Oftalmomiasis orbitaria por Dermatobia hominis en un paciente inmunosuprimido en un área andina ecuatoriana / Orbital ophthalmomiasis due to Dermatobia hominis in an immunosuppressed patient from the ecuadorian andean area

Varón ecuatoriano de 83 años, indigente, con antecedente de desnutrición y alcoholismo crónico, acude por un cuadro clínico caracterizado por crecimiento progresivo de larvas a nivel ocular izquierdo (OI), asociado a áreas de putrefacción de tejidos oculares. Al ingreso, su visión en ojo derecho (OD) fue de movimiento de manos y el OI indicaba no percepción de luz, el segmento anterior de OD evidenció una catarata brunescente, sin otra alteración, mientras que el OI presentó edema, eritema bipalpebral y abundante cantidad de larvas móviles distribuidas en toda la órbita, asociado a áreas de necrosis, putrefacción y distorsión de la anatomía de los tejidos oculares. La tomografía de órbita mostró un compromiso importante de la órbita, indicándose manejo quirúrgico mediante exenteración orbitaria izquierda con identificación taxonómica de las larvas como Dermatobia hominis, asociado a ello, se implementó tratamiento antibiótico y realización de un colgajo fasciocutáneo frontal por el Departamento de Cirugía Plástica (AU)

An 83-year-old Ecuadorian male, indigent with a history of malnutrition and chronic alcoholism, presented with a clinical feature characterized by progressive growth of larvae at the left eye level (LE), associated with areas of ocular tissue putrefaction. Upon admission, his vision in the right eye (RE) was of hand movement and no light perception in LE, the anterior segment of the RE showed a brunescent cataract, with no other alteration, while the LE presented edema, bipalpebral erythema and an abundant number of mobile larvae distributed throughout the orbit, associated with areas of necrosis, putrefaction and distortion of the anatomy of the ocular tissues. Orbital tomography showed a significant compromise of the orbit, indicating surgical management by left orbital exenteration with taxonomic identification of the larvae as Dermatobia Hominis associated with it, antibiotic treatment was implemented and a frontal fasciocutaneous flap was performed by the plastic surgery department (AU)

Point-of-Care Ultrasound Findings in a Case of Botfly Myiasis Contracted in the United States.

Botfly infiltration is a rare cause of pediatric skin manifestations in the United States, but should be considered in nonhealing wounds even in nontravelers. We describe the case of a healthy 6-y-old female who had never traveled outside of the southeast United States, presenting with a nonhealing skin lesion. The point-of-care ultrasound (POCUS) findings suggested subcutaneous parasitic infiltration. This case demonstrates the role of POCUS in identification of subcutaneous parasitic infiltration, and differentiation from other, more common skin lesions.

COMPUTED TOMOGRAPHY OF CUTANEOUS MYIASIS IN AN ORNATE BOX TURTLE (TERRAPENE ORNATA ORNATA).

A juvenile intact female ornate box turtle (Terrapene ornata ornata) was referred for evaluation of right-sided appendicular swelling that was nonresponsive to antimicrobial therapy. Computed tomography (CT) revealed severe soft tissue swelling of the limbs and neck, with multiple associated tortuous gas-filled sinus tracts extending from the cutaneous surface, which contained oblong soft tissue attenuating structures. These CT findings were most consistent with migrating dipterous larvae. Surgical exploration was performed and six sarcophagid larvae (Superfamily Oestroidea) were extracted. To our knowledge, this is the first case report in veterinary medicine providing antemortem CT imaging features of cutaneous myiasis in a reptile.

Cutaneous myiasis in cats and dogs: Cases, predisposing conditions and risk factors.

Two cases of cutaneous myiasis diagnosed in 2018 in Emilia-Romagna region (northern Italy) were reported. The first one, described in a domestic cat Felis silvestris catus L. (Carnivora: Felidae) and caused by Calliphora vicina Robineau-Desvoidy (Diptera: Calliphoridae), was the first one of this type ever reported in Italy in cats. The second one was described in a domestic dog Canis lupus familiaris L. (Carnivora: Canidae) and caused by Lucilia sericata (Meigen) (Diptera: Calliphoridae) and was unusual because it occurred in absence of lesions. An extensive literature search on cutaneous myiasis in these two domestic animal species was performed in order to draw attention to predisposing conditions and risk factors.

Urogenital myiasis caused by Lucilia sericata (Diptera: Calliphoridae) in a domestic rabbit in Italy.

