Background-In several diseases there is a relation between deficiency
of neutrophil granulocytes and granulomatous lesions. Recently, in gly
cogen storage disease type Ib, this relation has been supported by the
beneficial effect of treatment of enteritis with granulocyte-macropha
ge colony stimulating factor. Aim-To investigate whether chronic granu
lomatous disease could be treated according to the same principle. Pat
ients and methods-Inflammatory lesions were monitored in two brothers
with chronic granulomatous disease demonstrated by very low superoxide
production in neutrophil granulocytes. The two patients were treated
with recombinant human granulocyte colony stimulating factor on three
occasions when the disease was active. Results-In one patient, remissi
on of an inflamed stenosis of the colon sigmoideum was shown by granul
ocyte scintigraphy after one month of treatment with granulocyte colon
y stimulating factor. In the other patient, remission of colon disease
and later of a non-malignant tumour in the right lung hilum was shown
by colonoscopy and computed tomography scans respectively. Conclusion
-Remission of inflammatory lesions in two brothers with chronic granul
omatous disease was induced by granulocyte colony stimulating factor o
n three occasions. The mechanism for this effect is not known. The res
ult is similar to the response found in patients with leucocyte defici
ency due to glycogen storage disease type Ib.