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Tinea versicolor fluorescence under Wood's lamp. Tinea versicolor may be diagnosed by a potassium hydroxide (KOH) preparation and lesions may fluoresce copper-orange when exposed to Wood's lamp (UV-A light). [15] The differential diagnosis for tinea versicolor infection includes: [citation needed] Progressive macular hypomelanosis; Pityriasis alba
However, a simple side-room investigation with a Wood's lamp is additionally useful in diagnosing erythrasma. [4] The ultraviolet light of a Wood's lamp causes the organism to fluoresce a characteristic coral red color, differentiating it from other skin conditions such as tinea versicolor , which may fluoresce a copper-orange color. [ 5 ]
Overall sooty-gray with a fairly long pointed tail, fine speckling on the head, pale eyes, and an ivory-colored bill. Male has a red mark from the base of the bill to the cheek. Occurs together with Buff-spotted Flameback and White-bellied Woodpecker, but has a plain gray belly. Voice includes high-pitched chips and squeals." [2]
Microsporum audouinii fluoresces when examined in ultraviolet light (Wood's lamp). [15] The two main growth media employed to test for M. audouinii are Sabouraud's Dextrose agar and potato dextrose agar. On the former, growth is slow with and poor sporulation with most strains producing a few abortive macroconidia and sparse microconidia. [3]
White spots on nails, also known as leukonychia, are usually harmless but may indicate a medical condition. Dermatologists explain common causes and treatment. What Dermatologists Want You to Know ...
As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant. Powdery mildew grows well in environments with high humidity and moderate temperatures; greenhouses provide an ideal moist, temperate environment for the spread of the disease.
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Designs ranged from a "Millet post" with a taller base to a huge 20-foot (6.1 m) double-globe post designed to light plazas and traffic circles. [41] Captain Wood presented a final revised lamppost design to the CFA on November 15, 1923. The post was designed by Wood with input from PEPCO officials.