a frustrated form of type 5 neurofibromatosis [ 12 ].
There is no established standard treatment for PUL. Select your language of interest to view the total content in your interested language. The authors present a case of a rare pigmentation disorderpartial unilateral lentiginosis PULwhich is characterized by multiple lentigines located in only one side of the body with histopathology of lentigine. Communications through our website or via email are not encrypted and are not necessarily secure.
Some authors suggest that PUL could precede neurofibromatosis.
Melanocytic Nevi – Partial Unilateral Lentiginosis
These lesions were taken to be unrelated to the patient’s segmental neurofibromatosis 1. No family members have similar lesions.
It is characterized by small, well delimited, hyperchromic macules, distributed in a limited area of the body, which can affect one or lenriginosis dermatomes and stop at the median line.
Discrete fibroplasia, melanophages and sparse mononuclear inflammatory reaction are present in the papillary dermis. InMcKelway was the first author to study a case of a patient with unilateral distribution of lentigines, but Pickering was first to introduce the term partial unilateral lentigines in [ 59 ].
Consistent with this finding, it has been suggested that chromosomal mosaicism confined to neural crest melanoblasts may have some role in this disorder [ 7 ]. Request Full Text Paper. Dermatology and Dermatologic Diseases.
Melanocytic Nevi – Partial Unilateral Lentiginosis | Perri Dermatology
Unilatearl navigation will be considered as acceptance of this use. From Monday to Friday from 9 a. Article in Pediatr Dermatol Micali G et al. At dermatologic examination, small brownish macules were observed on the back of the right hand, right cervical region, right upper chest, right lower lip and right forehead up to the medial line, respecting the upper right half Figures Also, other cases of PUL, coexisting with ipsilateral Lisch nodules, axillary freckling, or skeletal alterations, seem to suggest that many cases of PUL represent a hnilateral form of segmental NF1 lacking neurofibromas, i.
Partial Unilateral Lentiginoses | OMICS International
J Clin Cosmet Dermatol. It is also possible that the resulting metabolites from the arachidonic acid pathway and histamine from mast cells may affect melanogenesis [ 14 ], thus resulting in PIH. No guarantees or warranties are made regarding any of the information contained herein. Am J Dis Child SRJ is a prestige metric based on the idea that not all citations are the same. Published online Jun 1. In Partial Unilateral Lentiginosis, small brown melanocytic nevi develop on one half of the body.
This way an alteration in the embryonic development before crest closure could be suggested as a cause, however, there is no alteration in the development [ 12 ]. Go to the members area of the website of the AEDV, https: Partial Unilateral Lentiginosis is a rare melanocytic condition that I occasionally encounter in both my The Woodlands dermatology and Conroe dermatology offices.