Black hairy tongue (BHT) is a benign disease characterized by elongated filiform lingual papillae, with a carpet-like appearance of the dorsum of the tongue. It is has been reported to occur with a prevalence ranging from 0.6% to 11.3%. Although its etiology is not fully understood, BHT may be triggered by smoking, excessive coffee or black tea drinking, poor oral hygiene, trigeminal neuralgia, general debilitation, dry mouth as well as certain drugs. We present here a case of a patient with psychosis, depression, and benign prostatic hyperplasia, who developed BHT following treatment with a fixed dose combination (FDC) of olanzapine and fluoxetine and recovered within 3 months after withdrawal of treatment with FDC.
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http://dx.doi.org/10.4103/0253-7613.182894 | DOI Listing |
Cureus
November 2024
Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, JPN.
Black hairy tongue, also known as , is a benign oral condition characterized by a dark discoloration and "hairy" appearance on the tongue's dorsal surface, resulting from elongated filiform papillae. This condition is associated with risk factors such as smoking, poor oral hygiene, and diabetes, which increase susceptibility to microbial colonization, particularly by species. Although commonly diagnosed by visual inspection, black hairy tongue is infrequently observed during endoscopic procedures.
View Article and Find Full Text PDFMed Clin (Barc)
December 2024
Academic Department, School of Medicine, University of Monterrey, Monterrey, NL, Mexico. Electronic address:
Am Fam Physician
November 2024
University of North Carolina School of Medicine, Chapel Hill.
Tongue conditions occur in 15.5% of the US population. The most common tongue conditions are geographic tongue, fissured tongue, and black hairy tongue; these conditions do not require treatment.
View Article and Find Full Text PDFPhys Rev Lett
October 2024
Institut Denis Poisson, UMR-CNRS 7013, Université de Tours, Parc de Grandmont, 37200 Tours, France.
We construct static and axially symmetric magnetically charged hairy black holes in the gravity-coupled Weinberg-Salam theory. Large black holes merge with the Reissner-Nordström (RN) family, while the small ones are extremal and support a hair in the form of a ring-shaped electroweak condensate carrying superconducting W currents and up to 22% of the total magnetic charge. The extremal solutions are asymptotically RN with a mass below the total charge, M<|Q|, due to the negative Zeeman energy of the condensate interacting with the black hole magnetic field.
View Article and Find Full Text PDFPhys Rev Lett
September 2024
Departamento de Física, Universidad de Concepción, Casilla, 160-C, Concepción, Chile.
We show that the planar, charged black hole in asymptotically anti-de Sitter spacetime, dual to the strongly coupled quark-gluon plasma thermal state of large N, SU(N), N=4 super Yang-Mills at finite chemical potential undergoes a third-order phase transition in the grand canonical ensemble to a hairy black hole of type IIB supergravity. The hairy phase is another strongly coupled fluid with a conformal equation of state and can be interpreted as another kind of quark-gluon plasma. This new quark-gluon plasma has less entropy and, therefore, seems to characterize some form of smooth hadronization.
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