Syndrome of inappropriate antidiuretic hormone classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vindhya BellamKonda, M.B.B.S [2]

Overview

SIADH may be classified into several sub-types based on the pattern of AVP( arginine vasopressin) secretions across a range of plasma osmolalities: Type A, type B, type C, type D.

Classification

SIADH may be classified in to several sub-types based on the pattern of AVP secretion across a range of plasma osmolalities:

Differentiating Gynecomastia from other Diseases

Gynecomastia can be differentiated from other pathologies by detailed history taking and physical examination.^[1]^[2]^[3]


Differential Diagnosis	Differentiating Features

Gynecomastia	Round discrete mass felt under areola and usually bilateral.
Pseudogynecomastia	Increased adipose rather than glandular tissue on examination.
Lipoma	Asymmetric breast enlargement.
Breast cancer	Nipple discharge, Axillary lymphadenopathy, usually nonpainful mass.
Sebaceous cyst	Asymmetric enlargement and swelling feels closer tothe skinn.
Mastitis	Systemic s/s of infection.

References

↑ Dickson G (2012). "Gynecomastia". Am Fam Physician. 85 (7): 716–22. PMID 22534349.
↑ Croes K, Baeyens W, Bruckers L, Den Hond E, Koppen G, Nelen V; et al. (2009). "Hormone levels and sexual development in Flemish adolescents residing in areas differing in pollution pressure". Int J Hyg Environ Health. 212 (6): 612–25. doi:10.1016/j.ijheh.2009.05.002. PMID 19546029.
↑ Laituri CA, Garey CL, Ostlie DJ, St Peter SD, Gittes GK, Snyder CL (2010). "Treatment of adolescent gynecomastia". J Pediatr Surg. 45 (3): 650–4. doi:10.1016/j.jpedsurg.2009.11.016. PMID 20223338.

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[pmid22534349-1] Dickson G (2012). "Gynecomastia". Am Fam Physician. 85 (7): 716–22. PMID 22534349.

[pmid19546029-2] Croes K, Baeyens W, Bruckers L, Den Hond E, Koppen G, Nelen V; et al. (2009). "Hormone levels and sexual development in Flemish adolescents residing in areas differing in pollution pressure". Int J Hyg Environ Health. 212 (6): 612–25. doi:10.1016/j.ijheh.2009.05.002. PMID 19546029.

[pmid20223338-3] Laituri CA, Garey CL, Ostlie DJ, St Peter SD, Gittes GK, Snyder CL (2010). "Treatment of adolescent gynecomastia". J Pediatr Surg. 45 (3): 650–4. doi:10.1016/j.jpedsurg.2009.11.016. PMID 20223338.

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Syndrome of inappropriate antidiuretic hormone classification

Overview

Classification

Differentiating Gynecomastia from other Diseases

References

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