Prof. Dr. Ahmet Özdoğan

Referans

القاموس الطبي

تعريفات واضحة للمصطلحات الطبية الشائعة في أمراض الأنف والأذن والحنجرة وجراحة الغدة الدرقية وأورام الرأس والرقبة.

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Rhinoplasty & Nasal Surgery

105 seçili terim

Transdomal Suture

The transdomal (intradomal) suture passes through each dome separately, narrowing dome width and increasing tip projection; applied with 5-0 PDS horizontal mattress.

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Nasal Tip Complex

The nasal tip complex encompasses the lower lateral cartilages, overlying soft tissue, and skin envelope as a unit; graft and suture decisions must consider this tripartite unity.

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Nasal Skin Analysis

Thin or thick nasal skin and sebaceous gland density determine tip refinement outcomes in rhinoplasty; Fitzpatrick classification helps predict scar risk.

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Rhinoplasty Inflammation Management

Perioperative dexamethasone 8 mg, taping protocol, and lymphatic massage after three weeks — evidence-based approaches in rhinoplasty inflammation management.

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Nasion and Radix Aesthetics

Ideal radix height is 9–14 mm from the corneal plane; the nasofrontal angle and radix position are critical parameters determining nasal profile balance.

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Pre-Rhinoplasty Preparation

Pre-rhinoplasty preparation requires 2-week aspirin/NSAID cessation, blood tests, five-angle photography protocol, digital morphing, and comprehensive informed consent.

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Rhinoplasty Contraindications

Active BDD, recent isotretinoin use (6-month wait), active infection, incomplete facial growth (<18 years), and uncontrolled systemic disease are rhinoplasty contraindications.

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Crooked Nose Correction

In C-type or S-type deviation, asymmetric osteotomies, extracorporeal septoplasty for severe cases, and camouflage grafts are used; revision rates can reach 20%.

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Nasal Analysis Parameters

Comprehensive nasal analysis includes: nasofrontal 115–130°, nasolabial 90–110° (gender-specific), Goode tip projection 0.55–0.60, alar base=intercanthal distance, and alar-columellar relationship.

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Thyroid & Parathyroid

78 seçili terim

Thyroidectomy

Surgical removal of all (total thyroidectomy) or part (partial/lobectomy) of the thyroid gland.

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Thyroid Nodule

An abnormal growth of tissue within the thyroid gland, most often benign; evaluation with ultrasound and fine-needle aspiration when indicated.

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Papillary Thyroid Carcinoma

The most common type of thyroid cancer; generally carries a good prognosis and is managed with surgery and radioactive iodine when indicated.

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Hashimoto's Thyroiditis

An autoimmune condition in which the immune system produces antibodies against the thyroid gland; the most common cause of hypothyroidism.

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Graves' Disease

An autoimmune hyperthyroidism caused by stimulating antibodies against TSH receptors; may be associated with exophthalmos.

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Hyperthyroidism

A condition in which the thyroid gland produces excess hormones (T3/T4), accelerating metabolism and causing various systemic symptoms.

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Hypothyroidism

A condition in which the thyroid gland produces insufficient hormones; presents with fatigue, weight gain and cold intolerance.

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Goitre

Abnormal enlargement of the thyroid gland; may be diffuse or nodular and can present with difficulty swallowing or a sensation of fullness in the neck.

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Recurrent Laryngeal Nerve (RLN)

The critical nerve innervating the vocal cords and central to thyroid-surgery safety; injury causes hoarseness or vocal cord paralysis.

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Fine Needle Aspiration Biopsy (FNAB)

A minimally invasive diagnostic procedure in which a fine needle removes cells from a thyroid nodule under ultrasound guidance.

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Radioactive Iodine (RAI) Therapy

A treatment using the I-131 isotope that selectively destroys thyroid tissue; used for hyperthyroidism or as adjuvant therapy after thyroid cancer surgery.

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Hypoparathyroidism

Insufficient PTH secretion from the parathyroid glands causing low blood calcium; an important complication of thyroidectomy.

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Thyroid Ultrasound

Core imaging modality evaluating thyroid nodules, size and architecture; B-mode and Doppler findings are interpreted in the ACR TI-RADS context.

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TI-RADS Classification

ACR-developed standardized classification system that scores thyroid nodules by sonographic features to estimate malignancy probability and clinical-review priority.

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Bethesda System for Thyroid Cytopathology

International reporting system that categorizes thyroid fine-needle aspiration cytology results into six standard categories (I-VI), adding malignancy-risk context for clinical decision-making.

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Papillary Thyroid Carcinoma

Most common thyroid cancer type; associated with RET rearrangements and BRAF V600E mutation, showing lymph node spread but rare distant metastasis, with excellent long-term prognosis.

