Extradigital glomus tumor: dermoscopic description and histopathological correlation.

Glomus tumors are rare benign neoplasms arising from the neuromyoarterial structure called glomus body. They present as angiomatous papules, soft and painful, especially to cold and pressure. In general, they are solitary and affect the extremities, located mainly the subungual bed. Extradigital lesions are rare and can constitute a diagnostic challenge. This is the report of a patient with an extradigital lesion on the left arm, and its dermoscopic aspects, including angiomatous lagoons circumscribed by a pale halo, a structure not previously described in the two reports of extradigital glomus tumor with dermoscopic features, found in the literature.

Dermoscopic Findings and the Clinicopathologic Correlation of Pigmented Purpuric Dermatosis: A Retrospective Review of 60 Cases.

BACKGROUND: Pigmented purpuric dermatosis (PPD) is known as a chronic recurrent eruption which usually presents with petechiae and pigmented macules on the lower extremities. Dermoscopy is a noninvasive diagnostic tool in identifying pigmented and vascular lesions, which can also be beneficial in the evaluation of PPD. OBJECTIVE: We aimed to analyze the common dermoscopic characteristics of PPD, and correlate those findings with the histopathologic features. Additionally, dermoscopic and pathological findings in this study population were compared with other similar studies from the literature review. METHODS: A retrospective analysis was performed using data of 60 patients who were diagnosed as PPD by skin biopsy and had dermoscopic examination. The pathologic analysis was performed by categorizing the pattern into lichenoid, perivascular, interface, and spongiotic subtype, and the dermoscopic assessment was performed by the three authors independently. RESULTS: In dermoscopy, 96.7% of the patients showed red globules and dots, followed by brownish patch, coppery-red pigmentation, and annular comma-like vessels. The pathologic pattern analysis revealed statistically significant association of lichenoid pattern with coppery red pigmentation, perivascular pattern with annular/comma-like vessels, and spongiosis pattern with reticular pigmented network and linear vessels. The interrater similarity test showed total kappa value of 0.811 which referred to "very good". CONCLUSION: In this study, the prevalence of dermoscopic features in Asian PPD patients was identified, which was similar with previous studies. The dermoscopic-pathologic correlation was found in four dermoscopic features. We suggest that dermoscopic examination is helpful in clinical diagnosis and pathological prediction of PPD.

Atrofia branca de Milian / Atrofie blanche

A vasculopatia livedoide é uma doença cutâneo-vascular que surge devido à oclusão trombogênica de vasos da derme. Apresenta-se por meio de máculas ou pápulas eritematosas e purpúricas, em membros inferiores, que podem levar à ulceração dolorosa crônica e recorrente. Com a evolução, pode haver cicatrização, o que leva ao aparecimento de áreas de fibrose e cicatrizes atróficas, irregulares e esbranquiçadas, dando nome à patologia. Relata-se o caso de uma paciente com vasculopatia livedoide de acometimento de membros inferiores. (AU)

Livedoid vasculopathy is a vascular skin disease resulting from thrombogenic occlusion of dermal blood vessels. It presents with erythematous, purpuric macules or papules on the lower limbs, which can lead to chronic and recurrent painful ulceration. With its progression, there may be scarring leading to the appearance of areas of fibrosis and atrophic, irregular, and whitish scars, which gave this name to the pathology. The case of a patient with livedoid vasculopathy affecting the lower limbs is reported. (AU)

Ophthalmologic alterations in cutis marmorata telangiectatica congenita: a series of cases / Alterações oftalmológicas na cutis marmorata telangiectásica congênita: uma série de casos

ABSTRACT Cutis marmorata telangiectasia congenita is a rare cutaneous vascular disorder that may be associated with different systemic manifestations like body asymmetry, cutaneous, ophthalmologic, vascular, and neurological manifestations. We describe ophthalmologic alterations found in three patients with cutis marmorata telangiectatica congenita highlighting the rare retinal manifestations.

RESUMO A Cutis marmorata telangiectasica congênita é uma desordem vascular cutânea rara que pode estar associada a diferentes manifestações sistêmicas, como assimetria corporal, alterações cutâneas, oftalmológicas, vasculares e neurológicas. Descrevemos alterações oftalmológicas encontradas em três pacientes com cutis marmorata telangiectasia congênita, destacando as raras manifestações retinianas.

