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This review discusses spatial and temporal patterns in animals, focusing on skin appendage organs, but provides no new research findings.

The modified S pattern for scalp reduction is effective for removing more bald scalp and hiding scars in hair restoration.

This study reports five cases of congenital triangular alopecia featuring a central island of short terminal hair, with the cause remaining unknown.

This report describes an 8-year-old male with trichotillomania, confirmed by trichoscopy showing characteristic hair damage and patterns.

This letter discusses congenital triangular alopecia (TTA), a non-scarring hair loss condition often seen in children, without reporting new clinical findings.

In this study, a dog with canine pattern alopecia showed improved multifocal alopecia and general hair regrowth after 3 months of melatonin treatment.

This abstract suggests that specific trichoscopic features like black dots, coiled hair, and trichoptilosis may help differentiate trichotillomania from patchy alopecia areata.

This study found that trichoscopic features like exclamation mark hairs and angulated hairs were more indicative of alopecia areata in an Asian population, while features like broken hairs of different lengths and flame hairs were more common in trichotillomania.

This case report documents a rare instance of triangular temporal alopecia in an adult woman, emphasizing the importance of correct diagnosis to avoid unnecessary treatments, and reviews the literature on TTA.

This article discusses temporal triangular alopecia, emphasizing the need for increased awareness to prevent misdiagnosis and ineffective treatment, but reports no new clinical results.

A simple method can show hair's surface pattern.

This case report identifies a new type of hair matrix tumor called "rippled pattern trichomatricoma," distinguished by its unique cell arrangement and differentiation features.

In this study, trichoscopy was identified as a useful non-invasive tool to aid in the diagnosis of female pattern hair loss, with peri pilar sign and hair diameter variability being common findings.

This case series reports three novel and atypical morphological patterns of alopecia areata, termed the central sparing, paw, and punctate patterns, highlighting their importance for dermatologists in improving diagnosis and management of the condition.

This case report identifies a 23-year-old man with congenital triangular alopecia, a non-scarring alopecia characterized by preserved follicles and vellus hair, for which unnecessary interventions should be avoided.

This article discusses triangular temporal alopecia, highlighting dermoscopy's role in diagnosis and the limited therapeutic options, without reporting new clinical results.

This review provides a synopsis of 53 cases of temporal triangular alopecia, noting its frequent detection in early childhood and potential association with congenital diseases, but it reports no new clinical findings.

The study found that Temporal Triangular Alopecia often starts in early childhood, mainly affects the left side of the scalp, and has no effective treatment except surgery.

This study found that trichoscopic examination can effectively differentiate between alopecia areata and trichotillomania, as specific features such as black dots and exclamation marks favor alopecia areata while hair breaking at various lengths and several unique patterns are exclusive to trichotillomania.

This study observed that a targetoid polycyclic concentric hair regrowth pattern appeared in some male patients with alopecia areata following treatment, indicating a positive sign of recovery despite unclear etiopathogenesis.

This article discusses trichotillomania and trichoteiromania, focusing on their clinical presentation, main trichoscopic features, and similarities in hair loss patterns but reports no new research findings.

This report suggests a possible association between temporal triangular alopecia and sebaceous nevus, and identifies a pinkish background as a new trichoscopic finding for TTA.

This study found that among male hair transplant patients, most had a single crown hair whorl pattern, which was more often located centrally on the scalp compared to dual or undetectable patterns.

This study revealed that different coat patterns in cats and cheetahs are related to variations in the aminopeptidase Q gene and endothelin-3 expression, which affects pigment production.

This study in Chennai, India, found that while some trichoscopic patterns are specific, many overlap across different scalp dermatoses, highlighting the importance of dermatologists staying informed about the latest findings.

Temporal triangular alopecia is a non-scarring hair loss seen in some Asian children.

In this case study, an 18-year-old woman's triangular alopecic patch diagnosed as temporal triangular alopecia was considered non-progressive and had no impact on her quality of life, so no treatment was initiated.

This study observed that temporal triangular alopecia in infants presents with distinct clinical and dermatoscopic features, indicating the usefulness of dermatoscopy for diagnosis and differential diagnosis.

This study found that trichoscopy can be a helpful, noninvasive tool for identifying specific patterns that correlate with the clinical activity and severity of alopecia areata, enhancing its diagnosis and monitoring.

This study observed a significant reduction in the number of hair follicles with a high proportion in catagen or telogen phase, along with visible vertical columns of connective tissue in the histopathologic examination.