Notes in Dermatology

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Published	02/08/2025	Wide tear that involves the epidermis only
Published	02/08/2025	Wide tear that involves the dermis
Published	02/08/2025	A 45-year-old woman presents with oral ulcers. For the past two months, she has been developing many painful ulcers in her mouth that take weeks to he…
Published	02/08/2025	A 52-year-old man presents to the office with an itchy, painful rash for the past six months. On physical examination, he has erythematous, scaly plaq…
Published	02/08/2025	An 8-day-old newborn boy is brought to the emergency room because of a rash. Two days ago, he developed a diffuse red rash that evolved into blisters …
Published	02/08/2025	A 3-year-old boy is brought to the emergency room because of a rash. Fifteen minutes after eating scrambled eggs, he developed the itchy rash shown in…
Published	02/08/2025	A 19-year-old obese man presents with a rash on the back of his neck. The back of his neck has been getting darker over the past six months. A ph…
Published	02/08/2025	A {{c1::Fissure}} is a narrow tear with walls and can happen in {{c1::epidermis}} or {{c1::dermis}}An erosion involves the {{c1::e…
Published	02/08/2025	{{c1::Crust }}: its a dried exudate of skin lesion Example: impetigo
Published	02/08/2025	{{c1::Scale}}: is produced by peeling/flaking of {{c1::stratum corneum}}
Published	02/08/2025	{{c1::Wheal}}: smooth, elevated papule or plaque, surrounded by {{c1::erythema}}, produced by {{c1::dermal edema}}, and tipically caused by&…
Published	02/08/2025	Pustule: {{c1::Pus-filled vesicle}} with a white centerExample: acne and {{c1::pustular psoriasis}}
Published	02/08/2025	{{c1::Vesicles}} and {{c1::Bulla}} are {{c2::fluid-filled lesions (blisters) }}, and the main difference is the size </> {{c2::1}…
Published	02/08/2025	Maculopapular rashes, refer to a collection of small skin lesions, some macules and papules, and is also called {{c1::morbiliform}}Its common in …
Published	02/08/2025	{{c1::Papules}} and {{c1::Plaques}} are raised lesiones. The difference in the size is </> {{c1::1}} cm
Published	02/08/2025	{{c1::Macules}} and {{c1::Patches}} are flat, not raised lesions, and the difference between them is the size, < / > {{c1::1}} cm&nbsp…
Published	02/08/2025	Skin lesions can be described as either:. -{{c1::Primary lesions}}: directly caused by disease process--Examples: {{c1::Macules, papules, ve…
Published	02/08/2025	In acanthosis nigricans, people have {{c1::hyperpigmented}} plaques on skin, clasically occuring in {{c1::intertriginous}} sites, specially in th…
Published	02/08/2025	{{c1::Acanthosis}}: is a {{c2::Diffuse epidermal hyperplasia}}, in a biopsy we will find elongated {{c2::rete ridges}} from {{c2::spinous}} …
Published	02/08/2025	{{c1::Acantholysis}}: refers to a {{c2::loss of connections between keratinocyte}}, often {{c2::loss of desmosmes}}, leading to {{c2::r…
Published	02/08/2025	{{c1::Spongiosis}}: means {{c2::edema}} of the {{c2::epidermis}, seen in {{c2::eczema}} and many other skin disorders
Published	02/08/2025	{{c1::Hypergranulosis}}: increased thickness of stratum {{c1::granulosum}}. This is a classic finding in {{c1::liche planus}}
Published	02/08/2025	Parakeratosis:  is usually seen together with {{c1::hyperkeratosis}} and it means there are {{C1::retained nuclei}} in the stratum&nbsp…
Published	02/08/2025	The epidermis of the skin is made out of 5 layers:  ( from superficial to deep) 1.Stratum {{c1::corneum}}: containing {{c1::anucleated}…
Published	02/08/2025	The skin is made out of 3 layers: - The epidermis: made out of ketatinocytes, which are {{c1::squamous epithelial}} cells -The dermis: …
Published	02/08/2025	The {{c1::Skin }} is the largest organ in the body, its a barrier against infection, and prevents water loss .
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