Midterm: Skin Lesions Flashcards
Chronic inflammatory disease of pilosebaceous follicles, with comedomes, papules, pustules, and nodules. Usually arises with puberty, but can be adult onset as well.
Acne Vulgaris
What chronic, relapsing disease is associated with atopic patients? You will see intense itching and excoriation/lichenification located on flexural surfaces, face and neck.
Atopic Dermatitis (Eczema)
Acute atopic dermatitis presents as?
Erythema, vesicles, bullae, weeping, and crusting
Subacute atopic dermatitis presents as?
Scale plaques, papules, round erosions, and crusts
Chronic atopic dermatitis presents as?
Lichenification, scaling, hyper- and hypopigmentation
This condition presents as a dry, pruritic, red and fine greasy/scaly lesion. Usually shows up on the scalp and eyebrows, but also in the glabella, nasolabial folds, ears, and eyelids.
Seborrheic Dermatitis
How does seborrheic dermatitis present in babies?
Cradle cap
These present as a waxy, stuck on appearance that is well circumscribed. Most commonly associated with aging.
Seborrheic Keratosis
This firm nodule is round with well defined boarders, usually on the legs. When you squeeze it, there is a dimple which can help confirm the diagnosis.
Dermatofibroma
This chronic relapsing condition presents with facial flushing and localized erythema. You will see telangiectasias, papules, and pustules on the nose and cheeks. Can inflame the nose and cause rhinophyma.
Rosacea
This cyst is composed of squamous epithelium and lipid rich debris. It is asymptomatic (usually). They are dome shaped, firm, and flesh colored. If it ruptures, its very malodorous.
Sebaceous Cyst
This pigmented lesions usually arise in childhood, adolescence or early adulthood. They can darken and become more noticeable. Some can be flat, while others are nodular.
Nevus
- junctional nevi=flat
- compound nevi=raised
These target like lesions can arise from drug interactions (especially penicillin), or from mycoplasma, HSV, and GAS. You see erythema and a central area of necrosis.
Erythema Multiforme
Don’t forget SJS and TENS
This condition presents as an abrupt onset, all in same stage of development and located on extensor surfaces. They can be itchy/painful. They are dome shaped, yellow orange and firm papules. In darker skinned people they tend to be harder to identify.
Eruptive Xanthoma
This condition is considered paraneoplastic. You will have proximal muscle weakness, dysphagia, and can have cardio/respiratory issues as well. You may see a rash around the eyes (heliotrope rash), or red, scaly papules on the dorsal MCP joints (atrophic dermal papules), and shawl sign.
Dermatomyositis
Can also present in the nailbed!
