%0 Journal Article %T Parasitismo imaginario: experiencia cl赤nica y diagn車stica Delusional parasitosis: Clinical and Diagnostic Experience %A 車lger Calder車n-Arguedas %A Adriana Troyo %J Acta M谷dica Costarricense %D 2012 %I Colegio de M谷dicos y Cirujanos de Costa Rica %X Objetivo: describir los casos de parasitismo imaginario observados en el Laboratorio de Entomolog赤a M谷dica, Facultad de Microbiolog赤a, Universidad de Costa Rica durante 20012011. M谷todos: se describen 9 casos cuyas caracter赤sticas coincidieron con cuadros de parasitismo imaginario, y se analiza la ※evidencia diagn車stica§ aportada por algunos de los pacientes como causa de su enfermedad. Resultados: los pacientes refirieron problemas cr車nicos a nivel de piel y cuero cabelludo con s赤ntomas y signos atribuidos, seg迆n su propio criterio, a diferentes tipos de artr車podos. Dichos pacientes ya hab赤an recurrido a consultas previas, sin 谷xito en el diagn車stico esperado. Las muestras aportadas permitieron identificar artr車podos como psycodinos (Diptera: Psychodinae), ps車cidos (Psocoptera), moscas (Diptera: Cyclorrhapha), hom車pteros (Homoptera), hormigas (Hymenoptera: Formicidae), (is車pteros) y ara as (Ar芍cnida: Aranea) los cuales son irrelevantes en cuanto a su importancia m谷dica. Tambi谷n se detectaron granos, fibras vegetales, co芍gulos de fibrina y trozos de queratina d谷rmica. Discusi車n: se hace 谷nfasis al personal cl赤nico y de laboratorio para la ejecuci車n de un correcto diagn車stico e identificaci車n de las posibles causas, antes de proceder a administrar un tratamiento medicamentoso antiparasitario Aim: To describe the cases of delusional parasitosis observed in the Laboratory of Medical Entomology, School of Microbiology, University of Costa Rica during 2001-2011. Methods: Nine cases compatible with delusional parasitosis are described. The ※diagnostic evidence§ provided by patients as cause of their illness is also analyzed. Results: These patients referred chronic problems on skin and scalp with signs and symptoms attributed, in their opinion, to different types of arthropods. These patients had already been evaluated by a physician and had been unsuccessful with the expected diagnosis. The samples provided included several types of arthropods, such as, psychodinae (Diptera: Psychodinae), booklice (Psocoptera), true bugs (Homoptera), flies (Diptera: Cyclorrhapha), ants (Hymenoptera: Formicidae), Isoptera and house spiders (Arachnida: Aranea), that are irrelevant in terms of medical importance. Other materials such as grains, vegetable fibers, fibrin clots, and pieces of skin were also detected. Discussion: We emphasize the importance of a correct diagnosis and identification of possible causes of this syndrome before administering treatment with anti-parasitic drugs %K trastornos psic車ticos afectivos %K par芍sitos %K insecto %K diagn車stico %K Affective disorders %K psychotic %K parasite %K insect %K diagnosis %U http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0001-60022012000300011