Successful treatment of three cases of livedoid vasculopathy with rivaroxaban alone or in combination / 中华皮肤科杂志

Livedoid vasculopathy is a rare chronic ischemic necrotic skin disease caused by microvascular thrombosis in superficial vascular plexuses.Effective treatments are lacking.Efficacy of anticoagulants has been clinically proven in the treatment of this disease,but the administration route and adverse reactions limit their extensive application.The new oral factor Xa inhibitor rivaroxaban,which has many advantages,such as no need for coagulation monitoring,few adverse reactions and convenient oral administration,can be used in the prevention and treatment of thrombosis and post-thrombotic ulcers.In this article,3 patients with livedoid vasculopathy were treated with rivaroxaban alone or in combination,and satisfactory efficacy was obtained.

Granulomatous pigmented purpuric dermatosis: report of a Latin-American case with blaschkoid distribution.

Granulomatous pigmented purpuric dermatosis clinically manifests as hyperpigmented maculae and petechiae, predominantly on the lower extremities. Histopathologically, it is characterized by a lymphocytic infiltrate in the upper dermis, extravasated erythrocytes, and hemosiderin deposits. There is an infrequent variant called granulomatous pigmented purpuric dermatosis, which histologically is characterized by the presence of non-necrotizing granulomas associated with the classic findings of other pigmented purpuric dermatoses. It more frequently affects middle-aged women of Asian origin, and predominantly on the lower extremities. The authors present the case of a female patient with granulomatous pigmented purpuric dermatosis on the lower extremities with blaschkoid distribution.

Granulomatous pigmented purpuric dermatosis: report of a Latin-American case with blaschkoid distribution

Abstract Granulomatous pigmented purpuric dermatosis clinically manifests as hyperpigmented maculae and petechiae, predominantly on the lower extremities. Histopathologically, it is characterized by a lymphocytic infiltrate in the upper dermis, extravasated erythrocytes, and hemosiderin deposits. There is an infrequent variant called granulomatous pigmented purpuric dermatosis, which histologically is characterized by the presence of non-necrotizing granulomas associated with the classic findings of other pigmented purpuric dermatoses. It more frequently affects middle-aged women of Asian origin, and predominantly on the lower extremities. The authors present the case of a female patient with granulomatous pigmented purpuric dermatosis on the lower extremities with blaschkoid distribution.

Cutaneous collagenous vasculopathy: light and transmission electron microscopy

Abstract Cutaneous collagenous vasculopathy is a rare acquired idiopathic microangiopathy characterized by progressive development of diffuse asymptomatic telangiectasias and histologically by accumulation of collagen type IV around the affected vessels. It is diagnosed by its clinical history, confirmed by light microscopy with collagen-specific immunostaining. We report a case of a patient with extensive acquired telangiectasias on the left arm, clinically resembling unilateral nevoid telangiectasia. Dilated blood vessels with thickened walls were observed in the dermis. Immunohistochemistry with collagen IV antibodies revealed marked collagen deposition around the vessels, confirming the diagnosis. Transmission electron microscopy observed duplicate and triplicate vascular basal membrane associated with deposition of amorphous material around the membranes.

Verrucous hemangioma and histopathological differential diagnosis with angiokeratoma circumscriptum neviforme

Abstract: Verrucous hemangioma is a rare vascular skin disorder with an immune profile similar to vascular neoplasms, but with behavior and evolution of vascular malformations. Its main differential diagnosis is angiokeratoma circumscriptum neviforme, with an almost indistinguishable clinical presentation because both diseases appear as erythematous patches that evolve to violaceous plaques, becoming scaly and even verrucous, most commonly affecting the lower limbs. Histopathology is crucial for the correct diagnosis: while in angiokeratoma the vascular alterations are limited to the papillary dermis, verrucous hemangioma extends deep into the dermis, reaching the subcutaneous tissue.

Vascular structures in dermoscopy

AbstractDermoscopy is an aiding method in the visualization of the epidermis and dermis. It is usually used to diagnose melanocytic lesions. In recent years, dermoscopy has increasingly been used to diagnose non-melanocytic lesions. Certain vascular structures, their patterns of arrangement and additional criteria may demonstrate lesion-specific characteristics. In this review, vascular structures and their arrangements are discussed separately in the light of conflicting views and an overview of recent literature.

