Rassegna Bibliografica

Entodermoscopia: letture consigliate

 

-DERMOSCOPY OF TICK BITE

Rallis Efstathios
Department of Dermatology, Veterans Administration Hospital (NIMTS), Athens, Greece.
ScientificWorldJournal 2010 Sep 1;10:1705-6.

Abstract

A 54-year-old woman presented with a 12-h history of the appearance of numerous, intensively pruritic, erythematous papules on her trunk. Dermoscopy showed the presence of small-sized ticks in the majority of lesions. By using medium-tipped, angled forceps, 28 ticks were finally removed. The application of dermoscopy to detect the tick in the lesion is easy, inexpensive, and effective for confirming the diagnosis.

 

-THE DIAGNOSTIC USEFULNESS OF DERMOSCOPY FOR IDENTIFYING SIX-LEGGED LARVAL TICKS

N. Oisoa, , , A. Nakanoa, Y. Yanob and A. Kawadaa
a Dept. of Dermatology, Kinki University Faculty of Medicine, Osaka, Japan
b Dept. of Pathological Sciences, Faculty of Medical Sciences, University of Fukui, Japan
Ticks and Tick-borne Diseases Volume 1, Issue 4, December 2010, Pages 197-198

Abstract

Ticks are vectors of a variety of diseases such as Lyme disease and Japanese spotted fever. We examined an 87-year-old female with multiple tick bites by at least 236 larval Amblyomma testudinarium infestations. Numerous tick bites are generally caused by the six-legged larvae, which were verified in this case by dermoscopy. The present case indicates the diagnostic usefulness of dermoscopy for six-legged larval tick bites

 

-IXODIASIS DISCLOSED BY EPILUMINESCENCE MICROSCOPY WITHOUT SKIN CONTACT

Criado PR, Criado RF.
Faculdade de Medicina, Universidade de São Paulo, SP, Brasil.
An Bras Dermatol. 2010 Jun;85(3):389-90.

Abstract

We describe the case of a 48-year-old healthy man who sought for medical help in our clinic with multiple pruriginous erythematous papules after a 2-day trip to "Serra da Mantiqueira". (Mantiqueira Mountain). A meticulous physical exam with a portable epiluminescence microscopy showed several ticks on a larval form on the skin of the patient.

 

-DERMOSCOPY AS A DIAGNOSTIC TOOL IN DEMODICIDOSIS

 Segal R, Mimouni D, Feuerman H, Pagovitz O, David M.
Department of Dermatology, Rabin Medical Center, Petah Tiqwa, Israel.
Int J Dermatol. 2010 Sep;49(9):1018-23.

Abstract

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
tool for the real-time validation of Demodex infestation and the evaluation and follow-up of affected patients.

 

 

DERMOSCOPY FEATURES FOR THE DIAGNOSIS OF FURUNCULAR MYIASIS

Leonardo Spagnol Abraham, M.DI,II,IV; Luna Azulay-Abulafia, M.D., Ph.DI,III,IV; Danielle de Paula Aguiar, M.DI; Fernanda Torres, M.DIV; Giuseppe Argenziano, M.DV
IDepartment of Dermatology, Instituto de Dermatologia Prof. Rubem David Azulay, Rio de Janeiro, Brazil
IIDepartment of Pathology, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
IIIDepartment of Dermatology, Universidade Estadual do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
IVDepartment of Dermatology, Instituto de Dermatologia e Estética do Rio de Janeiro (IDERJ), Rio de Janeiro, Brazil
VDermatology Unit, 1st Medical Department, Arcispedale Santa Maria Nuova, Reggio Emilia

An. Bras. Dermatol. vol.86 no.1 Rio de Janeiro Jan./Feb. 2011

Abstract

We describe a 56-year-old Brazilian woman presenting three nodular lesions on the scalp. Dermoscopy of all lesions showed a creamy-white body with central bird's feet-like structures surrounded by a thorn crown, corresponding to the posterior segment of the Dermatobia hominis larvae. These novel dermoscopic features allowed us to easily diagnose furuncular myiasis.

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962011000100027&lng=en&nrm=iso&tlng=en

 

 

-CANINE SCABIES IN HUMANS: A CASE REPORT AND REVIEW OF THE LITERATURE

ESEN AYDINGÖZ Ikbal (1) ; TÜLIN MANSUR Ayşe (2) ;
(1) Department of Dermatology, School of Medicine, Acibadem University, Istanbul, TURQUIE
(2) Department of Dermatology, Ahu Hetman Hospital, Marmaris, TURQUIE
Dermatology 2011, vol. 223, no2, pp. 104-106 [3 page(s) (article)] (18 ref.]

Abstract

BACKGROUND: Sarcoptes scabiei causes mange in many domestic and wild mammals, and it has been reported to be transmitted from animals to humans. Canine scabies is known to infest humans, as well. CASE REPORT: We report a 27-year-old woman who presented with severe pruritic papules on the trunk and arms. The patient reported that she had just bought a puppy which was also itchy. Direct microscopy from the dog showed scabies mites. The patient was treated by 5% permethrin which accomplished full recovery. DISCUSSION: Canine scabies in humans is a challenging disease to diagnose since mites are hard to find on skin scrapings of dogs and the burrows that are the hall-mark of scabies are absent. Dermatological examination of the lesions in our patient did not show any burrows or a specific dermoscopic image of scabies. Instead, we observed curvilinear crusts on most of the papules. CONCLUSION: To our knowledge, dermoscopic appearance of canine scabies in humans has not been described before. We think this special pattern of excoriations is the result of superficially dug tunnels that had been torn leaving vacant curved linear remnants behind, and this may provide a good support for the diagnosis of canine scabies contributing to the spectrum of entodermoscopy.

 

-HUMAN PHTHIRIASIS. CAN DERMOSCOPY REALLY HELP DERMATOLOGISTS? ENTODERMOSCOPY: A NEW DERMATOLOGICAL DISCIPLINE ON THE EDGE OF ENTOMOLOGY.

Scanni G.
Dermatology Department, Distretto Socio Sanitario n° 6 ASL Bari, ITALY
G Ital Dermatol Venereol. 2012 Feb;147(1):111-7

Abstract

The diagnosis of human phtiriasis (often referred to as the "crab" or the "pubic louse") can be more difficult than other types of pediculosis (Pediculus corporis and Pediculus capitis) because this insect has a smaller body of 1.2x0.8 mm, may be lighter in color, not as mobile and therefore harder to see to the naked eye. Can dermoscopy aid to perform a better analysis of the skin? The clinical experience developed in two patients gives an affirmative answer, moreover adding useful information of insect and its eggs already known to entomologists but never used in dermatological diagnosis. The identification in vivo can distinguish Phthirus pubis from other skin signs while the conical shape of the operculum and the wide fixing sleeve of egg to hair, tells what species of louse is infesting, even if the insect is unavailable or nits are elsewhere from the pubic area. Entodermoscopy, provided that dermatologists have some knowledge of entomology, therefore promises advantages over standard microscopic examination.