A case of unilateral blaschkoid lichen planus pigmentosus

Polat, Mualla; Tuman, Bengü; Özyalvaçlı, Gülzade

doi:10.1590/abd1806-4841.20175664

Cited by 7 publications

(10 citation statements)

References 6 publications

(13 reference statements)

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“…Vineet et al [13] reported another case of unilateral Blaschkoid LPP in a 48-year-old male patient with lesions lateralizing to the right side of his body that followed the lines of Blaschko in a linear and zosteriform pattern. Polat et al [14] reported another case of unilateral Blaschkoid LPP in a female patient who had been using levothyroxine and levetiracetam for 8 years to manage hypothyroidism and epilepsy. In contrast, our patient had no history of systemic disease and did not use any medication.…”

Section: Discussionmentioning

confidence: 99%

Unilateral Lichen Planus Pigmentosus with Blaschko’s Line Distribution: A Case Report

Almudimeegh¹,

Habib²,

Alsuhaibani³

et al. 2023

Case Rep Dermatol

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Lichen planus pigmentosus (LPP) is a distinctive variant of lichen planus described for the first time in 1974. A wide range of presentations and distribution patterns have been reported, mainly presenting as dark brown hyperpigmented macules and patches, typically involving sun-exposed areas such as the face, neck, and flexural folds. It is more common in dark-skinned patients with a female predominance. Infrequently, LPP may present as a Blaschkoid distribution, with only a few cases reported in the medical literature. We report an unusual case of LPP that developed with a unilateral Blaschkoid distribution on the left side of the trunk in a 32-year-old female following weight reduction surgery.

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Section: Discussionmentioning

confidence: 99%

Unilateral Lichen Planus Pigmentosus with Blaschko’s Line Distribution: A Case Report

Almudimeegh¹,

Habib²,

Alsuhaibani³

et al. 2023

Case Rep Dermatol

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“…It presents as slate grey to dark brown pigmented macules involving mainly the head and neck or the trunk, flexures, and extremities [7]. Lichen planus pigmentosus can follow linear, zosteriform, segmental, and rarely blaschkoid patterns and had been reported as early as 10 years of age [8][9][10][11].…”

Section: Discussionmentioning

confidence: 99%

Positive Antinuclear Antibody and Blaschkoid Lichen Planus Pigmentosus

Al-Balbeesi¹

2022

Cureus

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Lichen planus pigmentosus is a rare variant of lichen planus. It is an acquired pigmentary disorder of unknown etiology. It is characterized by dark brown and slate gray macules and patches. The nails, scalp, and oral mucosa are usually spared, unlike lichen planus. Lichen planus pigmentosus commonly involves the head and neck region as well as intertriginous areas such as the axillae, inframammary and inguinal regions. It can be associated with autoimmune diseases, endocrinopathies, and other variants of lichen planus such as fibrosing alopecia of the scalp. Variable clinical patterns of lichen planus pigmentosus including zosteriform, linear, and segmental had been published. Histopathologically, it is characterized by hyperkeratosis of the epidermis, hypergranulosis, variable degrees of lichenoid infiltration depending on the age of the lesion, and prominent melanin incontinence. Recent updates on erythema dyschromicum perstans that were considered similar to lichen planus pigmentosus, concluded that they could be differentiated on clinical bases as well as histopathology. Epidermal hyperkeratosis, hypergranulosis, apoptotic cells, lichenoid dermatitis, periappendageal infiltrate, and fibrosis with marked superficial dermal melanin incontinence aid to differentiate lichen planus pigmentosus from erythema dyschromicum perstans. During embryogenesis, cells migrate and follow developmental lines named after Blaschko, a German dermatologist, who first noted them. Blaschko's lines (BL), do not follow neural, vascular, or lymphatic pathways. They appear as V-shaped on the back, S-shaped on the abdomen, and linearly on limbs. We report a case of lichen planus pigmentosus over BL that is a rare presentation of the disease and associated positive antinuclear antibody (ANA) without overt manifestations of any connective tissue disease.

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“…Variants of lichen planus pigmentosus include linear, inverse, and paraneoplastic . The linear pattern of lichen planus pigmentosus is rarely encountered but may be either blaschkoid or dermatomal in form . This unique presentation may contribute to better understanding of the etiology, as the blaschkoid distribution may reflect the underlying cutaneous mosaicism that renders those cells more susceptible to an insult that results in lichen planus pigmentosus …”

Section: Discussionmentioning

confidence: 99%