You are a medical education assistant. Search the medical textbook library database and provide DETAILED, COMPREHENSIVE answers for TWO surgical examination questions. These are for a Master of Surgery (MS General Surgery) Year 1 exam, each worth 30 marks. **QUESTION 1 (30 marks):** Describe the etiology, clinical presentation, investigations, severity assessment, management and complications of Acute Pancreatitis. **QUESTION 2 (30 marks):** Discuss etiology, pathogenesis and types of Urolithiasis. Describe the management of renal stone. ## Instructions: 1. Search the medical library database using query_library_db 2. Use headings_fts to find relevant sections, then read_file to get full content 3. Provide thorough, exam-quality answers with all relevant details ## Database search queries to use: For Q1 - Acute Pancreatitis: ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'acute pancreatitis' ORDER BY rank LIMIT 8 ``` For Q2 - Urolithiasis/Renal stones: ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'urolithiasis renal stone calculi' ORDER BY rank LIMIT 8 ``` Also search paragraphs for specific details: ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 40) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH 'Ranson criteria pancreatitis severity' ORDER BY rank LIMIT 5 ``` ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 40) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH 'APACHE pancreatitis scoring' ORDER BY rank LIMIT 5 ``` Read the relevant file sections using read_file with offset and limit=100 for each relevant block found. ## Expected Output Format: Return a detailed markdown document with: ### QUESTION 1: ACUTE PANCREATITIS - Etiology (with percentages/common causes) - Pathophysiology (brief) - Clinical Presentation (symptoms, signs - Grey Turner, Cullen's, etc.) - Investigations (lab tests with expected values, imaging) - Severity Assessment (Ranson's criteria, Glasgow/Imrie, APACHE-II, CT Severity Index/Balthazar) - Management (conservative, surgical, ERCP indications) - Complications (local and systemic) ### QUESTION 2: UROLITHIASIS - Etiology/Risk factors - Pathogenesis (supersaturation, nucleation, crystal growth, aggregation) - Types of stones (calcium oxalate, uric acid, struvite, cystine - with characteristics) - Management of renal stone (medical expulsive therapy, ESWL, PCNL, ureteroscopy, open surgery - indications for each) Be thorough and detailed as these are 30-mark questions for a postgraduate surgical exam.

You are a medical education assistant. Search the medical textbook library database and provide DETAILED answers for FOUR surgical examination topics. These are for a Master of Surgery (MS General Surgery) Year 1 exam short answer questions (each 10 marks). **TOPIC A:** Liver Hydatid Disease **TOPIC B:** Anal Fissure **TOPIC C:** Therapeutic Upper GI Endoscopy **TOPIC D:** Gastritis ## Instructions: 1. Search the medical library database using query_library_db 2. Use headings_fts AND paragraphs_fts to find relevant sections 3. Read the actual file content using read_file 4. Provide thorough 10-mark level answers ## Database search queries to use: ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'hydatid cyst liver echinococcus' ORDER BY rank LIMIT 6 ``` ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'anal fissure' ORDER BY rank LIMIT 6 ``` ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'therapeutic endoscopy upper gastrointestinal' ORDER BY rank LIMIT 6 ``` ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'gastritis' ORDER BY rank LIMIT 6 ``` Also search paragraphs: ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 40) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH 'PAIR procedure hydatid percutaneous' ORDER BY rank LIMIT 5 ``` ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 40) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH 'lateral internal sphincterotomy anal fissure treatment' ORDER BY rank LIMIT 5 ``` Read the relevant file sections found. Use read_file with limit=100 for each block. ## Expected Output Format - provide for each topic: ### TOPIC A: LIVER HYDATID DISEASE - Definition/Causative organism - Life cycle - Pathology (cyst layers - pericyst, ectocyst, endocyst) - Clinical features - Investigations (USS, CT, serology - Casoni test, ELISA) - Complications (rupture, secondary infection, biliary communication) - Treatment (PAIR procedure, surgical - deroofing, pericystectomy, hepatic resection; ALBENDAZOLE) ### TOPIC B: ANAL FISSURE - Definition - Etiology (acute vs chronic) - Pathophysiology (internal sphincter spasm) - Location (posterior midline, sentinel pile) - Clinical features (triad) - Investigations - Treatment (conservative, topical GTN/diltiazem, botulinum toxin, lateral internal sphincterotomy) ### TOPIC C: THERAPEUTIC UPPER GI ENDOSCOPY - Definition/Purpose - Indications - Procedures: hemostasis (injection, thermal, clips), variceal band ligation, polypectomy, foreign body removal, dilation, stenting, PEG - Complications ### TOPIC D: GASTRITIS - Definition/Classification (acute vs chronic) - Etiology (H. pylori, NSAIDs, autoimmune, stress) - Pathology - Types: Type A (autoimmune, fundus), Type B (H. pylori, antrum), Type C (chemical/reactive) - Sydney classification - Clinical features - Investigations - Management (H. pylori eradication - triple/quadruple therapy) Be thorough and detailed.