pengantar praktikum endokrin
DESCRIPTION
FK UNSTRANSCRIPT
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PENGANTAR PRAKTIKUMPATOLOGI ANATOMI
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PATHOLOGY• : study (logos); suffering (pathos)• The core of pathology : 1. Etiology (the cause) 2. Pathogenesis (the mechanisms of its
development) 3. Morphologic changes (the structural alterations induced in the cells&organs of the body
4. Clinical significance (the functional consequences of the morfologic changes). 1
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CELLULAR PATHOLOGY
• Normal cell normal homeostasisby its genetic programs of metabolism, differentiation & specialization
• Physiologic stresses >> , or some pathologic stimuli physiologi&morphologic
cellular adaptations
When adaptation is not possible cell injury - reversible injury - irreversible injury
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Adaptation
Normal
Reversible injury
Irreversible injury(cell death : necrosis, or apoptosis)
Point of no return
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CELLULAR CHANGES :• Acute cell injury :
reversible injury
irreversible injury/ cell death : necrosis, apoptosis.• Subcellular alterations in sublethal&chronic injury• Cellular adaptations :
atrophy, hypertrophy, hyperplasia, metaplasia,
dysplasia• Intracellular accumulations :
proteins, lipids, carbohydrates• Pathologic calcification• Cell aging
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CAUSES OF CELL INJURY
• Oxygen deprivation
• Pysical agents
• Chemical agents & drugs
• Infectious agents
• Immunologic reactions
• Genetic derangements
• Nutritional imbalances
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Proses pertumbuhan sel, jaringan & alat tubuh dapat mengalami gangguan/ kondisi patologis, sehingga kita kenal berbagai keadaan sbb :
• APLASIA / AGENESIS• HIPOPLASIA• ATROFI• HIPERTROFI• HIPERPLASIA• METAPLASIA• DISPLASIA• ANAPLASIA
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Approach to Endocrine Pathology
• Some Definitions
• Some Anatomy & Histology (Morphology)
• Some Biochemistry (Chemical Measurements)
• Some Physiology (Regulation)
• The Pathology (Morphology)
• The Laboratory Diagnosis
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Classification of Endocrine Diseases
Hyperfunction (Excess) Hypofunction
– Impaired synthesis or release (deficiency)– Abnormal target tissue interaction (resistance)– Abnormal target tissue response (resistance)
Mass Lesions (Neoplasia)– Non-functioning (No hormone)– Functioning (Hormone)
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Etiology of Endocrine Deficiency & Resistance Syndromes
Hormone Deficiency
1. Autoimmune
Hypothyroidism (Hashimoto’s)
Type I Diabetes Mellitus
2. Post Surgical
Hypoparathyroidism
Hypothyroidism
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Hormone Deficiency
3. Inflammation, Neoplasia
Granulomatous
Non-Functioning Adenoma
Receptor Defect/Resistance
• Type II Diabetes Mellitus
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PRAKTIKUM PATOLOGI ANATOMI
• Perubahan struktur&morfologi pada tingkat :
- jaringan/ organ MAKROSKOPIS
(anatomi)
- sel, subsel MIKROSKOPIS
(histologi,fisiologi, biokimia, biomol)
Untuk membuat diagnosis histopatologi.
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MAKROSKOPIS
• Ukuran, berat.• Bentuk : solid/ padat, kistik, noduler.• Permukaan : rata, berbenjol-benjol,licin• Kapsul : ada/ tidak, utuh/tidak utuh,invasi tumor• Warna• Konsistensi : keras, kenyal, lunak, rapuh.• Jika kistik : dinding tebal, papiler isi : serous, mucin, koloid, darah,dll. lokus : multilokuler, unilokuler
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MIKROSKOPIS
• Jaringan diproses untuk diwarnai dengan pewarnaan rutin atau khusus.
• Diamati dengan mikroskop• Dievaluasi sel dan jaringannya :• Bentuk, diferensiasi, N/C ratio, sitoplasma,
lapisan/ jumlah sel, pola pertumbuhan, inti(nukleus), aktivitas mitosis, ekspresi protein& reseptor, dll.
• Vaskularisasi, invasi vaskular, angiogenesis.• Perubahan neoplastik : jinak, ganas, in situ.
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