Genetic linkage analysis of multicase families with fibromyalgia syndrome

OBJECTIVE

Based on the reports of familial aggregation of fibromyalgia (FM) syndrome, we investigated its possible genetic linkage to HLA by studying multicase families.

METHODS

Forty Caucasian multicase families with a diagnosis of FM (American College of Rheumatology criteria) in 2 or more first degree relatives were investigated. Eighty-five affected and 21 unaffected members of 41 sibships were studied. Depression symptomology was assessed by Zung Self-rating Depression Scale (SDS). HLA typing was performed for A, B, and DRB 1 alleles, and haplotypes were determined with no knowledge of the subject's diagnosis. We investigated genetic linkage to the HLA region by evaluating sibships in multicase families.

RESULTS

Sibship analysis showed significant genetic linkage of FM to the HLA region (p = 0.028). Subgroup analysis was also performed for 17 families where the proband was also noted to have depression (with an SDS index value > or =60). We found that the presence of depression did not influence the observed results (p = 0.22).

CONCLUSION

. Our study of 40 multicase families confirms existence of a possible gene for FM that is linked with the HLA region. Our results should be regarded as preliminary and their independent confirmation by other studies is warranted.

Adenocarcinoma of the cervix presenting as ovarian cancer: diagnostic considerations

Patients with adenocarcinoma of the cervix usually present with either abnormal vaginal bleeding or abnormal papanicolaou smears. Rarely, they may present with an abdominopelvic mass. We report two patients with occult cervical adenocarcinoma who presented with an abdominopelvic mass and vaginal bleeding which simulated a primary ovarian cancer.