Angioma serpiginosum: report of an unusual acral case and review of the literature

We report the case of a 35-year-old woman with deep-red asymptomatic macules on the plantar and dorsal skin of the right great toe. Histopathologic fi ndings were compatible with Angioma serpiginosum. Immunohistochemical stains for estrogens and progesterone receptors were negative. Dermoscopy showed an erythematous parallel ridge pattern with double rows of irregular dots and globules. We report an unusual case of angioma serpiginosum with acral volar skin involvement. The dermoscopic features described may aid in the diagnosis of AS in this specifi c skin area. Acral volar skin involvement must be included in the clinical spectrum of Angioma serpiginosum and in the differential diagnosis of acral vascular lesions.

Livedoid vasculopathy as a marker of systemic disease: report of two cases

The livedoid vasculopathy is an obstructive vascular process of etiology not yet fully known, being possibly associated with several prothrombotic events. It is clinically characterized by the presence of painful and recurring purpuric lesions, which usually suffer ulceration and evolve with formation of white atrophic scars usually located in the lower limbs. Two cases are here reported of painful ulcerated lesions on the lower limbs, in which the identification of VL enabled the diagnosis of systemic diseases.

Syndrome in Question

Rendu-Osler-Weber Syndrome also known as Hereditary Hemorrhagic Telangiectasia is a rare systemic fibrovascular dysplasia, with dominant autosomal inheritance. It is characterized by recurrent epistaxis, mucocutaneous telangiectasia, visceral arteriovenous malformation and positive family history. There may be hematologic, neurologic, dermatologic and gastrointestinal complications. Therapy is supportive and aimed at preventing complications. In this article we report a case of Rendu-Osler-Weber in a 64 year-old man, with history of mucocutaneous telangiectasia since the third decade of life, recurrent epistaxis, positive family history and vascular ectasia in the gastrointestinal tract.

Livedoid vasculopathy associated with peripheral neuropathy: a report of two cases / Vasculopatia livedoide associada a neuropatia periferica: relato de dois casos

Livedoid vasculopathy (LV) is a chronic and recurrent disease consisting of livedo reticularis and symmetric ulcerations, primarily located on the lower extremities, which heal slowly and leave an atrophic white scar ("atrophie blanche"). Neurological involvment is rare and presumed to be secondary to the ischemia from vascular thrombosis of the vasa nervorum. Laboratory evaluation is needed to exclude secondary causes such as hyper-coagulable states, autoimmune disorders and neoplasms. We present two patients with a rare association of peripheral neuropathy and LV, thereby highlighting the importance of a multidisciplinary approach to reach the correct diagnosis. .

Vasculopatia livedoide é uma doença crônica e recorrente caracterizada por livedo reticular e úlceras simétricas nos membros inferiores, que cicatrizam e deixam uma cicatriz branca atrófica ("atrophie blanche"). Envolvimento neurológico é raro e está provavelmente associado a isquemia pela trombose dos vasa nervorum. Avaliação laboratorial é indicada com o intuito de excluir causas secundárias como estados de hipercoagulabilidade, doenças autoimunes e neoplasias. Apresentamos dois pacientes com uma rara associação de vasculopatia livedoide com neuropatia periférica, enfatizando a importância de uma abordagem multidisciplinar na busca do diagnóstico correto.

Are the spider nngiomas skin markers of hepatopulmonary syndrome? / Sao as aranhas vasculares marcadores cutaneos da sindrome hepatopulmonar?

Context Hepatopathies can significantly influence both veins and arteries, these changes may cause some cutaneous stigmas, such as spider angioma (SA) and some systemic vascular changes, such as those observed in hepatopulmonary syndrome (HPS). Based on this common pathophysiological root we can assume that the SA can be skin markers of HPS. Objective The objective of this study is to assess whether there is a relationship between the presence of SA and HPS. Methods Records of 40 patients with liver cirrhosis who underwent contrast echocardiography were evaluated, in which we researched the description of SA, physical examination, and other clinical and laboratory data. For diagnosis of HPS we use these signs of the disease: presence of liver disease (cirrhosis in the case), abnormalities in gas exchange by arterial blood gases, and evidence of pulmonary vasodilations by the contrast echocardiography. Results The SA were found in 21/40 (52.5%) patients and hepatopulmonary syndrome in 9/40 (22.5%). The HPS was observed in 8/21 (38.1%) of patients with SA and 1/19 (5.3%) patients were without this sign (P<0.01). We found no statistically significant difference between the SA and the presence of HPS with sex or age. Patients with SA had a higher hypoxemia [PaO2 84.8 ± 11.5 mmHg and 19.8 ± 14.7 mmHg alveolar-arterial gradient of oxygen (AAG)] than those without SA (PaO2 90.8 ± 10.7 mmHg and 10.9 ± 11.7 AAG mmHg) (P<0.05). Conclusion Our findings show a correlation between the presence of SA and HPS, suggesting that the SA may be cutaneous markers of HPS. .

