Fibrosis de médula ósea asociada con adenocarcinoma metastásico de pulmón.

BACKGROUND: Bone marrow fibrosis is characterized by increased deposition of reticulin fibers and, in some cases, collagen fibers. There is a series of hematological and non-hematological disorders that are associated with an increase in bone marrow fibrosis. Non-small cell lung cancer represents 85% of all cases of lung cancer. Bone metastasis is one of the most common complications among lung cancer survivors. Some patients with bone metastases may suffer pathological fracture, compression of the spinal cord or malignant hypercalcemia. CLINICAL CASE: A 57-year-old male patient with a history of diabetes mellitus and smoking, who presented with a clinical picture of low back pain of 4 months of evolution; at admission he had hypercalcemia, acute kidney injury, anemia and osteolytic lesions. A diagnostic approach of hypercalcemia of neoplastic origin was made. CONCLUSIONS: The approach of a patient with high suspicion of multiple myeloma was carried out, without being able to establish that diagnosis, for which reason an iliac crest biopsy and tomographic study were requested, documenting bone marrow fibrosis associated with metastatic pulmonary adenocarcinoma. [ABSTRACT FROM AUTHOR]