Continuous trauma plays a major role in the formation of
lesions. A similar entity, known as surfer's nodules have been reported on the
anterior tibial prominence [10], dorsa of the feet, or knuckles of
athletes [11]. Sports-related connective tissue nevi of the collagen
type (collagenomas) have also been referred to as athlete's nodules. Surfers,
boxers, marble-players, and football players are some of the athletes in whom
these lesions have been observed. The nodules can be found on the dorsal aspect
of the feet, knees, or knuckles and can be differentiated from other conditions
by clinical history or microscopic features. Recurrent trauma and friction are
the likely causative factors. Enhanced synthesis or accumulation of collagen
may have a contributory role. These asymptomatic nodules show dermal fibrosis
as well as epidermal hyperplasia, similar to our findings.
Nakamura A et al. reported ovoid, largely dermal nodules
occurring in the sacrococcygeal area of four Japanese students and attributed
these to continuous pressure from the bicycle saddle on an abnormally
posteriorly projecting sacrum [12]. Kawaura K et al. also reported a
similar lesion on the sacrococcygeal area in an additional bicycle rider [13].
The repetitive movement of wrist and fingers required for
carpet weaving and the use of non-ergonomic tools (knife, combs, scissors and
others) can lead to injury. Certainly continuous trauma to hands and fingers
during carpet-making have a major role in producing the papules and nodules we
would like to call, "carpet nodules."
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PubMed
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