pathology of endocrine glands - iii
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Pathology of Endocrine Glands - III. Adrenals. Endocrine Pancreas. Jaroslava Dušková Inst. Pathol. 1st Med. Fac. Charles Univ. Prague. Adrenals. cortex definitive fetal (90% regression by 6 months of age) neonate 8g (3,5kg) 0,002 - PowerPoint PPT PresentationTRANSCRIPT
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Pathology of Endocrine Glands - III
Adrenals
Jaroslava Dušková Inst. Pathol. 1st Med. Fac. Charles Univ. Prague
Endocrine Pancreas
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Adrenals cortex
– definitive– fetal (90% regression by 6 months of age)
neonate 8g (3,5kg) 0,002
healthy adult 9g (70kg) 0,0001– zones G,F,R
20x medulla
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norm hypoplasia congenitalis
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Adrenals - syndromes hypofunction - panhypocorticalism
– acute– chronic – Adison
– peripheral– central
hyperfunction– AGS– Cushing– hyperaldosteronism Conn, Bartter
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m Adison: peripheral central
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Adrenals - syndromes hypofunction - panhypocorticalismus
– acute– chronic – Adison
– periferic– central
hyperfunction– Cushing– hyperaldosteronism Conn, Bartter– AGS
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WHO Clasification of Tumours of the Adrenal Gland (WHO 2004)
Adrenal cortical tumours Adrenal cortical carcinoma Adrenal cortical adenoma
Adrenal medullary tumours malignant phaeochromocytoma benign phaeochromocytoma composite phaeochromocytoma/paraganglioma
Extra-adrenal paraganglioma carotid body jugulotympanic vagal laryngeal aorticopulmonary cauda equina…..
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Adrenal Cortical Carcinoma M8370/3
two peaks of incidence – middle to old age & preschool children
mostly hormonally active – androgens only– androgens + glucocorticoids– androgens + glucocorticoids+mineralocorticoids– estrogens (exceptional)
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Adrenal Cortical Carcinoma M8370/3
Malignancy criteria high nuclear grade (Fuhrman) mitoses incl. atypical diffuse architecture necrosis invasion into veins, capsule
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m. Cushing periph. hypothalamic
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m. Cushing paraneopl.15% pituitary C.>50%
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Androgen overproduction AGS
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WHO Clasification of Tumours of the Adrenal Gland (WHO 2004)
Adrenal cortical tumours Adrenal cortical carcinoma Adrenal cortical adenoma
Adrenal medullary tumours malignant phaeochromocytoma benign phaeochromocytoma composite phaeochromocytoma/paraganglioma
Extra-adrenal paraganglioma carotid body jugulotympanic vagal laryngeal aorticopulmonary cauda equina…..
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PheochromocytomaDef.:benign tumour deriving from chromaffin cells
(intraadrenal paraganglioma)
Clin.: resistence, hypertensionMacro: whittish, solid, regressive changes
Micro: solid alveolar (Zellballen)Behaviour: benign
(15% bilateral, 10% children,10% malignant)
part of MEN II and von Hippel-Lindau disease
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Biology Behaviour of Pheochromocytoma Diffuse growth Central necroses High cellularity Monotonous Fusocellular Mitoses >3/10 HPF Atypical mitoses Invasion into fatty tissue Invasion to vessels Transcapsular invasion Pleomorphic cells Nuclear hyperchromasia
Thompson L.D.R.: Phaeochromocy toma of the Adrenal Gland Scoring Scale (PASS) to separate benign from malignant neoplasms. A clinicopathologic and immunophenotypic study of 100 cases. Am. J. Surg. Pathol. 26(5), 2002, 551-566
PASS score222222221111 PASS score <4/20 benign
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Neuroblastoma (WHO: Neuroblastic tumours of adrenal gland
and sympathetic nervous system)Def.: childhood embryonal tumours of migrating neuroectodermal cells
derived from the neural crest and destined for the adrenal medulla and sympathetic nervous system
Age /sex – 96% in the 1st decade , no sex predilectionIncidence: most common solid extracranial malignant tumours during
the first two years of lifeHistogenesis: see definitionClinic: palpable mass (retroperit, abd., cervical), X-ray - thoracicMacro: soft gray-tan mass, regressive changesMicro: undiff. + differentiating neuroblasts
Variants: neuroblastoma (undiff.), ganglioneuroblastoma intermixed, ganglioneuroblastoma nodular, ganglioneuroma
Behaviour: malignant, dependent on age and histology variant
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Islets of Langerhans (1869)
adults 100 000 -1000 000 cell types:
B - insulin
A - glucagon
D – somatostatin
PP – pancreatic polypeptide
D – vasoactive intestinal polypeptide
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Islets of Langerhans -
regressive changes
fibrosis (postinflamm.) - DM I mucoviscidosis DM frequency 10x
hyalinosis, amyloidosis
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Islets of Langerhans - progressive changes
hyperplasia – diabetic embryopathy
nesidioblastosis
