History taking specifics and behavioral assessment
The first impression of a patient begins to form during the conversation itself. The physician should pay attention not only to the chronology of the disease development, but also to the psychoemotional status, which is sensitive to hormonal fluctuations.
- Assessment of motor activity and speech: in hyperthyroidism, the patient is restless, emotionally labile, and speaks hurriedly. Conversely, decreased thyroid function (hypothyroidism) makes the person apathetic, sluggish, and lethargic.
- General complaints: nonspecific symptoms often serve as the first reasons for visiting a doctor—weight loss, unexplained fatigue, sleep disorders, and changes in nervous excitability (e.g., in thyrotoxicosis or hypoglycemia).
Systemic complaints as a key to diagnosis
Since the endocrine system regulates the function of the entire body, patient complaints affect a wide variety of target organs:
- Skin and its appendages: intense itching may indicate diabetes mellitus or hyperthyroidism. Dry skin combined with hair loss is characteristic of hypothyroidism and thyroiditis.
- Musculoskeletal system: pronounced joint pain occurs in acromegaly. If the patient complains of bone pain and a tendency to fractures, Cushing's syndrome or hyperparathyroidism should be ruled out. Muscle weakness is typical of hyperaldosteronism and hypercortisolism.
- Reproductive system: in women, hormonal imbalance manifests as amenorrhea (hyperthyroidism, hypercortisolism, hypogonadism) or menorrhagia (hypothyroidism). In men, diabetes mellitus and hypogonadism often lead to impotence.
Physical examination: body habitus, skin, and subcutaneous fat
General examination reveals growth abnormalities, body proportion defects, and specific skin signs.
| Abnormal | Clinical manifestation |
|---|---|
| Pituitary insufficiency | Dwarfism (with preserved normal body proportions) |
| Pituitary hyperfunction (in childhood) | Gigantism |
| Acromegaly (in adults) | Disproportionate enlargement of the hands, feet, and facial skeleton |
Assessment of skin and adipose tissue:
- Hair growth and pigmentation: excessive hair growth (hirsutism) indicates ovarian pathology or Cushing's syndrome. The latter is also characterized by hyperpigmentation, hemorrhages (ecchymoses), and striae—purplish-bluish stretch marks on the abdomen.
- Skin moisture: profuse sweating (hyperhidrosis) is a marker of hyperthyroidism.
- Subcutaneous adipose tissue: excessive fat deposition (obesity) often accompanies diabetes mellitus. Dysplastic obesity with the development of a "moon face" is typical of Cushing's syndrome. Underweight is observed in diabetes, hyperthyroidism, and adrenal insufficiency. Specific dense mucinous edema (myxedema) develops in hypothyroidism.
Local status and involvement of internal organs
Targeted examination includes assessing the thyroid gland (Glandula thyroidea) and screening for eye signs.
- Thyroid gland: size and symmetry of the lobes are evaluated. Palpation determines consistency, presence of nodules, tenderness, and mobility during swallowing. If the goiter is retrosternal, its upper pole is palpated through the jugular notch.
- Ophthalmological markers: exophthalmos indicates hyperthyroidism, periorbital edema indicates hypothyroidism. Diplopia occurs in diabetes and hyperthyroidism.
Systemic complications:
- Cardiovascular system: hyperthyroidism leads to the development of "thyrotoxic heart" with edema, pain, tachycardia, and atrial fibrillation. Arterial hypertension accompanies pheochromocytoma, hyperaldosteronism, and hypothyroidism. Orthostatic hypotension is a marker of adrenal insufficiency. In myxedema, echocardiography may reveal pericardial effusion.
- Gastrointestinal tract and kidneys: diarrhea and malabsorption syndrome occur in hyperthyroidism and adrenal insufficiency (accompanied by anemia and electrolyte imbalance). Diabetes is characterized by the classical triad: polyuria combined with polydipsia. Hyperparathyroidism leads to urolithiasis, manifesting as renal colic.
