DP12 Clinicopathological correlation in multiple telangiectasia

Abstract A 34-year-old man presented with patches that had developed progressively over his trunk and abdomen over the preceding 4 years. Apart from their appearance they were asymptomatic. As the lesions were in covered areas of his body and none were easily visible, he was not actively seeking any treatment. On examination he had macular annular lesions, each between 8 and 20 mm in diameter present on the flanks, trunk and abdomen. Close inspection aided by dermoscopy showed a central nonentropic and nonscarred clear area with telangiectatic vessels marking the periphery of each lesion. He had approximately 40 lesions in total. He was otherwise well without any significant past medical history and took no regular medication. An incisional biopsy was performed of one of the lesions, which showed superficial dermal capillary proliferation with superficial and mid-dermal perivascular lymphohistiocytic chronic inflammation. The features were consistent with acquired annular telangiectasia. No features of cutaneous collagenous vasculopathy were evident. The clinical and dermoscopic features were identical to a recently described condition called progressive annular telangiectasia. Only one previous case has been reported, from Spain (García-Martínez P, Gomez-Martin I, Lloreta J, Pujol RM. Multiple progressive annular telangiectasias: a clinicopathological variant of cutaneous collagenous vasculopathy? J Cutan Pathol 2017; 44: 982–5). The pathology differed in our case in that peritelangiectatic collagen deposition was not evident; features of cutaneous collagenous vasculopathy were noted in the previous report. This is a highly unusual but apparently benign but slowly progressive condition. The previous case had some clinical but no pathological features of Degos atrophic papulosis. Progressive multiple telangiectasias can be a manifestation of several disorders. The aetiopathogenic mechanisms such as in our case remain to be elucidated, although its clinical course is suggestive of a benign pathology. In such cases clinicopathological correlation is required given the peculiarities of the clinical findings. If treatment is desired for cosmesis, treatment of a test area with a vascular laser may be offered.