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Islets of Langerhans - tumours
nesidioma ( event. in MEN I)
insulinoma, glucagonoma,
somatostatinoma,VIPoma, PP-oma, G cells -
gastrinoma, EC – serotonin - carcinoid
neuroendocrine carcinoma
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New classification of GastroEnteroPancreatic NeuroEndocrine Neoplasms GEP –NEN (2010)
1. NeuroEndocrine Tumour NET 1. NET G1 (carcinoid) - M8240/3
1. if hormonally active – insulinoma, gastrinoma, glucagonoma, somatostatinoma, VIPoma… /Mitoses <2/10HPF, Ki67 <2%/
2. NET G2 - formerly well diff. neuroendocrine carcinoma - M 8249/3 /Mitoses >2/10HPF, Ki67 >20%/
2. NeuroEndocrine Carcinoma NEC1. large cell NEC - M8013/32. small cell NEC - M8041/3
3. Mixed AdenoNeuroEndocrine Carcinoma MANEC M8244/3
Exceptions: Tubular appendical carcinoid M8245/1; L-cell NET PP/PYY M8152/1
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Islets of Langerhans - syndromes hyperfunction - insulinoma
– hypoglycemia (weekness , sweating, tremor, coma)
– Zollinger-Ellison, Werner Morrison, glucagonoma
hypofunction – absolute or relative insulin lack ( DMI/II or glucagonoma)hyperglycemia – acute : polydipsia, ketoacidosis, coma, liver
steatosis , brain edema
– chronic: diabetes mellitus: microangiopathy, macroangiopathy, neuropathy,
retinopathy, embryopathy
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Diabetes mellitus
Def.:
group of disorders with glucose intolerance in common
---------------Chronic hyperglycemia and
disturbances of carbohydrate, protein, and fat metabolism.
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Diabetes mellitus - types
DM I – IDDM – juvenile DM II – NIDDM -(+MODY)
Other – secondary- pancreatic disease, drugs, chemicals
Gestational - GDM
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Diabetes - detailed classification1. Type I Diabetes
1. beta cell destruction
2. Type II- Diabetes1. beta +insulin resistence
3. Genetic Defects of Beta Cell Function
1. Maturity Onset Diabetes of the Young (type 1-6 with known mutations)
2. Maternaly inherited diabetes and deafness due to mitochondrial mutations
3. Defects in proinsulin conversion
4. Insulin gene mutation
4. Insulin Receptor Mutations
5. Exocrine Pancreas Diseases1. Chronic pancreatitis
2. Pancreatectomy
3. Neoplasia
4. Cystic fibrosis
5. Hemochromatosis
6. Fibrocalculous pancreatopathy
6. Endocrinopaties1. Acromegaly
2. Cushing syndrome
3. Hyperthyroidism
4. Pheochromocytoma
5. Glucagonoma
7. Infections1. CMV
2. Coxsackie B
3. Congenital rubella
8. Drugs1. Glucocorticoids
2. Thysroid hormones
3. Beta-adremergic agonists
9. Genetic Syndromes Associates with Diabetes
1. Down syndrome
2. Klinefelter syndrome
3. Turner syndrome
10. Gestational Diabetes
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Diabetes mellitus - complications
acute– hypoglycemia (DM I and insulin treatment)– diabetic ketoacidosis : lack of insulin – increased
release of fatty acids –increased ketone formation – metabolic acidosis
chronic– AGE – Advanced Glycosylation End-products –
diabetic micro- and macroangiopathy – neuropathy
– infection
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Pešková M., Hvižď R., Dušková, J. Malignant somatostatinoma (brief overview and a case review)
Rozhl Chir. 2007 Dec;86(12):643-7. Czech.
Male 73
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well differentiated endocrine carcinoma of pancreas headmetastasizing into peripancreatic lymph nodes.
T 99 M 81503
Dg.:
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Case Report
woman 26 yrs
N 571/92
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History - 1.
mononucleosis in the childhood 2 yrs prior to death during her 9th week
of pregnancy repetitive amentia statuses, hospitalized in the Psychiatry Clinic
hypoglycemia 1,2mmol/l found transferred to General Medicine Clinic two weeks later gravidity interruption
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History - 2.
explorative laparotomy - tumour of the pancreas with liver metastases
no tumour in the biopsy sample taken next two monts – cycles of chemotherapy,
the hormonal activity of the neoplasm dissappeared
progression of the neoplasm with the gastric wall infiltration
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History - 3.
hormonal activity of the neoplasm
reappeared
cytostatics administered into a. hepatica
death two years from the onset of the
disease
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C- peptide
proteolytic phragment of proinsulin secreted (equimollar quantities) by beta-cells of Langerhans islets
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Diagnosis
Morbus principalis Carcinoma neuroendocrinum parvocellulare
pancreatis ad parietem ventriculi et reproperitoneum progressum
ComplicationesMetastases carcinomatosae lnn. mesentericorum, hepaticorum, iliacorum. Hyperinsulinismus.
Causa mortis Generalisatio carcinomatis
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Hyperinsulinism
due to pancreatic tumour– mostly B-cell NESIDIOMA (insulinoma) - BENIGN– rare in pregnancy– malignant B-cell tumour
neuroendocrine carcinoma / nesidioblastoma extremely rare
paraneoplastic hypoglycemia– mesenchymal retroperitoneal, adrenocortical,
GIT tumours