Clinical Qbank(2nd year Subjects)

287. Explanation A) • The larval stage of taenia solium is Cysticercus cellulose, which lives in pig or in humn tissues causing human cysticercosis. Must know questions about Tenia solium: • Life span: > 25 years; Cysticercus survives 5 – 6 years in human body • Final host: Man • Intermediate host: Pig/Man • Infective stage: Cysticercus and Egg • Source of infection: Consuming raw/undercooked pork • Inhabitation site: ƒ Adult org: In human intestine ƒ Cysticercus: In tissues Practice second proff questions at @secondyearmbbsquestions

286. Explanation A) • The fungal hyphae are broken down into smaller sections/compartment by septa → septate hyphae ƒ Example: Apergillus • If there is no septation/compartment → Non-septate (Coenocytic) ƒ Mucor, Zygomycetes Chromoblastomycosis • It is one of the subcutaneous mycosis. • Characterized by: crusted, warty lesions in limbs • Cause: soil inhabiting fungi of the family Dematiaceae. Practice second proff questions at @secondyearmbbsquestions

285. Explanation A) • Meningococcal disease is associated with terminal complement deficiency (C5-C9) which forms the membrane attack complex. Hence the bactericidal activity is reduced in this condition and increases susceptibility to invasive meningococcal infection up to 600 times Practice second proff questions at @secondyearmbbsquestions

284. Explanation A) • Epithelioid cells are defined as cells that resemble epithelial cells (keratinocytes). They have large oval, pale, vesicular nuclei and abundant eosinophilic cytoplasm. • The best-known epithelioid cells are those derived from macrophages within granulomas, but tumor cells can also be described as epithelioid. Immunostaining may be needed to identify the type of epithelioid cell. MOST COMMON LESIONS WITH EPITHELIOID CELLS • Granulomas • Squamous cell carcinoma • Spitz nevus (spindle and epithelioid cell nevus) • Melanoma Practice first proff questions at @firstyearmbbsquestions

283. Explanation A) b. Measles Practice second proff questions at @secondyearmbbsquestions