A 32-year-old Filipino male managed as a case of acute myeloid leukemia presented with a 6-month history of generalized, red-brown papules. After chemotherapy, the patient was advised 30-minutes daily sun exposure as a form of natural phototherapy. On follow-up, most lesions flattened. This case demonstrates chemotherapy’s potential role in controlling the patient’s inflammatory state and using ultraviolet light therapy in the form of sunlight to manage generalized purpuric lichen nitidus.
Lichen Nitidus ; Dermoscopy ; Phototherapy

No abstract available.
Lichen Nitidus* ; Lichens*

No abstract available.
Lichen Nitidus* ; Lichens*

No abstract available.
Lichen Nitidus* ; Tacrolimus*

Lichen nitidus (LN) is an uncommon, usually asymptomatic cutaneous eruption characterized by the presence of multiple, small, flesh-colored papules. The epidemiologic and pathophysiologic characteristics of LN have not yet been defined. Furthermore, LN has rarely been described in association with other cutaneous diseases. We herein report 3 cases of LN associated with various cutaneous diseases, including lichen striatus, oral lichen planus, and psoriasis vulgaris.
Lichen Nitidus* ; Lichen Planus ; Lichen Planus, Oral ; Lichens ; Mouth ; Psoriasis

Disseminated and recurrent infundibulo-folliculitis is an infrequent entity of unknown etiology that was first described in 1968, by Hitch and Lund. Most patient reports have been on young black male adults. It is rarely reported in Asian, and there has been only 1 case reported in the Korean medical literature in the year 1984. The syndrome has been characterized as tiny uniform, skin-colored papules similar to 'goose-bumps' of skin. These papules predominantly involve the trunk and proximal extremities, and are usually accompanied by mild pruritus. In this report, we presented a 33-year-old man with a 10-year history of generalized skin-colored, follicular papules on the chest and back with intermittent pruritus. The clinical initial differential diagnosis included keratosis pilaris, lichen spinulosus, lichen nitidus, folliculitis, and disseminated and recurrent infundibulo-folliculitis. A histopathologic examination showed predominant mononuclear cell infiltration around the infundibular portion of hair follicles, follicular spongiosis and lack of hyperkeratosis. Herein, we reported a rare case of disseminated and recurrent infundibulo-folliculitis with typical clinical and histopathological findings in a 33-year-old Korean man.
Abnormalities, Multiple ; Adult ; Asian Continental Ancestry Group ; Darier Disease ; Diagnosis, Differential ; Extremities ; Eyebrows ; Folliculitis ; Hair Follicle ; Humans ; Keratosis ; Lichen Nitidus ; Lichens ; Male ; Pruritus ; Skin ; Thorax

Perforating lichen nitidus is an unusual variant of lichen nitidus. It is clinically characterized by umbilicated papules and histopathologically characterized by transepidermal elimination of inflammatory debris from granulomatous infiltrates. Most cases of perforating lichen nitidus are treated with topical corticosteroids, but long-term use of topical corticosteroids could provoke several side effects. Herein, we report a case of perforating lichen nitidus treated effectively and safely with topical tacalcitol ointment. We performed a dermoscopic examination for the perforating lichen nitidus lesion and found the characteristic "frogspawn" dermoscopic feature.
Adrenal Cortex Hormones ; Dermoscopy ; Dihydroxycholecalciferols ; Lichen Nitidus ; Lichens

Lichen planus is an unique, common inflammatory disorder that affects the skin, mucous membranes, nails and hair. Oral lichen planus is among the more common mucosal conditions with an unknown etiology. Lichen nitidus is an uncommon, usually asymptomatic cutaneous eruption that is characterized by the presence of multiple, small, flesh colored papules. Perforation in lichen nitidus is a rare phenomenon. Lichen nitidus is distinguished from lichen planus on both clinical and histologic grounds. However, the possibility that lichen nitidus represents a micropapular variant of lichen planus has never been definitively excluded. Herein, we report on a case of perforating lichen nitidus associated with oral lichen planus.
Hair ; Lichen Nitidus ; Lichen Planus ; Lichen Planus, Oral ; Lichens ; Mucous Membrane ; Nails ; Skin

Lichen nitidus (LN) is an uncommon chronic eruption of an unknown cause, and it is characterized by tiny, discrete, flesh-colored papules. The sites of predilection are the genitalia, trunk and extremities. Unilateral palmar involvement with pruritus is infrequent. We report here on a case of LN confined to the right palm, and the patient presented with multiple, pruritic, erythematous to flesh-colored, tiny papules and vesicles that mimicked pompholyx. The histopathological examination of a skin biopsy specimen showed the typical findings of LN.
Biopsy ; Eczema, Dyshidrotic ; Extremities ; Genitalia ; Humans ; Lichen Nitidus ; Lichens ; Pruritus ; Skin

Lichen nitidus is a rare chronic inflammatory disease that was first described by Pinkus in 1907. It is characterized by asymptomatic multiple minute, flesh-colored, shiny dome shaped papules that occur on the abdomen, chest, extremities and genitalia of children or young adults. This disorder is most often localized and only a few cases of generalized lichen nitidus have been reported. Because lichen nitidus tends to be asymptomatic and it spontaneously resolves within several years, it usually does not require treatment except in the symptomatic, persistent and generalized cases. We report here on a case of a 27-year-old woman who was diagnosed with lichen nitidus, and her condition was refractory to general treatment. She was successfully treated with the application of 0.03% tacrolimus ointment.
Abdomen ; Adult ; Child ; Extremities ; Female ; Genitalia ; Humans ; Lichen Nitidus ; Lichens ; Tacrolimus ; Thorax ; Young Adult