Van Wyk-Grumbach syndrome and oligosyndactyly in a 6-year-old girl: a case report

Van Wyk-Grumbach Syndrome and Gonadectomy

Van Wyk-Grumbach syndrome (VWGS) refers to the development of peripheral precocious puberty, long-standing hypothyroidism, and gonadal masses; when not diagnosed, an unnecessary gonadectomy may be performed. Herein, we present a case of a 10-year-old girl with Down's syndrome, short stature, and vitiligo who presented to our hospital with vaginal bleeding and a palpable pelvic mass. Upon ultrasound and topographical examination, bilateral ovarian masses with negative tumor markers were detected. After bilateral gonadectomy, endocrine studies revealed profound hypothyroidism and peripheral puberty that led to the VWGS syndrome diagnosis (TSH 367.3 mUI/mL, isolated menstruation, indetectable LH, and elevated estradiol). Levothyroxine treatment improved obesity and short stature, and sexual hormone replacement began at 13 years of age. The literature on Van Wyk-Grumbach syndrome shows that it presents most often in women, and classic hypothyroidism symptoms always precede the diagnosis. Approximately 11% of patients have Down's syndrome, sometimes tumor markers are elevated, and some develop severe symptoms (myopathy, short stature, mental delay, ascites, pericardial effusion, Cullen's sign, pituitary hyperplasia, and severe anemia) that respond to levothyroxine treatment. Conclusions: Children with peripheral precocious puberty and gonadal masses must be studied for hypothyroidism before any radical decision is made.

Van Wyk-Grumbach syndrome: The importance of thyroid function tests in a child presenting with multicystic ovaries

INTRODUCTION

Van Wyk-Grumbach syndrome (VWGS) is a rare presentation of long-standing hypothyroidism, characterized by delayed bone age, enlarged bilateral multicystic ovaries, and isosexual precocious puberty.

CASE PRESENTATION

We report here the clinical details of the case of Van Wyk Grumbach Syndrome in an 11-year-old girl who was first presented to the pediatric surgeon for hemoperitoneum. The patient underwent an emergency exploratory laparotomy, which showed enlarged ovaries with multiple cysts that were bleeding. She also had severe hypothyroidism, hyperprolactinemia, hyperestrogenism, pituitary adenoma, and delayed bone age. Significant improvement in symptoms was noted after thyroid hormone replacement therapy.

IMPORTANCE AND CONCLUSION

This case highlights that it is crucial to consider thyroid assessment in a patient with multicystic ovaries to avoid misdiagnosis, unnecessary investigations for malignancy and/or surgical intervention, and possible complications.

Atypical presentations of primary acquired hypothyroidism - a case series

Primary acquired hypothyroidism in children manifests with a myriad of clinical presentations. Clinical features can be insidious in nature, often under the guise of non-specific presentations to other subspecialties prior to referral to the endocrinologist. Growth failure is a hallmark feature in these children alongside their presenting clinical symptomology which needs to be identified through detailed history, physical examination and analysis of the growth charts. In this case series, we discuss 5 atypical presentations of acquired primary hypothyroidism with multisystemic involvement, including musculoskeletal, hepatobiliary, gynaecological and haematological manifestations. This is of importance as untreated hypothyroidism leads to fatigue, decreased physical activity, suboptimal height gain, disordered puberty and poor neurocognitive development in children with long term detrimental outcomes.