Lichen myxedematosus (LM) is an idiopathic cutaneous mucinosis; its classification dates
back to 1953, when Montgomery and Underwood distinguished 4 types of LM: a generalized …

Excessive hair shedding is a common and alarming phenomenon, usually complained
about by women. The disorder, named telogen effluvium (TE), bears several problems which …

A 35-year-old man reports itching, redness, and scaling in his scalp, eyebrows, and external
auditory canal. He has tried several over-the-counter dandruff shampoos, with only …

Although it is universally accepted that dihydrotestosterone causes baldness, how it does so
is not well understood. I propose that 3 mechanisms are at work: miniaturization by a …

Background & Aims: To better understand the role of small intestinal bacterial overgrowth
(SIBO) in rosacea, we aimed to assess the presence of SIBO in patients with rosacea and …

To elucidate the role of human herpesvirus (HHV)-6 and-7 (HHV-7) in pityriasis rosea (PR),
we measured their DNA load in plasma, peripheral blood mononuclear cells (PBMC), and …

The clinical aspects and the histologic features of cutaneous mucinoses have been
reviewed and their classification updated. Cutaneous mucinoses are divided into distinctive …

To explain why in alopecia areata the hair falls out in a particular area the hypothesis is
proposed that the area occurs as a stochastic event only in those subjects who, in a …

Pityriasis rosea is an acute, self-healing exanthem characterized by oval erythematous-
squamous lesions of the trunk and limbs, that usually spares face, scalp, palms, and soles …

New and relatively old types of vascular (capillary) proliferations in the skin have been
described or better categorized in the last few years. They include reactive …