Act as a Surgeon 🧠🔪

31. Hashimoto 👉may turn papillary carcinoma or non hodjken lymphoma 32. Autoimmune thyroid disease 👉 hashimoto, primary thyrotoxicosis ( graves ) 33. FNAC 👉  doesn't  differentiate between Follicular carcinoma & follicular adenoma  ( because they have same microscopic pict ) so we do histopathology to show capular and vascular invasion 34. Tumor maker for MTC👉 calcitonin (For follow up) 35. Tumor marker for PTC&FTC👉 thyroglobulin 35. FNAC is the procedure of choice in the evaluation of thyroid nodule 36. In case of pheochromocytoma & medullary carcinoma 👉treat pheochromocytoma first 37. Inf . Thyroid vein 👉 drain into  left brachiocephalic vein 38. Nerve supply to strap muscle ( which cover thyroid ) 👉 anca  cervicalis 39. Name of incision in thyrodectomy 👉 kocher  incision 40. RLN injury causes 👉 horsness of voice 41. Sup.thyroid artery associated with ELN 42. external laryngeal nerve injury causes 👉 voice fatigue( supply cricothyroid mus) 43. External laryngeal nerve 👉 branch from sup . Laryngeal nerve of the vagus 44. RLN associated with inf. Thyroid artery  and it is a branch from vagus nerve 45.Most common carcinoma in children 👉 PTC 46. Most common tumor in children 👉 Nephroblastoma 47.Triple investigations of the thyroid gland: Hormonal profile Ultrasound Fine needle aspiration 48.Kocher test 👉in Simple nodular goitre to detect trachomalasia 49.pamperton sign 👉 retrosternal goitre 50. Most common method of spread of cancer breast 👉 lymphatic 51. Commonest site of bone metastasis  in breast cancer 👉 lumbar vertebrae 52. Commonst  breast mass in young female 👉 fibroadenoma 53. Commonst breast disorder👉fibroadenosis 54. Commonst cause of blood nipple discharge 👉 ductal papilloma 55. Commonst cause of nipple discharge 👉 mammary ductacesia 56. Commonst site for breast cancer and fibroadenosis 👉 upper outer part 57. Commonst presentation of fibroadenosis 👉 cyclic mastalgia 58. Gold standard investigation of woman with synthetic prosthesis 👉 MRI 59. FNAC can't differentiate  invasive  from insitu breast cancers.

📝🔴🔴🔴🔴🔴🔴🔴🔴🔴 1. Embryology + Anatomy - Thyroglossal cyst: Most common site = subhyoid. 1- Moves up and down with deglutition because it's in the pretracheal fascia 2- Moves with tongue protrusion because it's connected to the foramen cecum at the tongue base 3- Most common complication: infection. 4- Thyroglossal fistula: never congenital, results from rupture of an infected cyst 5- Can undergo malignant change to PTC = papillary thyroid carcinoma 📍Ectopic thyroid: Most common site = lingual thyroid 📍 Blood supply: 1- Superior thyroid artery → branch of ECA = external carotid artery 2- Inferior thyroid artery → branch of thyrocervical trunk = 1st branch of subclavian artery 2. Most Common Stuff 1- Most common thyroid disease: SNG = simple nodular goiter 2- Most common thyroiditis: Hashimoto thyroiditis 3- Most common thyroid neoplasm: Papillary carcinoma 4- Most common thyroid tumor in males: Anaplastic carcinoma = undifferentiated 5- Most common site for LN metastasis: central compartment, level VI 3. Carcinomas - Key Differences 🔴Papillary carcinoma (PTC) - Most differentiated type - Main cause: irradiation - Age: young age, good prognosis - Most TSH dependent, then follicular - Spread: lymphatic first - Young patient + solitary nodule → think papillary 🔴 Follicular carcinoma (FTC) - Main cause: iodine deficiency, often arises from long-standing SNG - Spread: hematogenous → skull metastasis is classic 🔴 Medullary carcinoma (MTC) - Hereditary/familial type - APUD tumor: releases serotonin → diarrhea - Amyloid + hyaline deposits in stroma - Spread: early lymphatic to mediastinum, then blood - MEN 2 syndromes: - MEN 2A: MTC + parathyroid hyperplasia + pheochromocytoma - MEN 2B: MEN 2A + mucosal neuromas 🔴Anaplastic carcinoma - Most aggressive, undifferentiated - Mimicked by Riedel's thyroiditis - Does NOT respond to RAI 4. Treatment Pearls 1- TTT of PTC and FTC: Total thyroidectomy + RAI = radioactive iodine ablation 2- MTC and Anaplastic: do NOT respond to RAI Quick memory hooks: 1- "P" things: Papillary = Young, Prognosis good, Proliferates in lymphatics, Post-radiation 2- "F" things: Follicular = Iodine deficiency, Flies through blood to bone/skull 3- "M" things: Medullary = MEN, Multiple endocrine, Makes serotonin and amyloid.

