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This report describes a case of acquired yellow hair discoloration in a 77-year-old woman, potentially caused by applying selenium sulfide after bacitracin zinc to her scalp.

This article reports on a rare case of hair yellowing induced by topical minoxidil use and discusses drug-induced hair color changes.

This review discusses yellow hair discoloration associated with smoking and systemic conditions, proposing smoking cessation or hair removal as management options, but provides no new clinical results.

This case study describes a cat with concurrent cutaneous xanthomas, demodicosis, and dermatophytosis, which suggests potential primary hyperlipidaemia as the underlying cause for its symptoms.

Ketoconazole shampoo can cause rare pink hair discoloration.

This study explains that while trichothiodystrophy and xeroderma pigmentosum share genetic defects, TTD patients primarily exhibit issues in transcription initiation, not the increased skin cancer risk seen in XP.

This case report presents a patient with necrobiosis lipoidica exhibiting transepithelial elimination of cholesterol crystals through hair follicles, a finding previously associated with necrobiotic xanthogranuloma.

This study reports on a unique clinical presentation of folliculotropic mycosis fungoides in a 60-year-old man, highlighting complexities in diagnosis due to dense histiocytic infiltration, which led to xanthoma formation before treatment, and obscured lymphomatous features.

Tiger tail banding and hair abnormalities are reliable indicators for diagnosing trichothiodystrophy.

This case study describes a 45-year-old male with black hairy tongue who experienced complete resolution of tongue discoloration and improved halitosis after receiving treatment focused on enhanced oral hygiene, tongue brushing, and smoking cessation.

This article reports a case of trichothiodystrophy in a 7-year-old girl with sulfur deficiency in her hair, characterized by sparse, slow-growing hair and distinctive tiger tail banding under microscopy.

Long-term use of canthaxanthin may cause reversible changes in the eye, including crystal deposits and altered vision responses.

In this case report and literature review, researchers observed that black hairy tongue syndrome can be improved by dietary restrictions and local care, identifying factors like antibiotics, malignancies, and certain medications as common triggers, with resolution achieved by eliminating these factors when possible.

This study highlights that smoker's mustache, a tobacco-related hair discoloration on the upper lip, is asymptomatic, generally unnoticed, and may resolve if smoking is discontinued, though patients often continue smoking.

This article presents a case of trichostasis spinulosa, a common but often unrecognized disorder, diagnosed through dermoscopic examination of black macules revealing bundled vellus hairs, with the patient declining treatment.

This article presents five family cases of monilethrix and reports that neither vitamins nor desquamative ointments are effective treatments, although symptoms may spontaneously regress over time.

This article discusses monilethrix, a rare human hair dysplasia caused by mutations in hair keratins, but reports no new clinical findings.

This source describes vitiligo as a chronic condition marked by the loss of skin pigmentation and discusses leukotrichia, a feature affecting 10% to 60% of cases, which arises from melanocyte loss in hair follicles and appears as well-defined white patches on the skin.

The study concluded that careful examination is key to differentiate between lipidized fibrous histiocytoma and juvenile xanthogranuloma.

In this study, deep phenotyping of 68 patients with XPD gene defects successfully separated individuals by clinical diagnosis and survival status, potentially improving diagnosis and prognosis for xeroderma pigmentosum and trichothiodystrophy.

This review discusses the controversial non-inflammatory alopecia known as alopecia X, highlighting its unknown etiology and the variable effectiveness of various proposed treatments, but reports no new results.

This article describes a case of oral pigmentation that posed a diagnostic challenge in determining Addison’s disease and includes a brief review, reporting no new clinical results.

In this study, researchers examined two new cases of trichothiodystrophy and observed that the condition is linked to decreased synthesis of high-sulfur matrix proteins in hair.

This clinical case report identifies xanthomatous hypophysitis in a male patient, highlighting the mismatch between clinical symptoms and MRI findings, which led to a pituitary biopsy and accurate diagnosis instead of unnecessary surgery.

This case report describes a 6-year-old girl diagnosed with monilethrix despite no familial history and treated with a topical minoxidil trial.

In this clinical case study, a 9-year-old girl was diagnosed with monilethrix, a hereditary hair shaft disorder characterized by weak, beaded hair, with management focusing on minimizing hair trauma.

This study found that unilateral topical latanoprost use for glaucoma was associated with hypertrichosis and increased pigmentation of eyelashes in the treated eye compared to the untreated eye.