TY - JOUR
T1 - Agminate and plaque-type blue nevus combined with lentigo, associated with follicular cyst and eccrine changes
T2 - A variant of speckled lentiginous nevus
AU - Betti, R.
AU - Inselvini, E.
AU - Palvarini, M.
AU - Crosti, C.
PY - 1997
Y1 - 1997
N2 - Agminate and plaque-type blue nevi are rarely described. We report the occurrence of such a type of blue nevus associated with eccrine changes and a follicular cyst all arising on a macular brown background in a 38-year-old man. The patient presented numerous blue papules and a plaque, overlapping a light tan patch present since birth, on his left thigh. In addition, within the plaque, 3 papules, discharging at intervals a serous fluid, were present. Since the lesion hardened and enlarged, it was surgically excised. Histologic findings revealed a lentigo pattern of the epidermis, corresponding to the light tan macular background and a plaque-type blue nevus, and areas of eccrine ductal proliferations with a ruptured follicular cyst. The association of agminate and plaque-type blue nevus, arising on a light brown patch of lentigo, might represent a variant of speckled lentiginous nevus. Eccrine proliferations may be reactive in nature or represent a more complex hamartomatous lesion. The possibility of malignant transformation and the recent enlargement of the lesion caused by the ruptured follicular cyst convinced us to carry out a wide surgical excision.
AB - Agminate and plaque-type blue nevi are rarely described. We report the occurrence of such a type of blue nevus associated with eccrine changes and a follicular cyst all arising on a macular brown background in a 38-year-old man. The patient presented numerous blue papules and a plaque, overlapping a light tan patch present since birth, on his left thigh. In addition, within the plaque, 3 papules, discharging at intervals a serous fluid, were present. Since the lesion hardened and enlarged, it was surgically excised. Histologic findings revealed a lentigo pattern of the epidermis, corresponding to the light tan macular background and a plaque-type blue nevus, and areas of eccrine ductal proliferations with a ruptured follicular cyst. The association of agminate and plaque-type blue nevus, arising on a light brown patch of lentigo, might represent a variant of speckled lentiginous nevus. Eccrine proliferations may be reactive in nature or represent a more complex hamartomatous lesion. The possibility of malignant transformation and the recent enlargement of the lesion caused by the ruptured follicular cyst convinced us to carry out a wide surgical excision.
KW - Agminated blue nevus
KW - Eccrine changes
KW - Follicular cyst
KW - Plaque-type blue nevus
KW - Speckled lentiginous nevus
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M3 - Article
C2 - 9529564
AN - SCOPUS:0031458103
VL - 195
SP - 387
EP - 390
JO - Dermatology
JF - Dermatology
SN - 1018-8665
IS - 4
ER -