#Monteggia_fracture_Dislocation AP view

#TOS

Q: Write short notes on Thoracic Outlet Syndrome (TOS) under the following headings: definition, pathophysiology, classification, clinical features, investigations, and management. 🟨 1. Definition: Thoracic Outlet Syndrome (TOS) is a condition caused by compression of the neurovascular bundle (brachial plexus, subclavian artery, or vein) at the thoracic outlet, usually between the anterior and middle scalene muscles. 🟨 2. Pathophysiology: 🔹Compression may involve: 💟 Brachial plexus → neurological symptoms 💟 Subclavian artery → arterial insufficiency 💟 Subclavian vein → venous obstruction Occurs at three anatomical spaces in the thoracic outlet. 🔹Symptoms depend on: 🔥 Degree of compression 🔥 Duration 🔥 Frequency of compression 🟨 3. Classification: 💟 Neurogenic TOS (most common) 💟 Arterial TOS 💟 Venous TOS 🟨 4. Clinical Features: ♥ General features: ☆Age: 20–50 years ☆More common in females ☆Usually unilateral ♥ Symptoms: ★Pain, paresthesia, weakness in upper limb ★Shoulder and arm discomfort ★Worsened by: 💟 Overhead activity 💟 Carrying heavy objects 💟 Poor posture 💟 Prolonged positioning 🟨Type-specific features: 💟 Neurogenic TOS: ★Pain + tingling + weakness ★Neck pain, occipital headache ★Coldness and color changes (Raynaud-like) 💟 Arterial TOS: ★Ischemia: pallor, coldness, claudication ★Reduced or absent pulses 💟 Venous TOS: ♦ Arm swelling (most important sign) Cyanosis ♦Dilated superficial veins 🟨 5. Causes / Mechanism: ♥ Traumatic: whiplash, fractures ♥ Congenital: cervical rib, abnormal C7 transverse process ♥ Postural causes ♥ Repetitive strain / overuse 🟨6. Investigations: ★ X-ray (neck/chest): cervical rib, bony abnormalities ★ EMG / nerve conduction studies: ulnar neuropathy ★ Diagnosis mainly clinical (history + examination) 💟 7. Special Tests: ♥ Adson’s test → ↓ radial pulse ♥ EAST (Roos test) → pain/paresthesia ♥ Costoclavicular maneuver → pulse changes ♥ Hyperabduction test → ↓ pulse 🟨 8. Management: ♥ A. Conservative (first line): ★Postural correction exercises ★Physiotherapy ★Avoid aggravating activities ★Analgesics ± muscle relaxants ♥ B. Surgical (definitive): For severe or resistant cases: ★ First rib resection ★ Scalenectomy ★ Vascular reconstruction (if needed)