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Follicular Thyroid Carcinoma

Differentiated thyroid carcinoma showing vascular or capsular invasion, capable of hematogenous distant metastasis and potentially responsive to radioactive iodine in selected cases.

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Medullary Thyroid Carcinoma

Rare thyroid cancer arising from parafollicular C cells, secreting calcitonin, associated with RET proto-oncogene mutation and MEN2 syndrome, unresponsive to RAI.

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Anaplastic Thyroid Carcinoma

The most aggressive of all thyroid cancers; rapidly growing, airway-threatening, and approached with BRAF V600E targeted therapy, but with extremely poor prognosis.

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Hürthle Cell Carcinoma

Aggressive variant of follicular carcinoma showing oncocytic differentiation; RAI-resistant, prone to hematogenous metastasis, with a more aggressive clinical course.

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Primary Thyroid Lymphoma

Rare thyroid malignancy developing on a Hashimoto background, with DLBCL or MALT histology, primarily treated with chemotherapy and/or radiotherapy, with a very limited role for surgery.

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Multinodular Goiter

Growth of the thyroid gland with multiple nodules; common thyroid pathology interpreted for compressive symptoms, retrosternal extension, dominant nodule rule and toxic transformation.

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Toxic Adenoma (Plummer Disease)

Single autonomously functioning thyroid nodule producing thyroid hormone independently of TSH; scintigraphy, hormone profile and patient factors are assessed together to choose a treatment direction.

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Toxic Multinodular Goiter

Common in elderly patients, hyperthyroidism from autonomous hormone production in a multinodular thyroid gland; treatment direction depends on gland volume, compressive symptoms and patient risks.

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Subacute / De Quervain Thyroiditis

Self-limiting inflammatory disease following viral infection, characterized by thyroid pain and tenderness, elevated ESR and transient hyperthyroid-hypothyroid phases.

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Silent / Painless Thyroiditis

Autoimmune thyroid inflammation without thyroid pain, common in the postpartum period, with transient hyperthyroid phase followed by a hypothyroid phase.

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Riedel's Thyroiditis

Rare inflammatory condition invading the thyroid and surrounding structures with fibrous tissue, forming a wood-hard mass, in the IgG4-related disease spectrum.

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Thyroid Hormones (T3/T4/TSH/TRH)

Hormonal cascade forming the hypothalamus-pituitary-thyroid axis; TRH stimulates TSH; TSH regulates production of thyroxine (T4) and triiodothyronine (T3). Free fractions (fT4, fT3) have clinical significance.

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Thyrotoxicosis

Clinical syndrome caused by excess thyroid hormone levels; may originate from Graves' disease, toxic adenoma or thyroiditis and requires careful assessment for thyroid storm risk.

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Thyroid Storm

Life-threatening acute thyrotoxicosis crisis that can develop after a trigger in inadequately controlled hyperthyroidism; the Burch-Wartofsky score helps structure clinical suspicion.

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Hypothyroidism Management

Hypothyroidism management strategy based on levothyroxine dosing and TSH targets; individualized monitoring framework according to age, cardiac status and thyroid cancer risk class.

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Myxedema Coma

Life-threatening complication of severe decompensated hypothyroidism; emergency condition with hypothermia, altered consciousness, hypoventilation and cardiovascular depression requiring ICU care and IV thyroid hormone.

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Total Thyroidectomy Technique

Standard surgical technique for complete thyroid removal consisting of capsular dissection, RLN identification, parathyroid gland preservation and hemostasis; outcomes depend on surgeon and center experience.

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Hemithyroidectomy (Lobectomy)

Removal of a single thyroid lobe and isthmus; organ-preserving surgical approach preferred for diagnostic purposes, unilateral nodule or selected low-risk thyroid cancers.

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Thyroidectomy Complications

Main complications of thyroid surgery: RLN injury, hypoparathyroidism, neck hematoma, seroma and infection; risk varies by surgical extent and center experience.

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RLN Monitoring (IONM)

Intraoperative neuromonitoring localizing the recurrent laryngeal nerve by electrical stimulation and tracking its functional response during thyroid surgery; LOS change is an important warning for bilateral RLN risk.

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Surgical Hypoparathyroidism

PTH insufficiency developing from parathyroid gland damage or devascularization during thyroidectomy; may be transient or permanent, managed with calcium and active vitamin D replacement.

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Post-Thyroidectomy Hypocalcemia

Low calcium that can occur after thyroidectomy; may present with perioral numbness, hand-foot tingling and muscle cramps.

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Radioactive Iodine (RAI / I-131) Treatment

Selective radiotherapy using I-131 isotope to ablate the gland in hyperthyroidism or destroy residual thyroid tissue after differentiated thyroid cancer surgery; contraindicated in pregnancy.

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