Morphology and Investigations of Skin Lesions is part of the Clinical Dermatology section of Dermatology. Practise 25 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
Morphology and Investigations of Skin Lesions MCQs test lesion definitions from macule to bulla, diascopy, Tzanck smears and Nikolsky sign, in high-yield NEET PG revision for FMGE, INI-CET and NEET SS.
Pressing the lesion with glass slide - diascopy Helps differentiate between ND and NA. The margins of ND remain distinct from normal skin during diascopy. While margins of NA blend in with surrounding skin as normal skin also blanches on pressing with the slide
Acantholytic cells appear as round cells with perinuclear halo in Tzanck smear: Characteristic of Pemphigus Reference: Rooks textbook of Dermatology, 9 th Edition, Chapter 50, page 3
Dome shaped papules with central umbilication - diagnosis of molluscum contagiosum Tzanck smear can be made from the white pasty core of the molluscum lesion - Giemsa stain done. Tzanck smear reveals the presence of diagnostic intracytoplasmic molluscum bodies (Henderson-Patterson bodies), the largest known inclusion bodies (30-35 m) Reference : Rook’s textbook of dermatology, 9 th Edition, Chapter 25, Page 12
Clear, fluid filled 1cm → bullae. Reference: Rooks textbook of Dermatology, 9 th edition, Chapter 4, page 3
Scale: Visible desquamation of corneocytes (SC) (keratinocytes) Reference: Rooks textbook of Dermatology, 9 th edition, Chapter 4, page 13
Flat, non-palpable, Change in color of skin 1cm → patch Reference: Rooks textbook of Dermatology, 9 th edition, Chapter 4, page3
Full thickness loss of epidermis BM: not intact Reaches dermis Heals with scarring Erosion - partial loss of epidermis. Excoriation - linear scratch marks Atrophy - loss of substance in skin Reference: Rooks textbook of Dermatology, 9 th edition, Chapter 4, page 11
Nikolsky sign: Application of tangential pressure on intact skin leads to formation of erosion Bullae spread sign: Application of pressure from side on an intact bulla leads to extension of bullae Asboe Hansen sign: Application of pressure on the bullae from the top/centre Reference: Rooks textbook of Dermatology, 9 th Edition, Chapter 50, page 5
Morphology and Investigations of Skin Lesions MCQs test lesion definitions from macule to bulla, diascopy, Tzanck smears and Nikolsky sign, in high-yield NEET PG revision for FMGE, INI-CET and NEET SS.
MedLadder includes 25 curated MCQs for Morphology and Investigations of Skin Lesions under Dermatology (Clinical Dermatology), covering NEET PG, FMGE, INI-CET and NEET SS preparation.
