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Follicular Openings (follicular + opening)

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Medical Sciences100%

Selected Abstracts

Pili bigemini complicating diode laser hair removal

JOURNAL OF COSMETIC DERMATOLOGY, Issue 2 2004
E Kaniowska
Summary After two diode laser treatments for hair removal, a 39-year-old woman was noted to have pili bigemini within the treated areas. It resolved after a third treatment. Pili bigemini, the appearance of two hairs coming from the same follicular opening, can be induced by intermediate doses of laser energy. It follows sublethal damage to the hair follicule apparatus. [source]

Report: Dermoscopy as a diagnostic tool in demodicidosis

INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 9 2010
Rina Segal MD
Background, The in vivo demonstration of Demodex infestation is traditionally based on the microscopic identification of Demodex mites, which is time consuming and requires specific equipment and a trained observer. Objective, The aim of this study was to describe for the first time the use of polarized-light dermoscopy for the diagnosis of demodicidosis in patients with variable clinical presentations. Methods, A total of 72 patients with variable facial eruptions were examined clinically, microscopically, and dermoscopically for the presence of Demodex mites. Results, Of the 72 patients, 55 were found to have demodicidosis. In 54 patients, the dermoscopy examination yielded a specific picture consisting of Demodex "tails" and Demodex follicular openings. In patients with an inflammatory variant of demodicidosis, reticular horizontal dilated blood vessels were also visualized. Microscopically, skin scrapings demonstrated Demodex in 52 patients. Overall, the dermoscopy findings showed excellent agreement with the microscopy findings (kappa value 0.86, 95% CI 0.72,0.99, P < 0.001). In the remaining 17 patients, there was no evidence of Demodex infestation either microscopically or dermoscopically. Limitations, The study was not blinded. As there are no standards for the diagnosis of demodicidosis, our results were based on criteria developed by our research group. Conclusions, This is the first description of the specific dermoscopic findings associated with variable clinical presentations of demodicidosis. Dermoscopy may serve as a valuable tool for the real-time validation of Demodex infestation and the evaluation and follow-up of affected patients. [source]

Extensive inflammatory nevus comedonicus involving half of the body

INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 6 2004
Necmettin Kirtak MD
Nevus comedonicus is an uncommon variant of adnexal hamartoma without known cause. It usually occurs on the face, neck and chest and appears as groups of closely arranged dilated follicular openings with keratin plugs. We report extensive inflammatory nevus comedonicus in a 14-year-old boy involving half of his body, limited by the midline, with suppuration and residual scarring. The lesions first appeared at 3 years of age and worsened at the start of puberty. The clinical features, etiopathology, histopathology and treatment options of nevus comedonicus are briefly reviewed in the light of the literature. [source]

A case of nevus comedonicus syndrome associated with neurologic and skeletal abnormalities

INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 10 2001
Young-Joon Seo MD
A 12-year-old male was referred to us with recurrent pus discharge from tender nodules on the right axilla dating from the neonatal period. The nodules were black, characterized by scarring with dilated follicular openings and there were black papules filled with comedo-like keratin plugs in both axillae. Physical examination revealed a bowing deformity of the right third finger and retardation in language ability. The patient was referred to the Departments of Neurology and Orthopedics in Chungnam National University Hospital, Korea. Histologic examination of one of the black comedo-like lesions showed a bulbous and dilated infundibulum that contained laminated keratin, indicating a diagnosis of nevus comedonicus. A CT scan of the brain revealed dysgenesis of the corpus callosum. The IQ (intelligence quotient) score of the patient, measured by the Korean Wechsler Intelligence Scale for Children-Revised, was 94. The only difficulty noted for ordinary life was learning language. A radiograph of the right hand revealed hyperextension and an ulnar drift deformity of the right middle finger. Corrective osteotomy with external fixation and an iliac bone autograft were performed. Intermittent neurologic follow-up visits were ordered for the noted language deficit. At present the patient only exhibits difficulty in calculation. Oral antibiotics were administered to the skin lesions on occasion for secondary infections and inflammation of the cysts and comedones. Extraction of the comedones was performed as needed. [source]

Naevus comedonicus: a spectrum of body involvement

CLINICAL & EXPERIMENTAL DERMATOLOGY, Issue 5 2007
K. K. Guldbakke
Summary, Naevus comedonicus (NC) is a rare developmental anomaly, with <,200 cases reported in the literature. It usually occurs on the face, neck or chest, appearing as groups of closely arranged dilated follicular openings with keratin plugs. Several associations have been made in the literature. We review the current literature, emphasizing the clinical features, associated conditions and therapeutic options. [source]