The report describes a case of urogenital myiasis in a domestic rabbit Oryctolagus cuniculus L. (Lagomorpha: Leporidae) caused by Lucilia sericata (Meigen; Diptera: Calliphoridae) in region Emilia-Romagna (Northern Italy). The case, occurring in June 2018, is the first one involving L. sericata as an agent of myiasis in a domestic rabbit in Italy. Species identification was based on morphological investigations of males through identification keys. The rabbit developed the urogenital myiasis as a consequence of chronic enteritis causing an accumulation of faeces in the perianal and perineal region.

Miasis ocular: el misterio es microscópico / Ocular myiasis: the mystery is microscopic

La miasis ocular es la invasión del órgano ocular y anejos por larvas de insectos que produce dolor, ardor, picazón y enrojecimiento uniocular de inicio abrupto acompañado de sensación de cuerpo extraño en movimiento. Las larvas se acantonan y reproducen invadiendo el tejido progresivamente. Mediante un caso clínico, presentamos los procedimientos diagnósticos y terapéuticos a realizar. Se trata de un agricultor de 56 años que acude a urgencias por prurito y sensación de ocupación en el ojo derecho de 24 horas de evolución sin irritación conjuntival, ni alteraciones visuales, ni limitación motora y el test de fluoresceína fue negativo. Tras lavarlo se evidencian helmintos en el espacio palpebral que más tarde serán identificados como larvas de mosca. Con antibiótico local profiláctico, analgésico tópico y revisiones periódicas en Oftalmología para su arrastre manual se consiguió la recuperación completa. No precisó de tratamiento antiparasitario pues no se objetivó lesión o problema ocular. La miasis es una patología infrecuente que suele confundirse con una conjuntivitis alérgica o viral. Las medidas higiénicas son imprescindibles para prevenirlas como son la limpieza del entorno, la buena higiene personal, la provisión de saneamiento básico y educación sanitaria en el medio rural

Ocular myiasis is the infestation of the eye and adnexa by insect larvae that produces pain, burning, itching and uniocular redness of abrupt onset accompanied by a moving foreign body sensation. The larvae settle and reproduce invading the tissue progressively. Through a clinical case, we present the diagnostic and therapeutic procedures to be performed. This is the case of a 56-year-old farmer who goes to the emergency room for pruritus and foreign body sensation in the right eye for 24 hours after onset without conjunctival irritation, visual disturbances, or limited movement, and with negative fluorescein test. After washing, helminths are evident in the palpebral space, whichwill later be identified as fly larvae. With local prophylactic antibiotics, topical analgesics and periodic control visits to Ophthalmology for manual removal, complete recovery was achieved. He did not need antiparasitic treatment because no eye injury or problem was observed. Myiasis is an infrequent pathology that is often confused with allergic or viral conjunctivitis. Hygiene measures are essential to prevent them, such as cleaning the environment, a good personal hygiene, the provision of basic sanitation and health education in rural areas

Más allá de un quiste en la cabeza / More than a cyst in the head

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Miasis auricular / Aural myiasis

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Dermatobia hominis misdiagnosed as abscesses in a traveler returning from Brazil to Denmark.

We present the case of a 62-year-old woman that consulted us for two boil-like lesions on her thighs after returning from a trip to São Paulo, Brazil, where she had swum in a freshwater lake. After consulting three specialist doctors and undergoing two antibiotic treatments, she was diagnosed with furuncular myiasis caused by Dermatobia hominis. The parasites were excised with no complications.

Postoperative Wound Myiasis Caused by Sarcophaga carnaria.

Myiasis is a parasitic infection caused by dipteran larvae settling in living tissue and organs. Infestation is generally found in tropical and rural areas, where interaction with animals is common. It is diagnosed based on the evidence of the existence of dipteran larvae in tissues and organs. When planning the treatment, identifying the type of larvae is as important as identifying the infected organ or system. In this case report, we present the case of a female who had a biliary tract injury caused by laparoscopic cholecystectomy and who developed a postoperative enterocutaneous fistula and myiasis caused by third-stage Sarcophaga sp. larvae at the incision area.

Ultrasound Visualization of Atypical Abscess Ultimately Containing Bot Fly Larva.

BACKGROUND: Because of the rise in community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), presentations to the emergency department for the evaluation of cutaneous abscesses have risen dramatically over the past 2 decades. Soft tissue point of care ultrasound (POCUS) differentiates abscess from cellulitis, determines the size and shape, and characterizes the contents of the abscess. It has been shown to improve medical decision-making and therefore the emergency management of cutaneous abscesses over physical examination alone. CASE REPORT: We report a case of an unusual nonhealing abscess in an 18-year-old woman with a recent history of foreign travel where soft tissue POCUS identified motion within the abscess pocket. This changed the management of the case, leading to the diagnosis of bot fly myiasis. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Clinicians should entertain a broader differential for an apparent abscess and consider liberal use of soft tissue POCUS in these cases.