Steatocystoma multiplex - 多発性脂腺嚢腫
relevance score : -100.0%
References脂肪細胞腫症、または表皮多嚢胞性疾患としても知られる Steatocystoma multiplex (SM) は、さまざまなサイズの複数の皮内脂腺嚢胞を特徴とするまれな良性皮膚疾患です。臨床的には、SM は多数の滑らかで硬く、可動性のある嚢胞性隆起やしこりとして現れますが、ほとんどの場合症状はありません。これらの病変は通常、直径が数ミリメートルから数センチメートルまでの丸く均一なサイズです。表面は黄色がかっていることが多く、深部のものは肌色と一致します。嚢胞内の液体は無臭で油状であり、透明度や色合いは個々に異なります。典型的な嚢胞とは異なり、嚢胞を覆う皮膚の中央に目に見える開口部はありません。 SM は体のどこにでも発症し得ますが、特に油腺や毛包が豊富な胴体、首、頭皮、脇の下、腕、脚、鼠径部などに多く見られます。
Steatocystoma multiplex (SM, also known as steatocystomatosis, sebocystomatosis, or epidermal polycystic disease) is a rare benign intradermal true sebaceous cyst of various sizes. Clinically, SM presents as asymptomatic, numerous, round, smooth, firm, mobile, cystic papules, and nodules. The lesions are uniform, with a size of a few millimeters to centimeters along the long axis. The superficial lesions are yellowish, and deeper lesions tend to be skin-colored. The fluid in SM is odorless, oily, clear or opaque, milky or yellow. The overlying epidermal skin is often normal, with no central punctum. SM can occur anywhere in the body but is more frequently seen in areas rich in pilosebaceous units such as the trunk (especially the presternal region), neck, scalp, axilla, proximal extremities, and inguinal region.
Steatocystoma multiplex (SM, also known as steatocystomatosis, sebocystomatosis, or epidermal polycystic disease) is a rare benign intradermal true sebaceous cyst of various sizes. Clinically, SM presents as asymptomatic, numerous, round, smooth, firm, mobile, cystic papules, and nodules. The lesions are uniform, with a size of a few millimeters to centimeters along the long axis. The superficial lesions are yellowish, and deeper lesions tend to be skin-colored. The fluid in SM is odorless, oily, clear or opaque, milky or yellow. The overlying epidermal skin is often normal, with no central punctum. SM can occur anywhere in the body but is more frequently seen in areas rich in pilosebaceous units such as the trunk (especially the presternal region), neck, scalp, axilla, proximal extremities, and inguinal region.
25歳の男性が、腕・胸・腹部に皮膚疾患を訴えて来院しました。彼は20年間、痛みのないしこりに悩んでおり、最初は胸部に現れ、過去7年間で腕まで広がってきました。
A 25-year-old man came in with a skin condition on his arms, chest, and abdomen. He had been with painless lumps for 20 years, starting on his chest and spreading to his arms over the past 7 years.
A 25-year-old man came in with a skin condition on his arms, chest, and abdomen. He had been with painless lumps for 20 years, starting on his chest and spreading to his arms over the past 7 years.
思春期に発症することが多く、毛包脂腺単位がホルモン刺激を受けることが原因と考えられています。最も頻繁に見られる部位は胸部ですが、腹部、上腕、脇の下、顔にも出現することがあります。稀に全身に嚢胞が広がるケースもあります。