Related Experiment Video
Updated: Jun 16, 2026
Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling
Published on: October 14, 2021
[Hypercalcemia-hyperleukocytosis paraneoplastic syndrome complicating cutaneous squamous cell carcinoma. Report of
B Ben Said1, S Maitre, J-L Perrot
1Service de dermatologie, hôpital Nord, CHU St-Etienne, avenue Albert-Raimond, St-Priest-en-Jarez, France. benoit.ben-said@chu-lyon.fr
Introduction:
We report two cases of hypercalcemia-hyperleucocytosis paraneoplastic syndrome complicating cutaneous squamous cell carcinoma.
Case Reports:
The first patient, a 50-year-old man, suffering for hidradenitis suppurativa for the past 20 years, was admitted for squamous cell carcinoma. Laboratory findings showed marked hypercalcemia and hyperleucocytosis. PTHrP serum level was increased. Bone scintigraphy was normal. There was evidence of pulmonary metastasis. Despite treatment the patient died of agranulocytosis. The second patient was a 60-year-old man who presented with several months enlarging left axillary tumour. He has been treated by surgery for a squamous cell carcinoma of the left hand, 6 months ago. Serum calcium and white cell bloods count were elevated. The diagnosis of metastatic lymph node of cutaneous squamous cell carcinoma was confirmed. There was evidence of pulmonary metastasis. Despite chemotherapy the patient died rapidly.
Conclusion:
Hypercalcemia-hyperleucocytosis paraneoplastic syndrome is rarely described during the course of cutaneous squamous cell carcinoma. This syndrome seems to be related to hormones or cytokines secretion by the neoplasic cells including PTHrP and G-CSF. Some authors ascribe it a poor prognostic significance.
Related Concept Videos
01:30Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
01:27Disorders of Leukocytes
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...