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It's important to tell the difference between hair casts, pseudocasts, and nits.

This review discusses Cronkhite-Canada syndrome, highlighting a relatively mild case and suggesting that it may be a more benign and possibly reversible condition with treatment, but reports no new clinical results.

This article provides an update on several international patent cases, including a decision that could change Japan's patent term extension practice, but it reports no new research results.

A woman got severe scalp burns from a salon's improper hair bleaching treatment.

In this study, cyclosporin effectively controlled cases of granulomatous folliculitis, furunculosis, sebaceous adenitis in cats, and alopecia areata in a dog, positioning it as a promising alternative to glucocorticoids in veterinary dermatology.

This article proposes a classification system for hair casts to resolve confusion in existing literature and describes a staining technique to distinguish peripilar keratin casts from other hair disorders, without providing new clinical results.

This study observed that hair casts, seen in girls with tightly drawn hairstyles, may result from local circulatory disturbances and scalp inflammation.

This case series suggests that Propionibacterium acnes colonization may contribute to the development of hair casts and diffuse non-scarring alopecia, as patients' symptoms improved with antibiotics targeting the bacteria.

This notice provides information about JAMA Dermatology's website usage policy, and no research findings are reported.

This case report describes a 9-year-old girl with pseudonits and highlights frequent challenges in correctly diagnosing this condition.

This study observed that pigmented casts are present in various alopecia types but are not specific to any single diagnosis, with distinct morphological features noted in trichotillomania.

This case report describes dermoscopic features of pemphigus vulgaris on the scalp, highlighting that hair casts may suggest treatment adjustment for improved disease control.

This study reports that 0.025% tretinoin lotion seemed effective for idiopathic hair casts in two young girls and suggests an infrainfundibular origin for the lesions.

This report suggests that peripilar hair casts, potentially linked to modern hair styling or mild trichotillomania, may be more prevalent than currently reported.

In this study, two cases of idiopathic hair casts in young girls responded well to 0.025% tretinoin lotion, with analyses suggesting an infrainfundibular origin for the lesions.

This article describes a 9-year-old girl with whitish granules on her hair, evaluated in a dermatology clinic, but the abstract does not report a diagnosis or new results.

This report describes an 11-year-old girl with peripilar keratin casts, a condition often underdiagnosed and mistaken for nits, highlighting the usefulness of keratolytic treatments in management.

This article reviews literature on hair casts, shedding light on this rarely discussed hair disorder, along with a case report of a 5-year-old mistakenly treated for head lice.

This case report describes an 8-year-old girl with hair casts, highlighting the importance of distinguishing them from pediculosis capitis due to their unusual occurrence and varied associations.

This report highlights a 7-year-old girl misdiagnosed with pediculosis capitis, emphasizing the potential severe psychological or physiological consequences of confusing hair casts with nits.

This case report describes a 22-year-old male with hair casts on scalp and body hair, associated with androgenetic alopecia, also affecting his sister as pseudonits.

In this case report, proliferative, lymphocytic, infundibular mural folliculitis and dermatitis have been documented in a female Labrador retriever in a location outside North America for the first time, detailing the dog's clinical symptoms, histopathological findings, and treatment.

This abstract presents a clinical case of a woman with traction alopecia and discusses trichoscopic findings without reporting any new research results.

Hair casts are often mistaken for head lice, scalp pain in hair loss is linked to certain nerve factors, eyelash growth treatment is safe and effective, and nail shedding in children may follow hand-foot-mouth disease.

This study found that adverse reactions to para-phenylenediamine in hair dye, including severe allergic contact dermatitis, may be more common than currently reported and often misdiagnosed.

This study suggests that combining topical squaric acid dibutylester with other therapies may improve hair regrowth in patients with alopecia areata unresponsive to topical therapy alone.

This study reports two cases of follicular lichen planus, suggesting that GLPLS and LPP may be variants of this condition based on clinical and immunofluorescent findings.

This case report describes two instances of rare linear alopecia on the occipital scalp, associated histologically with lupus erythematosus profundus, despite resembling alopecia areata clinically.

In this case report, two women with chronic alopecia areata and acute alopecia universalis experienced sustained and near-complete hair regrowth after over a year of treatment with oral ruxolitinib, without significant side effects.

This case report describes two instances of white piedra, a fungal hair infection, and notes successful treatment with oral itraconazole and topical ketoconazole in one patient.