Patho-Block 1 note

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Which of the following is a characteristic symptom of eczema?

Persistent, abnormal epidermal squamous-cell hyperplasia

Weeping, oozing lesions (correct)

Characteristic lesion is groups of vesicles

Bullous lesions leading to desquamation

What is the main cause of scabies?

Fungal infection

Arthropod infestation (correct)

Bacterial infection

Viral infection

Which of the following is a viral infection that causes benign keratinocytic neoplasms?

Human parvovirus B19

Human papillomavirus (HPV) (correct)

Varicella-zoster

Herpes simplex

What is the main factor contributing to the pathogenesis of psoriasis?

Cell-proliferation abnormalities Signup and view all the answers

Which layer of the epidermis contains stem cells and some minimal cell division occurs in this layer?

Stratus Basale Signup and view all the answers

Which layer of the epidermis is the main proliferative layer and where synthesis begins?

Stratum Spinosum Signup and view all the answers

Which layer of the epidermis is the mature synthetic layer, where keratinocytes are synthesizing the granular components of skin?

Stratum Granulosum Signup and view all the answers

Which type of lesion is a small, discolored patch or spot on the skin, neither elevated above nor depressed below the skin's surface?

Macule Signup and view all the answers

Which one of these is a common characteristic of melanoma?

Irregular borders Signup and view all the answers

Which one of these is a common characteristic of basal cell carcinoma?

Translucent appearance on the skin Signup and view all the answers

Which one of these is a common characteristic of squamous cell carcinoma in situ?

Invasion of the dermis Signup and view all the answers

Which one of these is a common characteristic of actinic keratosis?

Abnormal squamous cells at the basal layer Signup and view all the answers

Which of the following is a symptom of squamous cell carcinoma (SCC)?

Raised, hyperkeratotic lesions Signup and view all the answers

Which of the following is the leading cause of blindness worldwide?

Chlamydia Trachomatis Signup and view all the answers

What is the primary cause of corneal ulcers in the U.S.?

Herpes Simplex Virus (HSV) Signup and view all the answers

What is the main pathology of sympathetic ophthalmia?

Autoimmune reaction in both eyes Signup and view all the answers

Which type of hypersensitivity reaction is responsible for urticaria (hives)?

Type I immediate-type hypersensitivity Signup and view all the answers

What is the characteristic pathology of lichen planus?

Bead-like subepidermal lymphocytic infiltrate Signup and view all the answers

Which type of melanoma has the highest chance of metastasis?

Vertical growth-phase melanoma Signup and view all the answers

What is the most common form of melanoma in dark-skinned individuals?

Acral lentiginous melanoma Signup and view all the answers

Which skin disorder is characterized by large, erythematous, scaly plaques commonly found on dorsal extensor surfaces?

Psoriasis Signup and view all the answers

What is the underlying defect in epidermolysis bullosa?

Easy separation between the dermis and epidermis Signup and view all the answers

Which skin disorder is characterized by the presence of bullae resembling a second-degree burn?

Stevens-Johnson syndrome Signup and view all the answers

Which type of lupus erythematosus is a non-systemic disease only affecting the skin?

Chronic cutaneous lupus erythematosus Signup and view all the answers

Which layer do they appear between?

Bruch's membrane and the RPE Signup and view all the answers

What is the consequence of central retinal artery occlusion?

Blindness Signup and view all the answers

Why does the macula retain blood supply in central retinal artery occlusion?

It gets blood from the choroid underneath Signup and view all the answers