Open AccessMeningeal Hamartoma of the Scalp A Variant of Primary Cutaneous Meningioma
Author(s) -
Hirakawa Eiichiro,
Kobayashi Shoji,
Terasaka Kaoru,
Ogino Tetsuro,
Terai Yoshinori,
Ohmori Masaki
Publication year - 1992
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1992.tb02885.x
Subject(s) - scalp , meninges , hamartoma , pathology , meningioma , medicine , skull , anatomy , vimentin , immunohistochemistry
A case of meningeal hamartoma of the scalp is reported. A 15‐year‐old girl was admitted complaining of scalp nodules in the midline occipital region. A midline skull defect was found under the nodular lesions. Histologically, the mass had a fibrocollagenous tract extending to the dura and showed an admixture of mature adipose tissue, small ves sels, strands of fibrocollagenous tissue, and scattered foci of meningocytes. lmmunohistochemically, the menin‐gocytes were positive for vimentin. Ultrastructurally, the meningocytes had scattered desmosomes, interdigitating processes, and intermediate filaments. The patient's brother also had the meningeal hamartoma of the scalp. Meningeal hamartoma as a variant of primary cutaneous meningioma is extremely rare, and this is the first report of such a case in Japan. Acta Pathol Jpn 42: 353–357, 1992.