Which symptom is associated with granulomatous disease related to hypercalcemia?

• A. Hyperphosphatemia
• B. Bone pain
• C. Flushing of the face
• D. Hypercalcemia

Answer: (D)

Granulomatous diseases, such as sarcoidosis and certain infections like tuberculosis, can lead to hypercalcemia through a process known as increased conversion of vitamin D to its active form, leading to elevated calcium levels. In these conditions, the activated macrophages within the granulomas produce an enzyme called 1-alpha-hydroxylase, which enhances calcium absorption from the intestines and resorption from the bones, ultimately resulting in high calcium levels in the blood.

The direct association of hypercalcemia with granulomatous disease is crucial because it leads to a constellation of symptoms that can include fatigue, weakness, and renal issues, but hypercalcemia itself is a key pathological finding in these disorders. In contrast, other options like hyperphosphatemia, bone pain, and flushing of the face do not have the same direct and commonly recognized association with granulomatous disease-induced hypercalcemia. Hyperphosphatemia may occur in conditions of renal impairment but is not a hallmark of granulomatous diseases. Bone pain can be a consequence of various conditions but is not specific to granulomatous diseases associated with hypercalcemia. Flushing of the face is typically seen in conditions such as carcinoid syndrome rather than granulomatous diseases