Contexto As hepatopatias podem influenciar de forma considerável tanto as veias quanto as artérias, dessas alterações podem surgir alguns estigmas cutâneos, como as aranhas vasculares (AV) e algumas alterações vasculares sistêmicas, como as observadas na Síndrome Hepatopulmonar (SHP). Baseados nessa possível raiz fisiopatogênica comum, podemos supor que as AV sejam marcadores cutâneos da SHP. Objetivo Avaliar se há relação entre a presença das AV e a SHP. Métodos Foram avaliados os prontuários de 40 pacientes com cirrose hepática submetidos a ecocardiografia com contraste (ECC), nos quais pesquisamos a descrição de AV, no exame físico, e outros dados clínicos e laboratoriais. Para diagnóstico da SHP utilizamos os seguintes critério: presença de hepatopatia (no caso cirrose), de anormalidades nas trocas gasosas pela gasometria arterial, e evidências de vasodilatações pulmonares pela ecocardiografia com contraste. Resultados As AV foram encontradas em 21/40 (52,5%) pacientes e a síndrome hepatopulmonar em 9/40 (22,5%). A SHP foi observada em 8/21 (38,1%) dos pacientes com AV e em 1/19 (5,3%) dos pacientes sem esse sinal (P<0,01). Não encontramos diferença estatisticamente significativa entre a presença das AV e da SHP com sexo ou faixa etária. Pacientes com AV apresentaram maior hipoxemia (PaO2 84,8 ± 11,5 mmHg e GAA 19,8 ± 14,7 mmHg) que os sem AV (PaO2 90,8 ± 10,7 mmHg e GAA 10,9 ± 11,7 mmHg) (P<0,05). Conclusão Nossos achados mostram correlação entre a presença das AV e a SHP, sugerindo que as AV possam ser marcadores cutâneos da SHP. .

Degos' syndrome complicated by bowel perforation: focus on radiological findings.

We describe a 50-year-old man who first presented with multiple skin lesions which were characteristic of Degos' syndrome. The patient developed multiple episodes of abdominal pain. Some episodes resolved with conservative management, for others he underwent urgent operations for bowel perforations. The patient subsequently underwent extensive small bowel resection, but further systemic deterioration ensued and he died. The imaging findings of Degos' syndrome and the implications of pneumatosis intestinalis and pneumoperitoneum are discussed.

Acroangiodermatite (pseudossarcoma de Kaposi): uma condição raramente reconhecida. Um caso na planta do pé associado a insuficiência venosa crônica / Acroangiodermatitis (pseudo-Kaposi sarcoma): a rarely-recognized condition. A case on the plantar aspect of the foot associated with chronic venous insufficiency

A acroangiodermatite ou pseudossarcoma de Kaposi é entidade angioproliferativa incomum relacionada a insuficiência venosa crônica, fístulas arteriovenosas, membros paralisados, cotos de amputação, síndromes vasculares e condições trombóticas. Apresenta-se, em geral, como máculas, pápulas ou placas purpúricas no dorso dos pés (especialmente hálux) e maléolos. Relatamos um caso de acroangiodermatite afetando a região plantar, por dois anos sem diagnóstico, para o qual a coloração histológica por hematoxilina-eosina e a marcação imuno-histoquímica com CD34 foram decisivas. A paciente tinha insuficiência venosa crônica e a lesão respondeu bem ao uso de bandagens elásticas e repouso com a perna elevada.

Acroangiodermatitis, often known as pseudo-Kaposi sarcoma, is an uncommon angioproliferative entity related to chronic venous insufficiency, arteriovenous fistulae, paralysed limbs, amputation stumps, vascular syndromes and conditions associated with thrombosis. It presents most frequently as purple macules, papules or plaques in the dorsal aspects of the feet, especially the toes, and the malleoli. We report a case of acroangiodermatitis in the plantar aspect of the foot, misdiagnosed for two years, in which haematoxylin-eosin hystopathological stain and immunolabeling with CD34 histochemistry examination were decisive for diagnosis. Patient had chronic venous insufficiency. The lesion responded well to the treatment with a combination of leg elevation and compression.