Dermoscopy of arteriovenous tumour: A morphological study of 39 cases

Abstract

Background/Objectives

Arteriovenous tumour is a distinct, benign, acquired vascular lesion that can be misdiagnosed.

Methods

A dermoscopic examination of 39 cases of arteriovenous tumours collected from four Spanish hospitals was performed to evaluate specific dermoscopic criteria and patterns.

Results

The most common structures found were vascular, 95% of cases (37/39); 90% (35/39) were non-arborising telangiectasia. All the lesions except two (95%) had a homogeneous pigmentation background that was red in 30 cases (77%), bluish-red in three (8%), brown in two (5%) and blue or multicoloured in one case each. Lacunae were seen in only three cases (8%). Non-arborising telangiectasia on a reddish background was identified in 72% of cases.

Conclusions

Dermoscopy is helpful in improving the diagnosis of arteriovenous tumours and allows the observer to differentiate them from other cutaneous lesions such as other vascular tumours, basal cell carcinomas and melanomas.

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Programmed cell death 1 blockade-induced cutaneous sarcoid-like epithelioid granulomas in advanced melanoma: A case report

Abstract

Sarcoidosis is a chronic, systemic inflammatory disorder of unknown etiology that is characterized by the formation of noncaseating granuloma in affected organs, most commonly the lung.¹ In pulmonary sarcoidosis patients, the T helper 1 (Th1) cytokine profile of CD4⁺ as well as CD8⁺ T cells was demonstrated in bronchoalveolar lavage fluid.² However, there has been no detailed description of a lymphocyte profile in cutaneous sarcoid-like epithelioid granulomas. Here, we report a case of sarcoid-like epithelioid granulomas induced by nivolumab in a patient with advanced melanoma and we performed functional lymphocyte analysis of the granuloma lesions. All studies were performed in accordance with the ethical principles of the Declaration of Helsinki.

This article is protected by copyright. All rights reserved.

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Mosaic NRASopathy n a child with giant melanocytic congenital naevus, epidermal hamartoma and bilateral nephroblastomatosis: clinical implication for follow-up

Abstract

Various nevoid proliferations result from postzygotic mutation in genes within the RAF/RAS/MAPK pathway, supporting the term "mosaic RASopathy"(1). Giant congenital melanocytic naevus (GCMN) and neurocutaneous melanosis are rare mosaic RASopathies mainly known to be at risk for the development of melanoma and skeletal anomalies are variably recorded (2,3).

This article is protected by copyright. All rights reserved.

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Upfront vs. no upfront neck dissection in primary head and neck cancer radio(chemo)therapy: Reply to Elicin et al.

Publication date: Available online 4 January 2018
Source:Radiotherapy and Oncology
Author(s): Daan Nevens, Fréderic Duprez, Katrien Bonte, Philippe Deron, Wouter Huvenne, Annouschka Laenen, Wilfried De Neve, Sandra Nuyts




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Neutrophilic superficial eccrine ductitis: Proposal of a new disease concept

Abstract

A 3-year-old Japanese boy presented with a 3-month history of itchy erythematous papules on his trunk and forearms, the histologic findings of which were characterized by predominantly neutrophilic inflammation within and around the eccrine sweat ducts and obliteration and disruption of the superficial eccrine sweat ducts. Although the skin disorder had some clinical and histopathologic similarity to miliaria and neutrophilic eccrine hidradenitis, it was ultimately conformed to be neither disorder. Based on this and a case report in the Japanese literature of a 1-year-old boy with erythematous eruptions whose clinical and histopathologic findings were similar to those in our case, we propose the skin disorder in our case, referred to as "neutrophilic superficial eccrine ductitis," as a unique entity.

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A young girl with severe cerebral fungal infection due to card 9 deficiency

Publication date: Available online 4 January 2018
Source:Clinical Immunology
Author(s): Pinar Gur Cetinkaya, Deniz Cagdas Ayvaz, Betül Karaatmaca, Rahsan Gocmen, Figen Söylemezoğlu, Wayne Bainter, Janet Chou, Talal A. Chatila, Ilhan Tezcan
Pattern recognition receptors (PRRs), receptors of the innate immune system, are important in interaction with pathogens. Caspase Recruitment Domain-containing protein 9 (CARD9), a member of PRRs, is an intracellular adaptor protein important in fungal defense. CARD9 deficiency causes a rare primary immunodeficiency (PID) characterized by superficial and deep fungal infections. We report a 17year-old female with a homozygous nonsense mutation in CARD9, who presented with severe cerebral fungal infection of the central nervous system. She was also found to have an heterozygous NLRP12 mutation, which may have had add-on effect on the severity of the infection.



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A young girl with severe cerebral fungal infection due to card 9 deficiency

Publication date: Available online 4 January 2018
Source:Clinical Immunology
Author(s): Pinar Gur Cetinkaya, Deniz Cagdas Ayvaz, Betül Karaatmaca, Rahsan Gocmen, Figen Söylemezoğlu, Wayne Bainter, Janet Chou, Talal A. Chatila, Ilhan Tezcan
Pattern recognition receptors (PRRs), receptors of the innate immune system, are important in interaction with pathogens. Caspase Recruitment Domain-containing protein 9 (CARD9), a member of PRRs, is an intracellular adaptor protein important in fungal defense. CARD9 deficiency causes a rare primary immunodeficiency (PID) characterized by superficial and deep fungal infections. We report a 17year-old female with a homozygous nonsense mutation in CARD9, who presented with severe cerebral fungal infection of the central nervous system. She was also found to have an heterozygous NLRP12 mutation, which may have had add-on effect on the severity of the infection.



http://ift.tt/2m0tZJS