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Premature Pubarche As a First Presentation of Pituitary Macroprolactinoma Publisher



Tabatabaei F1 ; Sharif MR2 ; Esfahani HN3 ; Zahrani RY4 ; Taheri A5 ; Meamar R4
Authors
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Authors Affiliations
  1. 1. Clinical Research Development Research Centre, Najafabad Branch, Islamic Azad University, Najafabad, Iran
  2. 2. Infectious Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
  3. 3. Depatment of Ophthalmology, School of Medicine, Najafabad University, Shariati Hospital, Isfahan, Iran
  4. 4. Isfahan Clinical Toxicology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  5. 5. Health Information Technology Research Center, Clinical Information's Research Group, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Research in Medical Sciences Published:2020


Abstract

Prolactinoma is a rare tumor of childhood. Clinical presentations of prolactinoma include amenorrhea, delayed puberty, and galactorrhea. For the first time, in this case, elevated prolactin levels were associated with unexpected premature pubarche. We describe an 8-year, 7-month-old boy with acne and gradual appearance of pubic hair, corresponding to tanner stage 2. Hormonal tests showed severe hyperprolactinemia (prolactin = 246.8 μg/L and pooled prolactin = 175 μg/L and macroprolactin = 5 μg/L) and mildly elevated level of dehdroepiandrostenedion sulfate (DHEAS) and testosterone. Magnetic resonance imaging (MRI) findings confirmed the presence of a pituitary macroprolactinoma, measuring 14 mm × 12 mm × 8 mm on the right side of the pituitary gland. Cabergoline therapy was commenced (0.5 mg/week) and after 3 months, no evidence of pubarche progression was observed. Prolactin level and tumor size markedly reduced. At the 9-month follow-up visit, a normal MRI was reported. This case highlights that even when facing premature pubarche, careful examination is mandatory, and if no obvious etiology is found for premature pubarche, clinicians should consider prolactinoma. © 2020 Journal of Research in Medical Sciences.