Pathology
for Dental Students
Study questions: Endocrine system pathology
Answers are
here
.
1.
All of the following anterior pituitary hormones are controlled by hypothalamic releasing factors except:
A)
Thyrotropin
B)
Prolactin
C)
Growth Hormone
D)
ACTH
E)
Gonadotropin
2.
Hypopituitarism in the adult is caused most frequently by:
A)
Postpartum pituitary necrosis
B)
Functional pituitary adenomas
C)
Non-functional pituitary adenomas
D)
Empty sella syndrome
E)
Pituitary stalk section secondary to head trauma
3.
Chronic adrenal insufficiency (Addison's Disease) in the U.S. population is most frequently due to:
A)
Adrenal tuberculosis
B)
Secondary to hypopituitarism
C)
Waterhouse-Friderichensen syndrome
D)
Autoimmune destruction of the adrenals
E)
Destruction of the adrenals by metastatic tumor
4.
On a world-wide basis, enlargement of the thyroid (goiter) is caused most frequently by:
A)
Benign thyroid adenomas
B)
Iodine deficiency
C)
Nutritional goiterogens
D)
Hashimoto thyroiditis
E)
Papillary carcinoma of the thyroid
5.
Hashimoto's disease
A)
Is an autoimmune process
B)
May result in hypothyroidism
C)
Both
D)
Neither
6.
Pheochromocytoma
A)
Is one of the most frequent solid tumor malignancies of childhood
B)
Can cause hypertension
C)
Can cause Cushing's syndrome
D)
All of the above
7.
The earliest symptom of a non-functioning (non-hormone-producing) pituitary adenoma is usually:
A)
Headache
B)
Visual field defects
C)
Cushing's syndrome
D)
Acromegaly
E)
Diabetes insipidus
8.
In congenital adrenal hyperplasia
A)
ACTH is suppressed by increased adrenal hormone feedback
B)
The congenital defect is situated in the hypothalamus and leads to a dysregulation of the
hypothalamic-pituitary-adrenal axis
C)
Cortisol production is greatly increased
D)
The most frequent defect is a 21-hydroxylase deficiency
E)
The hyperplastic glands occasionally become malignant
9.
Hashimoto's thyroiditis
A)
Leads to a painful swelling of the thyroid
B)
Is a self-limited disease which takes its course in a matter of a few months
C)
Is the most frequent cause of hypothyroidism in adult women
D)
Requires removal of the chronically inflamed, enlarged thyroid
E)
Is a frequent precursor of follicular carcinoma
10.
Hyperthyroidism in Graves' Disease is due to
A)
An overproduction of thyroid stimulating hormone (TSH) of the pituitary
B)
An autoantibody binding to the TSH receptor
C)
A thyroid adenoma
D)
An alteration in the peripheral tissue response to thyroid hormones
E)
A hypothalamic defect
11.
Worldwide, the most frequent cause of clinical goiter is
A)
Thyroiditis
B)
Benign thyroid adenomas
C)
Iodine deficiency
D)
Graves' disease
E)
Congenital enzyme defects
12.
Hashimoto thyroiditis
A)
Frequently leads to the development of malignant lymphoma
B)
Leads to the development of follicular thyroid carcinoma
C)
Is characterized by cells with atypical nuclei which are pre-malignant
D)
Occurs predominantly in young women in the childbearing age
E)
Is the most frequent cause of hypothyroidism in middle aged and elderly women
13.
Hypothyroidism may be:
A)
Iatrogenic
B)
Autoimmune
C)
Both
D)
Neither
14.
All of the following are true regarding Graves disease EXCEPT:
A)
Anti TSH receptor antibodies
B)
l0:l male:female incidence
C)
Strong association with HLA DR3
D)
Commonly associated with other autoimmune disorders
15.
Excess hormone production by the anterior pituitary until proven otherwise
A)
Is most commonly caused by an adenoma
B)
Is most commonly caused by a carcinoma
C)
Both
D)
Neither
16.
Hypopituitarism may be caused by
A)
Shock
B)
Non-functioning pituitary adenomas
C)
Both
D)
Neither
17.
Adenomas of the pituitary can cause disease
A)
By mass effect
B)
By secretory function
C)
Both
D)
Neither
18.
Pituitary adenomas may produce
A)
Diabetes insipidus
B)
Visual field defects
C)
Galactorrhea
D)
Acromegaly
E)
All of the above
19.
Which of the following is true regarding type 2 diabetes?
A)
Shows a prediabetic state beginning in young adulthood
B)
Shows a high cure rate by pancreatic transplant
C)
Is frequently seen with obesity and hypertension
D)
Is frequently the result of chronic stress with hypercortisolism
E)
Is a syndrome seen in the elderly with hyperglycemia from multiple causes
20.
Which of the following is true regarding Type I diabetes?
A)
May be an autoimmune disease
B)
Responds well to oral hypoglycemic agents
C)
Will not lead to acidosis and coma
D)
Shows normal islet morphology
E)
Is the product of a multifactorial endocrine dysregulation
21.
Which of the following is true regarding Type I diabetes?
A)
Beta cells are reduced or absent
B)
Onset is usually before age of 20
C)
If untreated may lead to ketosis and coma
D)
Autoimmune factors play a role in etiology
E)
All of the above
22.
Which of the following is true regarding Type 2 diabetes?:
A)
Rare in patients over age 70
B)
Genetic factors play a role in etiology
C)
Serum insulin levels are markedly decreased
D)
Insulin receptors on cell membranes are upregulated
E)
Even after long duration of the illness, does not show the same severe complications as Type l diabetes