The lichen planus follicularis tumidus was described by Belaich et al. in 1977, and we have found 13 cases published so far. We report two cases we have recently seen, one of them with multiple lesions on the head, and the other with a temporo-frontal lesion.
Cutaneous collagenous vasculopathy (CCV) is an idiopathic microangiopathy with characteristic histological findings. It was described in 2000, and 9 cases have since been described. Two women of 83 and 74 years consulted for long-standing telangiectasias. In case 1, they affected the limbs and trunk and in case 2 were located on the legs. Biopsies of these lesions showed dilated vascular structures whose walls were thickened due to deposition of eosinophilic hyaline material. The affected vessels were located in the superficial dermis in case 1, and in case 2 the reticular dermis was also affected. CCV is a microangiopathy of unknown etiology. Clinically it is indistinguishable from generalized essential telangiectasia and differs in its histology. CCV may be underdiagnosed, and some nonbiopsied cases of generalized essential telangiectasia may really be CCV. We contribute 2 new cases of this entity to help establish its clinical and epidemiological characteristics and make its etiology better known.
We cared for a patient with woolly-hair nevus (WHN) with hair of reduced diameter seen as oval shaped on transverse section. Scanning electron microscopy revealed a longitudinal canal along the length of the hair shaft. Although the association of WHN and epidermal nevus has been described previously, this report of their localization in the same site is, to our knowledge, the first in the literature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.