- Nervous system: ranging from neuromuscular excitability and cramps (tetany in hypocalcemia) to profound alterations in consciousness, including comas (hyper- or hypoglycemic in diabetes mellitus).
Briefly: answers to topical questions
What specific ophthalmological symptoms (eye signs) are characteristic of thyrotoxicosis?
Thyrotoxicosis is characterized by the following eye symptoms:
- Exophthalmos—protrusion of the eyeballs, a marker of hyperthyroidism.
- Graefe's sign—lagging of the upper eyelid when looking down, exposing a strip of sclera.
- Stellwag's sign—rare and incomplete blinking.
- Moebius' sign—weakness or impairment of convergence of the eyeballs.
- Krause's sign—increased eye sparkle.
- Dalrymple's sign—wide opening of the palpebral fissures.
- Rosenbach's sign—fine, rapid tremor of lowered or lightly closed eyelids.
- Jellinek's sign—pigmentation of the eyelids.
What is the correct technique for palpating the thyroid gland?
Palpation of the thyroid gland (Glandula thyroidea) assesses its size, symmetry, consistency, surface (smooth or nodular), presence of nodules, and tenderness.
An important element is the evaluation of functional tests: mobility of the gland during swallowing (displacement of the isthmus) and the presence of pulsation. Palpation of a retrosternal goiter (upper pole) is performed through the jugular notch. Normally, the isthmus is felt as a soft, smooth, painless cord up to 3–5 mm wide that moves during swallowing, while the lobes are not palpable.
What types of comas can develop in patients with diabetes mellitus?
Patients with diabetes mellitus may develop acute complications in the form of the following types of coma:
- Diabetic (ketoacidotic) coma—develops against the background of pronounced insulin deficiency and severe ketoacidosis.
- Hyperosmolar coma (hyperosmolar hyperglycemic state).
- Hypoglycemic coma.
What symptoms make up the full classical triad of diabetes mellitus?
The full classical triad of diabetes mellitus (the so-called "major symptoms" or the "3 Ps") includes the following manifestations:
- Polydipsia—marked thirst.
- Polyuria—profuse urination.
- Weight loss.
Many endocrine syndromes are easily "read" from the face: moon face—hypercortisolism, enlargement of the jaw and brow ridges—acromegaly, pronounced exophthalmos—hyperthyroidism, swelling around the eyes (periorbital) —hypothyroidism.
Class and exam questions
Why are changes in the heart, GI tract, and other organs evaluated when endocrine pathology is suspected?
Hormones have systemic effects and influence all body tissues. Diagnosis is always based on comparing laboratory data (hormonal profile) with diverse clinical manifestations involving the skin, heart, gastrointestinal tract, and nervous system.
How to distinguish clinical manifestations of hyperthyroidism and hypothyroidism during a patient interview?
In hyperthyroidism, the patient is restless, overly emotional, and speaks hurriedly. In hypothyroidism, the opposite picture is observed: sluggishness, pronounced apathy, and delayed reactions.
Which disease is characterized by a combination of muscle weakness, bone pain, and frequent fractures?
Such a triad of symptoms requires the mandatory exclusion of Cushing's syndrome, while bone pain with fractures is also typical for hyperparathyroidism.
What is the significance of hormone levels compared to metabolic parameters?
Assessment of metabolic disorders is often more informative for determining disease severity. For example, in diabetes mellitus, blood glucose levels reflect the degree of metabolic disruption more accurately than insulin concentration itself.
What else to study on this topic
- Methodology and Technique of Thyroid Palpation
- Pathogenesis of «Thyrotoxic Heart» Development and Its ECG Criteria
- Differential Diagnosis of Arterial Hypertension of Endocrine Origin
- Mechanisms of Polyuria and Polydipsia in Diabetes Mellitus
- Electrolyte Disorders in Malabsorption Syndrome Associated with Endocrine Pathologies
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