Severe Symptomatic Hypocalcemia, complicating cardiac arrhythmia following Cinacalcet (Sensipar) administration: A Case Report.

Clinicians should closely monitor patients on calcimimetics for hypocalcemic symptoms and arrhythmia, even though asymptomatic hypocalcemia typically resolves without intervention.

Metastatic renal cell carcinoma in the thyroid gland.

Thyroid incidentalomas on FDG PET/CT are common with one-third of focal uptakes caused by malignancies. Toxic nodules should be excluded. Ultrasound risk-adapted systems can classify thyroid nodules and identify those who need biopsy.

PYKNODYSOSTOSIS (OSTEOPETROSIS ACRO-OSTEOLYTICA).

Objective: To present a case of pyknodysostosis (PKND), a rare genetic cause of skeletal dysplasia that often goes undiagnosed even in patients with classic features.

Methods: We report a case of PKND that went undiagnosed over many years despite classic features. We performed physical examination, imaging studies, and genetic testing on the patient.