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Questions and Answers

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?

<p>Cell-proliferation abnormalities (D)</p> Signup and view all the answers

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

<p>Stratus Basale (B)</p> Signup and view all the answers

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

<p>Stratum Spinosum (B)</p> 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?

<p>Stratum Granulosum (B)</p> 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?

<p>Macule (B)</p> Signup and view all the answers

Which one of these is a common characteristic of melanoma?

<p>Irregular borders (A)</p> Signup and view all the answers

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

<p>Translucent appearance on the skin (A)</p> Signup and view all the answers

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

<p>Invasion of the dermis (C)</p> Signup and view all the answers

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

<p>Abnormal squamous cells at the basal layer (B)</p> Signup and view all the answers

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

<p>Raised, hyperkeratotic lesions (D)</p> Signup and view all the answers

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

<p>Chlamydia Trachomatis (A)</p> Signup and view all the answers

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

<p>Herpes Simplex Virus (HSV) (C)</p> Signup and view all the answers

What is the main pathology of sympathetic ophthalmia?

<p>Autoimmune reaction in both eyes (C)</p> Signup and view all the answers

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

<p>Type I immediate-type hypersensitivity (C)</p> Signup and view all the answers

What is the characteristic pathology of lichen planus?

<p>Bead-like subepidermal lymphocytic infiltrate (A)</p> Signup and view all the answers

Which type of melanoma has the highest chance of metastasis?

<p>Vertical growth-phase melanoma (A)</p> Signup and view all the answers

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

<p>Acral lentiginous melanoma (B)</p> Signup and view all the answers

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

<p>Psoriasis (D)</p> Signup and view all the answers

What is the underlying defect in epidermolysis bullosa?

<p>Easy separation between the dermis and epidermis (A)</p> Signup and view all the answers

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

<p>Stevens-Johnson syndrome (C)</p> Signup and view all the answers

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

<p>Chronic cutaneous lupus erythematosus (B)</p> Signup and view all the answers

Which layer do they appear between?

<p>Bruch's membrane and the RPE (B)</p> Signup and view all the answers

What is the consequence of central retinal artery occlusion?

<p>Blindness (A)</p> Signup and view all the answers

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

<p>It gets blood from the choroid underneath (A)</p> Signup and view all the answers

What is the characteristic symptom of central retinal vein occlusion?

<p>Flame-shaped hemorrhages and edema (D)</p> Signup and view all the answers

What causes waxy spots in hypertensive retinopathy?

<p>Protein and lipid transudates (A)</p> Signup and view all the answers

What is the cause of cotton wool spots?

<p>Ischemic injury to nerve fibers (C)</p> Signup and view all the answers

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