Chapter 12 The Face And Neck Flashcards
______is the most common form of salivary gland cancer ?
Mucoepidermoid carcinoma
The superior extension of the thyroid isthmus is referred to as:
Pyramidal lobe
What type of gland is the thyroid gland?
Endocrine
_____is an autoimmune disease that affects the glands that produce moisture, leading to dysfunction of the salivary glands and dryness of eyes, nose, and skin
Sjogren syndrome
______is the hormone that is the most abundantly produced by the thyroid?
Thyroxine
Hormones produced by the thyroid:
- Thyroxine
- Triiodothyronine
- Calcitonin
Psammoma bodies are:
Punctate calcific deposits
What is the first branch of the external carotid artery?
Superior thyroid artery
Which muscles are located anterior to the thyroid gland?
Strap
Term for stones within the salivary duct?
Sialolithiasis
A thyroid isthmus that measures greater that ______is indicative of thyroid enlargement
10mm
Which vascular structure is located closest to the thyroid lobes?
Common carotid artery
What structure may be confused for a thyroid or parathyroid mass because of its relationship to the trachea and the posterior aspect of the left thyroid gland?
Esophagus
Which muscles are located lateral to each thyroid lobe?
Sternocleidomastoid
Which muscles are located posterior to each thyroid lobe?
Longus colli
The thyroid gland utilizes _______to produce its hormones?
Iodine
______is the duct that drains the submandibular gland?
Wharton duct
In the presence of Hashimoto thyroiditis, the thyroid produces:
Too few thyroid hormones
The fluid produced by the thyroid gland that contains thyroid hormones is referred to as:
Colloid
What muscle does fibromatosis colli mostly affect?
Sternocleidomastoid
What gland is located immediately anterior to the ear?
Parotid gland
What is the most common cause of hyperthyroidism?
Graves disease
What is the most common cause of hypothyroidism? (Name)
Hashimoto thyroiditis
What is the most common form of thyroid cancer?
Papillary
What abnormality is associated with the sonographic findings of a thyroid inferno?
Graves disease
Describe the normal appearance of a cervical lymph node:
Hypoechoic, oblong structure with a distinct echogenic hilum
A normal lymph node will not measure greater than:
10mm
Parathyroid glands control the release and absorption of which nutrient?
Calcium
______ would more likely be a malignant thyroid nodule?
Cold nodule
A cystic mass noted at the mandibular angle is most likely a :
Branchial cleft cyst
Normally, how many parathyroid glands are found within the adult neck?
4
Benign congenital cysts located superior to the thyroid gland near the hyoid bone are referred to as:
Thyroglossal duct cysts
Because of the mass within the sternocleidomastoid muscle, the muscle shortens, resulting in the twisting of the infants chin toward the nonaffected side termed:
Congenital muscular torticollis
Where are Branchial cleft cysts most often found?
Near the angle of the mandible and appear as an anechoic mass with posterior enhancement
_____are benign congenital cysts located within the midline of the neck superior to the thyroid gland and are typically located below the hyoid bone
Thyroglossal duct cysts
Low level of calcium is known as:
Hypocalcemia
An elevated level of calcium is referred to as:
Hypercalcemia
The parathyroid glands serve as:
Calcium regulators for the body
Normal parathyroid glands will measure:
5.0mm X 3.0mm X 1.0mm
Nodular hyperplasia the most common cause of:
Thyroid nodules
The bilateral sublingual glands are located:
Just under the tongue and anterior to the submandibular glands
The submandibular gland is drained by the :
Wharton duct
The paired bilateral sternocleidomastoid muscles are located:
Posterior to the parotid glands
The _____ are the largest of the salivary glands and are consequently the most likely to be analyzed with sonography
Parotid gland
The thyroid consists of multiple follicles that contain a fluid called:
Colloid
The much larger stenocleidomastoid muscular pass lateral to the:
Thyroid lobes
The longus colli muscles are seen:
Posterior to each lobe
_____is a condition that results from the overproduction of the thyroid hormones
Hyperthyroidism
A thyroid volume can be calculated using the formula:
Lenght X Width X Thickness X 0.529
_____is a condition that results from the under production of thyroid hormones
Hypothyroidism
Normal thyroid tissue is:
Homogenous and consists of medium to high level echogenicities similar to testes
A thyroid and neck sonogram is performed with a _____ transducer
High-frequency linear
An isthmus that measures greater than _____may be indicative of thyroid enlargement
10cm
Causes of Goiter include:
*Iodine deficiency
*Graves disease
*Thyroiditis
______is defined as an enlarged, hyperplastic thyroid gland
Goiter
Clinical findings of a parathyroid adenoma
- Elevated serum calcium
- Elevated PTH
Clinical findings of Hashimoto thyroiditis
- Depression
- Increased cold sensitivity
- Elevated blood cholesterol levels
- Slight weight gain may occur
- Puffy face and puffiness under the eyes
Clinical findings of Graves disease
- Bulging eyes
- Heat intolerance
- Nervousness
- Weight loss
- Hair loss
Clinical findings of fibromatosis colli
- Pediatric palpable neck mass
- Torticollis (twisted neck with the chin angled to the nonaffected side)
Clinical findings of abnormal lymph nodes
- Palpable neck mass (possibly)
- Enlarged nodes may be painful
Clinical findings of a thyroglossal duct cyst
- Palpable mass within the midline of the neck superior to the thyroid gland
- Infected cysts may be painful
Clinical findings of a Branchial cleft cysts
- Palpable neck mass located near the angle of the mandible
- Infected cysts may be painful
Clinical findings of a Goiter
- Palpable (and possibly visually) enlarged thyroid gland
- Dyspnea
- Dysphagia
- Feeling of tightening in the throat
- Coughing
- Hoarseness
Sonographic findings of fibromatosis colli (3):
- Fusiform-shaped mass within the sternocleidomastoid muscle
- calcifications that shadow
- hyperemic pattern
Sonographic findings of a brachial cleft cyst
- Anechoic mass near the angle of the mandible
Sonographic findings of thyroglossal duct cyst
- Anechoic, well-defined and unilocular cyst with posterior enhancement
- May have internal components
Sonographic findings of abnormal lymph nodes (5):
- Enlargement of the node > 1cm
- Round shaped
- Loss of the echogenic hilum
- Calcifications
- May be hyperemic or demonstrate abnormal vascular patterns with color doppler
Sonographic findings of a parathyroid adenoma
- Hyperechoic mass adjacent to the thyroid
Sonographic findings of a goiter
- Enlarged thyroid gland (isthmus that exceed 1cm in the anteroposterior plane)
- Diffusely heterogeneous echotexture
- Multiple nodules with cystic and solid components
Sonographic findings of graves disease
- Enlarged gland
- Heterogeneous or diffusely hypoechoic echotexture
- Thyroid inferno
Sonographic findings of Hashimoto thyroiditis
1.Mild enlargement of the thyroid gland (initially)
2. Heterogenous echotexture
3. Multiple ill-defined hypoechoic regions separated by fibrous hyperechoic tissue
4. Hypervascular gland