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Use of denosumab in parathyroid carcinoma with refractory hypercalcemia

Tong CV, Hussein Z, Noor NM, Mohamad M, Ng WF

QJM, 2015 Jan;108(1):49-50.
PMID: 25099611 DOI: 10.1093/qjmed/hcu166
Matched MeSH terms: Parathyroid Neoplasms/complications*
Large retrosternal parathyroid carcinoma with primary hyperparathyroidism

Tan GC, Shiran MS, Swaminathan M, Phang KS, Rohaizak M

Asian J Surg, 2007 Oct;30(4):286-9.
PMID: 17962134

Parathyroid carcinoma is an uncommon cause of parathyroid hormone (PTH)-dependent hypercalcaemia, accounting for less than 1% of all cases of hyperparathyroidism. Parathyroid carcinoma is an indolent tumour with rather low malignant potential. Consideration of parathyroid carcinoma in the differential diagnosis of hypercalcaemic disorders is important because the morbidity and mortality are substantial and the best prognosis is associated with early recognition and surgical resection. Clinical indicators favouring parathyroid carcinoma over benign disease include markedly raised serum calcium levels, PTH and alkaline phosphatase. A palpable neck mass with both kidney and skeletal manifestations also give a high index of suspicion of parathyroid carcinoma. Histopathology alone is not sufficient to diagnose parathyroid cancer; it has to be correlated with the clinical findings. The initial and most effective treatment for parathyroid carcinoma is complete resection of the primary lesion, and repeated operations for recurrence are useful. The prognosis of parathyroid carcinomas is quite variable; 5-year survival rates vary from 40% to 86%, while the 10-year survival rate is approximately 49%. We report a case of parathyroid carcinoma occurring in a 55-year-old woman who presented with bone pain and hypercalcaemia.

Matched MeSH terms: Parathyroid Neoplasms/complications*
A case report of primary hyperparathyroidism with severe bony involvement and nephrolithiasis

Chan SP, Hew FL, Jayaram G, Kumar G, Chang KW, Tay A

Ann Acad Med Singap, 2001 Jan;30(1):66-70.
PMID: 11242630

INTRODUCTION: Although the majority of patients with primary hyperparathyroidism have a relatively asymptomatic benign disorder, there are patients who have a more aggressive disorder.
CLINICAL PICTURE: We report a case of primary hyperparathyroidism presenting during pregnancy complicated by antepartum haemorrhage and severe prematurity. The diagnosis was made postpartum, when her problems rapidly progressed to result in severe neuromuscular weakness, bilateral pathological hip fractures as well as nephrolithiasis.
TREATMENT: Surgical parathyroidectomy was performed. The underlying lesion was a large solitary parathyroid adenoma with cystic elements.
CONCLUSION: Primary hyperparathyroidism is not an innocuous disease and can result in severe morbidity if left untreated.

Matched MeSH terms: Parathyroid Neoplasms/complications
Primary hyperparathyroidism presenting with pathological fracture

Deshmukh RG, Alsagoff SA, Krishnan S, Dhillon KS, Khir AS

J R Coll Surg Edinb, 1998 Dec;43(6):424-7.
PMID: 9990797

Primary hyperparathyroidism (PHPT) is an intriguing condition. Routine automated biochemical screening has made the diagnosis commonplace in developed countries and the disease is diagnosed early in its course when it is often asymptomatic. In developing countries or in recent immigrants from these countries, PHPT is often seen in an advanced stage with bone involvement. Associated dietary deficiencies may alter the biochemical profile and cause a diagnostic dilemma. It is important to include it in the differential diagnosis of pathological fractures. We report three cases of PHPT presenting with pathological fractures and discuss their diagnosis and management.

Matched MeSH terms: Parathyroid Neoplasms/complications