
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Prolactinoma classification
Introduction
Overview
Overview
Prolactinoma can be classified based upon either size or local invasion. Based on size, a prolactinoma can be classified as a microprolactinoma (<10 mm diameter) or macroprolactinoma (>10 mm diameter).
Classification
Classification
Prolactinoma may be classified based on either size or local invasion.
| Classification of prolactinoma | |||
|---|---|---|---|
| Classification basis | Type/Grade | Criteria | |
| Classification based on size[1] | Microprolactinoma | <10 mm diameter | |
| Macroprolactinoma | >10 mm diameter | ||
| Classificatioin based on local invasion[2][3][4] | Size and Invasion | 0 | Normal pituitary appearance |
| I | Enclosed within the sella turcica, microadenoma smaller than 10 mm | ||
| II | Enclosed within the sella turcica, macroadenoma 10 mm or larger | ||
| III | Invasive, locally, into the sella turcica | ||
| IV | Invasive, diffusely, into the sella turcica | ||
| Grading scheme for suprasellar extensions | A | 0 to 10 mm suprasellar extension occupying the suprasellarcistern | |
| B | 10 mm to 20 mm extension and elevation of the third ventricle | ||
| C | 20 mm to 30 mm extension occupying the anterior of the third ventricle | ||
| D | A larger than 30 mm extension, beyond the foramen of Monro, or Grade C with lateral extensions | ||
References
References
- ↑ Ezzat S, Asa SL, Couldwell WT, Barr CE, Dodge WE, Vance ML, McCutcheon IE (2004). “The prevalence of pituitary adenomas: a systematic review”. Cancer. 101 (3): 613–9. doi:10.1002/cncr.20412. PMID 15274075.
- ↑ “Pituitary Tumors Treatment (PDQ®)—Health Professional Version – National Cancer Institute”.
- ↑ Yeh PJ, Chen JW (1997). “Pituitary tumors: surgical and medical management”. Surg Oncol. 6 (2): 67–92. PMID 09436654.
- ↑ Hardy J: Transsphenoidal surgery of hypersecreting pituitary tumors. In: Kohler PO, Ross GT, eds.: Diagnosis and treatment of pituitary tumors: proceedings of a conference sponsored jointly by the National Institute of Child Health and Human Development and the National Cancer Institute, January 15-17, 1973, Bethesda, Md. Amsterdam, The Netherlands: Excerpta medica, 1973, pp 179-98
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Faizan Sheraz, M.D. [2], Anmol Pitliya, M.B.B.S. M.D.[3]
