(a) A 30-year-old female has been brought to medical emergency with a history of low-grade fever, headache, anorexia and weight loss for the last one month. She has also developed diplopia and altered sensorium for the last two days.
(i) What is the

Question

(a) A 30-year-old female has been brought to medical emergency with a history of low-grade fever, headache, anorexia and weight loss for the last one month. She has also developed diplopia and altered sensorium for the last two days.
(i) What is the most likely diagnosis?
(ii) Enumerate the investigations required to confirm the diagnosis.
(iii) Differentiate between the CSF findings in pyogenic, tubercular and viral meningitis.
(iv) Outline the treatment plan in this patient.
(2+6+6+6=20 marks)

(b) A 2-year-old boy was brought to the emergency with the complaints of sudden onset of respiratory distress with irritability. On examination, the child is disoriented and he has both peripheral and central cyanosis. He has deep sighing respiration with SpO₂ < 65% at room air. On oxygen therapy, his SpO₂ is increased to 80%. He has no organomegaly or neurological deficit.
(i) Write the complete diagnosis of this boy.
(ii) How will you manage this case in emergency?
(iii) Classify the congenital cyanotic heart diseases.
(2+8+5=15 marks)

(c) A 48-year-old male presented with yellowish, greasy scales and redness over the scalp.
(i) What is the most likely diagnosis?
(ii) Mention the sites of involvement in this disease.
(iii) Name the organism responsible for the pathogenesis of this disease.
(iv) Outline its treatment.
(2+4+2+7=15 marks)

UPSC Answer Check · Accepted Answer

The directive 'outline' demands a structured, systematic presentation of diagnostic reasoning, investigations, and management plans. Allocate approximately 40% of effort to part (a) given its 20 marks weightage, with 30% each to parts (b) and (c). Structure each case as: clinical presentation → diagnosis → investigations → management, ensuring crisp bullet points for investigations and tabular formats for CSF differentiation in (a)(iii).
- Part (a): Diagnosis of tubercular meningitis with cranial nerve involvement (CN VI palsy causing diplopia); CSF analysis showing lymphocytic pleocytosis, low glucose, high protein, and ADA levels; differentiation table of pyogenic (neutrophilic, low glucose), tubercular (lymphocytic, low glucose, high protein), and viral (lymphocytic, normal glucose) meningitis
- Part (a): ATT regimen (HRZE for 2 months, HR for 7-10 months) with corticosteroids for cerebral edema and raised ICT management; mention of DOTS strategy relevance in Indian context
- Part (b): Diagnosis of cyanotic spell/hypercyanotic spell in Tetralogy of Fallot (TOF) with differential of other cyanotic CHD; emergency management in knee-chest position, oxygen, morphine, IV fluids, sodium bicarbonate if acidotic, and beta-blockers
- Part (b): Classification of cyanotic CHD into: (1) increased pulmonary blood flow (TAPVC, TGA), (2) decreased pulmonary blood flow (TOF, tricuspid atresia), and (3) parallel circulation (single ventricle, truncus arteriosus)
- Part (c): Diagnosis of seborrheic dermatitis; sites including scalp, nasolabial folds, eyebrows, glabella, presternal area, interscapular region, and flexural areas
- Part (c): Role of Malassezia furfur (Pityrosporum ovale) in pathogenesis; treatment with ketoconazole shampoo, topical antifungals, mild topical corticosteroids, and calcineurin inhibitors for maintenance

Dimension	Weight	Max marks	Excellent	Average	Poor
Concept correctness	25%	12.5	Accurately identifies tubercular meningitis in (a) with recognition of CN VI palsy; correctly diagnoses hypercyanotic spell in TOF for (b); precisely names seborrheic dermatitis and Malassezia furfur in (c); CSF values for all three meningitis types are physiologically accurate with correct ranges	Correctly identifies meningitis but misses tubercular etiology; recognizes cyanotic CHD but spells wrong diagnosis; identifies dermatitis but names incorrect organism; CSF values partially correct with some confusion	Misdiagnoses as pyogenic meningitis or brain tumor; fails to recognize cyanotic spell mechanism; confuses seborrheic dermatitis with psoriasis or tinea capitis; fundamentally incorrect CSF parameters
Clinical correlation	20%	10	Links subacute presentation with cranial nerve involvement to TB meningitis; explains why knee-chest position relieves cyanotic spell by increasing SVR and reducing R-to-L shunt; correlates greasy scales with sebaceous gland-rich areas and Malassezia lipase activity	Mentions clinical features without pathophysiological linkage; describes position change without hemodynamic explanation; lists sites without explaining sebaceous distribution pattern	Lists symptoms without diagnostic synthesis; no understanding of spell pathophysiology; purely descriptive without clinical reasoning
Diagram / pathway	15%	7.5	Includes CSF analysis flowchart/table for (a)(iii); draws TOF anatomy with right ventricular outflow obstruction for (b); illustrates seborrheic distribution pattern on face/scalp for (c); uses standardized symbols and clear labeling	Mentions need for diagrams but execution is poor or incomplete; rough sketches without proper labeling; table present but poorly formatted	No diagrams despite clear need for visual representation in classification and CSF differentiation; text-only descriptions where figures are essential
Differential / staging	20%	10	For (a): differentiates TB meningitis from cryptococcal, partially treated pyogenic, and carcinomatous meningitis; for (b): distinguishes TOF spell from other cyanotic CHD using hyperoxia test and ECHO findings; for (c): differentiates from psoriasis, tinea capitis, and atopic dermatitis with distinguishing features	Lists differentials without distinguishing features; mentions other cyanotic CHD but classification incomplete; superficial differentiation of skin conditions	No differentials provided; or incorrect differentials that mislead diagnosis; confuses all three case scenarios
Management / public-health angle	20%	10	For (a): DOTS/DBT scheme, steroid protocol, and monitoring for complications; for (b): complete emergency algorithm with definitive surgical timing; for (c): maintenance therapy and relapse prevention; mentions RNTCP relevance and pediatric cardiac surgery programs in India	Standard treatment mentioned but dosing errors; emergency steps incomplete; no mention of national health programs	Incorrect drug regimens (e.g., no steroids in TBM); dangerous management (beta-agonists in cyanotic spell); no follow-up or preventive strategy

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