Piedra in Vermont

Daly, John F.

doi:10.1001/archderm.1957.01550160110016

Cited by 10 publications

(1 citation statement)

References 2 publications

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“…Brunner 11 describes three patients who had been treated as bearing pediculosis, but who in fact had HC, and makes several considerations on the disease and points out as possible differential diagnoses triconodosis, tricorrexis nodosa, pediculosis and othert manifestations. Daly 12 presents the case of a white seven-year-old boy who had been diagnosed as having white piedra. Because of the rarirty of such case at the place, the child was hospitalized for investigation.…”

Section: Scottmentioning

confidence: 99%

Cilindros capilares: relato de três casos e revisão da literatura

Minelli¹,

Gon²,

2006

An. Bras. Dermatol.

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Hair casts are small white yellowish keratinous structures that totally wrap the hair shaft. They are characterized by asymptomatic, semifirm, tannish, freely movable, cylindrical masses, distributed along the scalp hair. This condition has been found in three women, whose case histories are described. INTRODUCTIONHair casts (HC) are characterized by white yellowish cilindrical concretions that involve hair shaft, but do not adhere to it. On the contrary, they slide through hairs when tractioned.1-3 They were first described in 1957 by Kligman 3 and, even though they are not unusual, there is scarce literature on it. These structures measure from three to 7mm in length, and they have variable location throughout scalp. They may occur in small or large numbers, and their importance lies in the fact that they are frequently confounded with othere common diaseases of the scalp, such as pediculosis, white piedra and seborrheic dermatitis, for instace. According to the literature and the author's experience, false diagnoses are common, which implies inadequate treatment and becomes a reason for both patient and physician anxiety.Below, three cases are reported on women affecetd by this condition, the initial diagnosis of which involved other diseases; besides, a brief literature review is presented. CASE REPORTS Case 1White single 20-year-old female patient, born at and coming from Cambé, PR, who sought assistance claiming to have noticed the presence of many louse eggs two weeks before, with no pruritus. She then requested her sister to verify the region and, as she expected, no louse was found. On examination, she presented a great amount of white spots sorrounding hairs in all their extension (Figure 1). The scalp had normal aspect, and no parasites were detected. With a diagnostic hypothesis of white piedra, a mycological test was requested, with negative result. On reevaluation, the patient herself called attention to the fact that lesions were withdrawable by simple sliding through the hair shaft, as if removing beads from a necklace. She added that although she had aquired this habit, new lesions kept being formed. Based on these facts and on microscopic examination of hairs (Figures 2 and 3), and with the aid of literature, we confirmed the clinical diagnosis of hair casts. Because the patient was pregnant, an expecting approach was employed, with spontaneous resolution after delivery. Case 2White 48-year-old retired widowed female coming from Londrina, PR, bearing psoriasis for years, reported the appearance of whitish concretions (Figure 4) disposed along hairs, as well as psoriatic desquamation on scalp. Such formations also slided as far as the distal hair extremity when tractioned. After receiving the clinical diagnosis of hair casts associated to psoriasis, she was treated with tar shampoo and capillary betametasone, with improvement of the condition. Case 3White 13-year-old female student coming from Londrina, PR, reported hair lesions with no pruritus for weeks. On examination, small whit...

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Section: Scottmentioning

confidence: 99%