Abstract

The tick feeding process in humans and its local effects have been studied histologically and in reflection microscopy on specimens of skin lesions, and on tick samples. The mouthparts of the attached ticks, embedded in a cement cone, lined the oral canal. The pharynx was supplied with anti-reflux valves and dilating muscles. The dermis around the mouthparts was, characteristically, replaced by a lose network of fibrin, endothelia, and collagen fibers, soaked with edema and blood, with a dense neutrophilic infiltrate beneath the cone. The vessels showed interruptions, with blood extravasation, endothelial proliferation, and vasculitis. After the tick removal, Erythema Chronicum Migrans–like patches, foreign body granuloma, T- and the B-cell lymphoid hyperplasia, and alopecia areata –like hair loss were recognized.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2009

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Tick Bites
Ticks
Erythema Chronicum Migrans
Foreign-Body Granuloma
Alopecia Areata
Alopecia
Dermis
Vasculitis
Pharynx
Fibrin
Endothelium
Hyperplasia
Microscopy
Edema
B-Lymphocytes
Collagen
Muscles
Skin

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title = "Tick Bites - the View from Inside-Out",
abstract = "The tick feeding process in humans and its local effects have been studied histologically and in reflection microscopy on specimens of skin lesions, and on tick samples. The mouthparts of the attached ticks, embedded in a cement cone, lined the oral canal. The pharynx was supplied with anti-reflux valves and dilating muscles. The dermis around the mouthparts was, characteristically, replaced by a lose network of fibrin, endothelia, and collagen fibers, soaked with edema and blood, with a dense neutrophilic infiltrate beneath the cone. The vessels showed interruptions, with blood extravasation, endothelial proliferation, and vasculitis. After the tick removal, Erythema Chronicum Migrans–like patches, foreign body granuloma, T- and the B-cell lymphoid hyperplasia, and alopecia areata –like hair loss were recognized.",
keywords = "Tick microanatomy, Tick bites, Histopathology.",
author = "Elena Castelli and Tomasino, {Rosa Maria} and Vincenza Morello",
year = "2009",
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TY - CONF

T1 - Tick Bites - the View from Inside-Out

AU - Castelli, Elena

AU - Tomasino, Rosa Maria

AU - Morello, Vincenza

PY - 2009

Y1 - 2009

N2 - The tick feeding process in humans and its local effects have been studied histologically and in reflection microscopy on specimens of skin lesions, and on tick samples. The mouthparts of the attached ticks, embedded in a cement cone, lined the oral canal. The pharynx was supplied with anti-reflux valves and dilating muscles. The dermis around the mouthparts was, characteristically, replaced by a lose network of fibrin, endothelia, and collagen fibers, soaked with edema and blood, with a dense neutrophilic infiltrate beneath the cone. The vessels showed interruptions, with blood extravasation, endothelial proliferation, and vasculitis. After the tick removal, Erythema Chronicum Migrans–like patches, foreign body granuloma, T- and the B-cell lymphoid hyperplasia, and alopecia areata –like hair loss were recognized.

AB - The tick feeding process in humans and its local effects have been studied histologically and in reflection microscopy on specimens of skin lesions, and on tick samples. The mouthparts of the attached ticks, embedded in a cement cone, lined the oral canal. The pharynx was supplied with anti-reflux valves and dilating muscles. The dermis around the mouthparts was, characteristically, replaced by a lose network of fibrin, endothelia, and collagen fibers, soaked with edema and blood, with a dense neutrophilic infiltrate beneath the cone. The vessels showed interruptions, with blood extravasation, endothelial proliferation, and vasculitis. After the tick removal, Erythema Chronicum Migrans–like patches, foreign body granuloma, T- and the B-cell lymphoid hyperplasia, and alopecia areata –like hair loss were recognized.

KW - Tick microanatomy, Tick bites, Histopathology.

UR - http://hdl.handle.net/10447/43700

M3 - Paper

ER -