MedGen

Buschke-Ollendorff syndrome (BOS) is an autosomal dominant connective tissue disorder manifest by multiple subcutaneous nevi or nodules. They may be either elastin-rich (elastoma) or collagen-rich (dermatofibrosis lenticularis disseminata) on histologic examination. The lesions are usually nontender and firm. Affected individuals also have osteopoikilosis (OPK), literally meaning 'spotted bones,' which are osteosclerotic foci that occur in the epiphyses and metaphyses of long bones, wrist, foot, ankle, pelvis, and scapula. Some individuals have both skin and bone manifestations, whereas others may lack skin or bone manifestations. Some individuals may also have melorheostosis (155950), which is characterized by 'flowing' hyperostosis of the cortex of tubular bones. Most reported cases of BOS and OPK are benign, and the bone lesions are found incidentally, although some patients may have joint pain (reviews by Hellemans et al., 2004 and Zhang et al., 2009). [from OMIM]

An exceedingly rare autosomal dominant disorder reported in only a few patients to date with characteristics of dacryocystitis due to lacrimal canal stenosis and osteopoikilosis (demonstrated radiologically as discrete spherical osteosclerotic lesions of 2-10 mm in diameter). [from SNOMEDCT_US]

Osteopoikilosis is a benign, asymptomatic sclerotic dysplasia of the bones. It affects both male and female and may be seen at any age. Radiographically sclerotic circular or ovoid lesions are usually symmetrically distributed in a periarticular location. Lesions can increase or decrease in size and number in serial radiographs or even disappear and do not have increased bone radiotracer uptake. [from HPO]