🟪Thoracic Outlet Syndrome (TOS)🟪 ❇️Definition GROUP OF NEUROLOGIC AND VASCULAR SYMPTOMS OF THE UPPER EXTREMITY CAUSED BY COMPRESSION OF THE BRACHIAL PLEXUS AND THE SUBCLAVIAN VESSELS BY BONY OR SOFT TISSUE ANOMALIES AS THEY TRAVERSE THE THORASIC OUTLET REGION AT THE BASE OF THE NECK. ❇️Types: 🛑Neurogenic TOS (most common ~95%) → compression of Brachial plexus 🛑Venous TOS (~4%) → compression of subclavian vein → thrombosis 🛑Arterial TOS (~1%) → compression of subclavian artery → ischemia ❇️ Etiology / Causes 🌐Congenital / Anatomical 🟡Cervical rib (extra rib) 🟡Abnormal 1st rib or scalene muscle hypertrophy 🌐Acquired / Postural ▫️Trauma (clavicle fracture, whiplash) ▫️Repetitive overhead activity (athletes, manual labor) ▫️Posture: rounded shoulders, drooped scapula ❇️ Pathophysiology ➡️Compression at 3 possible sites: 🌹Interscalene triangle → between anterior & middle scalene + 1st rib 🌹Costoclavicular space → clavicle & 1st rib 🌹Subcoracoid (retropectoralis minor) space → under pectoralis minor tendon ➡️Consequence: 📒Neurogenic TOS → paresthesia, weakness, atrophy of hand muscles 📒Venous TOS → swelling, cyanosis, thrombosis 📒Arterial TOS → ischemia, cold hand, claudication ❇️ Clinical Features 🔹 Neurogenic TOS 🔅Pain, numbness, tingling → C8-T1 distribution 🔅Weakness → grip, intrinsic hand muscles (atrophy of thenar & hypothenar eminence) 🔅Positives tests: ♥Adson’s test → radial pulse ↓ with neck rotation & inspiration ♥Roos/Elevated arm stress test → reproduces symptoms 🔹 Venous TOS (Paget-Schroetter syndrome) ★Swelling, cyanosis, heaviness of arm ★Dilated superficial veins Often in young athletes 🔹 Arterial TOS ☆Cold, pale hand, decreased pulses ☆Pain during activity (claudication) Rare, usually with cervical rib ❇️Diagnosis ♤Clinical → high suspicion ♤Imaging / Tests: ♤X-ray → cervical rib, clavicle fracture ♤CT / MRI → soft tissue compression ♤Doppler US / Venography / Arteriography → vascular TOS ♤Electromyography → neurogenic TOS ❇️ Management 🔹 Conservative (First-line for neurogenic) Physical therapy → posture correction, shoulder strengthening, scalene stretches Avoid overhead activity Analgesics / NSAIDs for pain 🔹 Surgical (Indications) Persistent symptoms despite conservative therapy Vascular TOS (arterial / venous) Cervical rib / bone anomaly causing compression Common procedures: First rib resection + scalenectomy Clavicle resection (rare) Venous thrombectomy / bypass if venous TOS with thrombosis ➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️❇️❇️❇️❇️❇️❇️❇️✳️✳️✳️✳️✳️✳️✳️✳️ 🛑🛑Clinical Tips ★Neurogenic TOS → most common, but often subtle → high suspicion in young adults with chronic arm pain/weakness ★Venous TOS → think in athletes with sudden arm swelling ★Arterial TOS → look for cold, pale hand with diminished pulses 🛑🛑Clinical Pearls 💎 ★Cervical rib is a red flag → always check X-ray ★Adson’s test not 100% specific → combine with other maneuvers ★Neurogenic TOS → may mimic carpal tunnel or cervical radiculopathy 🛑🛑 MCQ Focus 🔥 ★Most common type → Neurogenic (~95%) ★Compression site → Interscalene triangle ★Positive tests → Adson, Roos, Wright ★Classic presentation → paresthesia + hand weakness + pain ★Young athlete + sudden arm swelling → Venous TOS 🛑🛑MCQ Traps ⚠️ ★Arterial TOS is RARE, don’t overestimate prevalence ★Neurogenic TOS → often normal pulses ★Positive Adson’s test alone ≠ diagnosis 🛑🛑 Quick Summary 🎯 ★TOS = compression at thoracic outlet → neurogenic (95%), venous (4%), arterial (1%) ★Symptoms depend on structure compressed ★Diagnosis → clinical + imaging ★Management → PT for neurogenic, surgery for vascular / failed conservative.

🧩Mnemonics Esophageal cancer; Etiologic Factors 🇮🇷PERSIAN GULF 🌊🌴 🥇Papillomavirus(HPV), Prior gastrectomy, Poor oral hygiene 🥇Epidermal growth factor polymorphisms 🥇Raised BMI(Obesity) 🥇Smoking, Socioeconomic factors and Demographic 🥇Intake(dietry factors), Infection with Helicobacter pylori, Inherited type of tylosis (Howell-Evans syndrome) 🥇Alcohol, Alendronate(oral bisphosphonates), Atrophic gastritis, Acid hypersecretory states(ZES) 🥇Nitrosative stress 🥇GERD 🥇Upper aerodigestive tract cancer, Underlying esophageal disease(achalasia, stricture) 🥇LES pressure decrease 🥇Familial(Hereditary factors; PJS) #surgery #gastroenterology 〰〰〰〰〰〰〰〰〰〰〰 ©

#Catheters