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This paper discusses various histologic features to distinguish types of alopecia and reports no new clinical findings.

In this study, key histologic features such as mucinous perifollicular fibroplasia were identified to aid in the diagnosis of lichen planopilaris.

This study suggests that hair loss in Chesapeake Bay retrievers is a breed-specific syndrome characterized by unique histological features and abnormal steroid production, possibly influenced by familial factors.

This case report describes the clinical and diagnostic features of a mare with mammary lymphoma associated with anaemia and pruritus.

This study highlights how examining hair histology under a microscope helps forensic analysts identify animal species by distinguishing specific microscopic features, which supports accurate reference database creation and aids crime scene investigations.

This study describes a newly observed "inflammatory vellus involvement" pattern in early frontal fibrosing alopecia, which may lead to misdiagnosis due to the absence of typical histological features.

This article reviews various types of alopecia, their diagnostic features, and patterns, but presents no new clinical findings; the authors discuss multiple mechanisms and classification challenges.

This study observed that fibrosing alopecia in a pattern distribution shows varied histological features and may resemble lichen planopilaris with initial diffuse distribution, potentially leading to scarring alopecia.

This report describes a unique case of linear lichen planus pigmentosus on the face with histological features of lichen planopilaris, which has not been documented before.

This study found that limb hair loss in frontal fibrosing alopecia is inflammatory and permanent, but lacks the classic scarring features seen in scalp alopecia, prompting potential misdiagnosis as alopecia areata.

This study suggests that immunohistochemistry of keratin and involucrin expression can aid in distinguishing malignant trichilemmoma from other tumors previously diagnosed as such.

This study found that dermoscopy can identify distinctive features in canine pattern alopecia, such as hair shaft thinning and pigmentation patterns, which may aid in diagnosing this and potentially other skin disorders.

In this study, trypsin digestion was found to be a faster and more efficient method than the explant technique for extracting bulge-derived keratinocytes from adult scalp biopsies.

In this study, dogs with hair cycle disorders, especially those with alopecia X, showed a significant increase in the number of kenogen follicles, suggesting impaired induction of new hair growth phases.

This study found that dogs with dermatitis exhibited specific histological skin changes, such as hyperkeratosis and inflammatory cell infiltration, and showed increased leukocyte counts compared to non-dermatitis dogs.

This study found that in Pomeranian dogs with alopecia X, dermoscopic evaluations can supplement diagnoses, and transverse skin biopsy sections better assess hair follicle density and identify growth arrest phases compared to longitudinal sections.

This review discusses fibrosing alopecia in a pattern distribution and highlights diagnostic features, but reports no new clinical results; the authors emphasize the value of trichoscopy and histology in diagnosis.

This review outlines the mechanisms, clinical features, and management strategies for alopecia areata and presents no new experimental findings.

This study found that anti-Ku-positive patients exhibit heterogeneous muscle features, primarily showing a myositis pattern with necrotizing fibers and vacuolar changes, and suggests autophagy may play a significant role in their pathogenesis.

This study describes tumor necrosis factor inhibitor-associated psoriatic alopecia, highlighting the distinctive histologic feature of sebaceous lobule atrophy, which is potentially reversible and helps differentiate it from idiopathic psoriatic alopecia.

This study found that the progression of fetal skin development, marked by key features like the appearance of hair follicles and eccrine sweat glands, can help determine fetal age and predict congenital skin diseases.

In this study, a ferret with multiple health issues was diagnosed with a malignant apocrine gland adenocarcinoma on the prepuce, highlighting the aggressive nature of such tumors in this species and suggesting further investigation into cytologic features could provide insights into tumor behavior.

This study reports that hyperaesthetic leucotrichia primarily affects Arabian and American paint horses, occurring mainly in summer, with histological differences from erythema multiforme despite some shared features.

In this study, cicatricial alopecias were classified by inflammatory cell type and the researchers highlighted that primary cicatricial alopecia's exact causes remain unknown, accounting for 6% of all hair diseases despite its unclear prevalence.

This report describes a case of primary cutaneous follicle centre cell lymphoma presenting as hair thinning on the scalp, which is not a recognized feature of the condition.

This study observed that trichoscopic changes associated with EGFRI treatment include pili torti and asymmetric hyperpigmented fusiform widening, along with dermoscopic skin manifestations such as scale and branching vessels.

In this study, researchers found that mogamulizumab-associated rashes and alopecia are common in patients treated for mycosis fungoides and Sézary syndrome and may be linked with a good treatment response.

Reflectance confocal microscopy can noninvasively diagnose onychomatricoma by showing unique features different from healthy nails or nail fungus.

This study identified the presence of apoptotic or necrotic keratinocytes and hair shaft dystrophy as potential markers of hair loss in patients with HIV-1 infection.

This case report describes a patient with a hepatitis C diagnosis whose acral rash, initially unresponsive to psoriasis treatment, showed significant improvement with oral zinc sulfate, suggesting a diagnosis of necrolytic acral erythema.