Development of six tumors in a Sebaceus nevus of Jadassohn : report of a case

Nevus sebaceus of Jadassohn is a congenital cutaneous hamartoma comprised of multiple skin structures. It has the potential to develop into variety of neoplasms of various epidermal adnexal origins. While multiple tumors may occasionally arise, it is unusual for more than four tumors to arise simultaneously within a single sebaceus nevus. Here in, we report a case of a 70-year-old woman with six neoplastic proliferations including a syringocystadenoma papilliferum, pigmented trichoblastoma, tubular apocrine adenoma, sebaceoma, tumors of follicular infundibulum and superficial epithelioma with sebaceus differentiation arising in a long standing nevus sebaceus on the scalp. Our case is extraordinary because a single nevus sebaceus contained six neoplastic proliferations with differentiation toward the folliculosebaceous-apocrine unit

Primary gluteal subcutaneous hydatid cyst

Hydatid disease is a parasitic zoonosis caused by Echinococcus granulosus larvae. While it can affect almost any part of the human body, liver and lung are the two organs where the disease is most frequently detected. Subcutaneous hydatid cyst, which mostly develops secondary to iatrogenic spillage of cyst contents into incision area during a visceral hydatid cyst surgery, accounts for only 1.5 % of all cases of hydatid cyst. With only a limited number of reported cases, primary involvement of subcutaneous tissue by hydatid cyst is a much more rare occurrence as compared with the secondary form. Subcutaneous hydatid cysts tend to involve trunk and limb roots, and mostly present as a slowly-growing, painless, mobile mass with a normal overlying skin. To our knowledge, only a few cases of primary subcutaneous hydatid cyst in the gluteal region have been reported to date. Here, we present a 72-year-old farmer who presented with a painless lump in the gluteal region and diagnosed as having primary subcutaneous hydatid cyst. Keywords: Hydatid cyst, Gluteal region, Soft tissue, Subcutaneous, MR

Open Access

histomorphological and immunohistochemical feature