Biomaterial Database

Hyperpigmented tinea versicolor. 1976

H B Allen, and C R Charles, and B L Johnson

Examination of specimens from lesions of hyperpigmented tinea versicolor and from unaffected skin disclosed that the lesions showed increased stratum corneum turnover (8.2 +/- 0.6 vs 14.8 +/- 0.4 days, respectively), slight to moderate routine histological changes, such as acanthosis and perivascular inflammation, and dramatic electron microscopical changes (larger, singly distributed melanosomes vs small, packaged melanosomes, respectively). Brown hyperpigmentation in tinea versicolor appears to arise from an increase in melanosome size and a change in their epidermal distribution pattern.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008544	Melanocytes	Mammalian pigment cells that produce MELANINS, pigments found mainly in the EPIDERMIS, but also in the eyes and the hair, by a process called melanogenesis. Coloration can be altered by the number of melanocytes or the amount of pigment produced and stored in the organelles called MELANOSOMES. The large non-mammalian melanin-containing cells are called MELANOPHORES.	Melanocyte
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009940	Organoids	An organization of cells into an organ-like structure. Organoids can be generated in culture, e.g., self-organized three-dimensional tissue structures derived from STEM CELLS (see MICROPHYSIOLOGICAL SYSTEMS). They are also found in certain NEOPLASMS.	Organoid
D010859	Pigmentation Disorders	Diseases affecting PIGMENTATION, including SKIN PIGMENTATION.	Incontinentia Pigmenti Achromians,Ito Syndrome,Schamberg's Disease,Schamberg Disease,Disease, Schamberg,Disease, Schamberg's,Disorder, Pigmentation,Disorders, Pigmentation,Pigmentation Disorder,Schambergs Disease,Syndrome, Ito
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D014010	Tinea Versicolor	A common chronic, noninflammatory and usually symptomless disorder, characterized by the occurrence of multiple macular patches of all sizes and shapes, and varying in pigmentation from fawn-colored to brown. It is seen most frequently in hot, humid, tropical regions and is mostly caused by MALASSEZIA FURFUR (formerly Pityrosporum orbiculare).	Malassezia furfur Infection,Pityriasis Folliculitis,Pityriasis Versicolor,Pityrosporum orbiculare Infection,Folliculitides, Pityriasis,Folliculitis, Pityriasis,Infection, Malassezia furfur,Infection, Pityrosporum orbiculare,Malassezia furfur Infections,Pityriasis Folliculitides,Pityrosporum orbiculare Infections