Agminate lichenaureusLichenaureus is a rare variant of pigmented purpura, with a chronic and benign course. It is generally asymptomatic and often occurs in the lower limbs, presenting as erythematous brownish, coppery or golden macules and/or papules. The diagnosis is based on clinical and histopathological findings. The dermatoscopic pattern has been considered a useful tool in diagnosis presumption. We describe a case with a confluent morphological pattern, called agminate lichenaureus.
Dermoscopy of lichenaureusLichenaureus (also called "lichen purpuricus") is an uncommon subtype of pigmented purpuric dermatosis. Clinically characterized by rust macules, papules or plaques, it is a chronic disease which more often affects young adults and is localized mainly on the lower extremities. The diagnosis is made on the basis of clinical and histopathological features. Dermoscopy
. The female: male ratio was 1.3 : 1, and the median age at diagnosis was 8.8 years (IQR, 5.7-12.9). Median follow-up was 7.13 months (IQR, 3-17.4). The most common PPD subtypes were lichenaureus (43%) and Schamberg (34%). Fifty-three (52%) patients had evaluable follow-up documentation via their medical record or phone questionnaire. Twenty-eight patients were treated with vitamin C or rutoside
of drugs, including non-steroidal anti-inflammatory agents, sedatives, antihypertensives, drugs with antihistaminic properties and lipid-lowering agents.[6] Cases associated with sildenafil and isotretinoin have been reported.[7, 8] Lichenaureus may be associated with trauma.Types of pigmented purpuric dermatosesSchamberg's diseaseSchamberg's disease is the most common form of pigmented purpura or red papules or patches which may either itch or be asymptomatic.The lesions frequently occur bilaterally on the lower limbs, although can be unilateral and may affect the trunk and upper limbs.[11]Unlike the other forms of pigmented purpuric eruptions, the lesions of lichenaureus may also occur in a dermatomal distribution, or can follow the distribution of veins or arteries.It is thought
telangiectodes (Majocchi disease), [1] lichenaureus, itching purpura, eczematidlike purpura of Doucas and Kapetanakis, and the pigmented purpuric lichenoid dermatosis of Gougerot and Blum. [2, 3] Many consider itching purpura and eczematidlike purpura to be variants of Schamberg disease.Next: PathophysiologyThe etiology is unknown. Several cofactors have been reported that appear to influence disease in the literature, implying a genetic cause in a minority of patients.Previous Next: EpidemiologyFrequencyUnited StatesPigmented purpuric dermatoses are common.InternationalDuring a 10-month period, the author's United Kingdom hospital-based dermatology practice, which serves a population of 300,000 persons, identified only 10 such cases. Five cases were diagnosed as having lichenaureus, and the remainder had
. Pediatr Dermatol. 2009 Jan-Feb. 26(1):93-5. [QxMD MEDLINE Link]. 18. Zaballos P, Puig S, Malvehy J. Dermoscopy of pigmented purpuric dermatoses (lichenaureus): a useful tool for clinical diagnosis. Arch Dermatol. 2004 Oct. 140(10):1290-1. [QxMD MEDLINE Link]. 19. Suh KS, Park JB, Yang MH, Choi SY, Hwangbo H, Jang MS. Diagnostic usefulness of dermoscopy in differentiating lichen frequently affected than women. If the lesions are pruritic, then the term itching purpura is sometimes used. Early cutaneous T-cell lymphoma, purpuric clothing contact dermatitis, and drug hypersensitivity reactions should be considered in the differential diagnosis. * * Lichenaureus is the name given to localized pigmented purpuric dermatitis or capillaritis. In this patient, the skin on the extensor
telangiectodes (Majocchi disease), [1] lichenaureus, itching purpura, eczematidlike purpura of Doucas and Kapetanakis, and the pigmented purpuric lichenoid dermatosis of Gougerot and Blum. [2, 3] Many consider itching purpura and eczematidlike purpura to be variants of Schamberg disease.Next: PathophysiologyThe etiology is unknown. Several cofactors have been reported that appear to influence disease in the literature, implying a genetic cause in a minority of patients.Previous Next: EpidemiologyFrequencyUnited StatesPigmented purpuric dermatoses are common.InternationalDuring a 10-month period, the author's United Kingdom hospital-based dermatology practice, which serves a population of 300,000 persons, identified only 10 such cases. Five cases were diagnosed as having lichenaureus, and the remainder had
. Pediatr Dermatol. 2009 Jan-Feb. 26(1):93-5. [QxMD MEDLINE Link]. 18. Zaballos P, Puig S, Malvehy J. Dermoscopy of pigmented purpuric dermatoses (lichenaureus): a useful tool for clinical diagnosis. Arch Dermatol. 2004 Oct. 140(10):1290-1. [QxMD MEDLINE Link]. 19. Suh KS, Park JB, Yang MH, Choi SY, Hwangbo H, Jang MS. Diagnostic usefulness of dermoscopy in differentiating lichen frequently affected than women. If the lesions are pruritic, then the term itching purpura is sometimes used. Early cutaneous T-cell lymphoma, purpuric clothing contact dermatitis, and drug hypersensitivity reactions should be considered in the differential diagnosis. * * Lichenaureus is the name given to localized pigmented purpuric dermatitis or capillaritis. In this patient, the skin on the extensor