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This case report describes alopecia universalis-like hair loss occurring in two patients with cutaneous T cell lymphoma, providing clinical, dermoscopic, and pathologic features to help differentiate it from alopecia areata universalis.

This study observed that aging leads to significant structural and biological changes in the scalp's hair follicle environment in women, which may affect hair growth.

This study describes permanent scalp alopecia in patients receiving chemotherapy, radiation, or both, and highlights the need for further research to identify causative factors and mitigation strategies.

This study found that contrast enhanced phototrichogram (CE-PTG) significantly improved detection of various hair types and growth stages in androgenetic alopecia compared to standard PTG and was comparable to biopsy analysis.

This article reviews androgenetic alopecia and its underlying mechanisms, highlighting genetic and androgen factors in its onset, and does not report new research results.

This review discusses the natural progression of androgenetic alopecia and potential factors influencing its long-term prognosis, reporting no new clinical results.

This study found that hair loss in an Olmsted syndrome mouse model with a Trpv3 mutation was linked to premature keratinocyte maturation, affecting hair follicle structure and function.

This review discusses the histological features and diagnostic challenges of alopecia areata and emphasizes the need for genetic research to develop future therapeutics; it reports no new clinical findings.

This study found that topical formononetin treatment promoted hair regrowth in mice by normalizing hair follicle size and inhibiting apoptosis-related pathways.

In this study, a square pulse, low-fluence IPL device used at home significantly reduced terminal hair count by 87% six months post-treatment, with evidence of hair miniaturization similar to professional laser treatments.

This article discusses inflammatory perifollicular fibrosis and alopecia but provides no new research findings.

Some men can have female pattern baldness without hormonal abnormalities or signs of feminization.

The study found that balding scalps have more thin hairs and larger oil glands, which might contribute to skin conditions related to hair loss.

This article reviews the foundational tenets of hair restoration and emphasizes the importance of adapting techniques for different ethnic populations, but reports no new clinical results.

This case report describes a 22-year-old woman who developed persistent, non-scarring hair loss and premature ovarian failure following a myeloablative umbilical cord transplant for acute myeloid leukemia.

Congenital triangular alopecia can occur outside the typical fronto-temporal region.

This study found that women with female pattern hair loss had significant hormonal imbalances, specifically involving adrenal androgens, suggesting these may play a central role in the condition's development.

Low androgen levels can still cause female pattern hair loss.

This study found that androgenetic alopecia can affect the occipital region in men with advanced stages of the condition.

This case report describes a 45-year-old woman with diffuse nonscarring alopecia characterized by hair thinning, increased catagen/telogen follicles, and mild inflammatory infiltrate, highlighting the diagnostic findings via scalp dermoscopy and biopsy.

This document includes a brief professional profile of Dr. Ralf Paus but presents no research findings or study results.

Examining scalp biopsies in different ways helps better diagnose hair loss types.

This study found that hair mass index can effectively link hair productivity with clinical scalp coverage perception, suggesting its potential usefulness in diagnosing hair loss patterns and responses to treatment.

This study found that transverse sections of scalp biopsies, particularly looking at the anagen:non-anagen hair ratio and presence of pigment casts, effectively distinguish alopecia areata from androgenetic alopecia.

In this study, the authors compared trichoscopy findings for different forms of diffuse non-cicatricial alopecia in females and suggested that trichoscopy might often replace the need for histopathological confirmation, reserving biopsies for more uncertain cases.

A hairless patch on a boy's scalp from birth injury improved with minoxidil treatment.

The researchers noted that cell therapy using dermal papilla cells may be a future strategy for treating androgenetic alopecia.

This study identified two distinct trichoscopic patterns in the mid-frontal scalp of patients with frontal fibrosing alopecia who also display clinical features of androgenetic alopecia.

This study found that the cross-section trichometer (HairCheck device) can accurately and sensitively measure hair mass index changes, offering a convenient tool for assessing hair density and diameter in patients with alopecia.

This article discusses modern hair restoration surgery techniques, the concept of follicular units, and preoperative evaluation considerations, but it reports no new clinical results.