Shrestha Anup, Thapa Anup, Bohara Keshav, Simkhada Suman
Department of Medicine, Kist Medical College, Kathmandu, Nepal.
Ann Med Surg (Lond). 2023 Nov 17;86(1):548-551. doi: 10.1097/MS9.0000000000001521. eCollection 2024 Jan.
Androgen Insensitivity Syndrome (AIS) is a rare X-linked recessive disorder of sexual development. It results from mutations in the Androgen Receptor (AR) gene located on chromosome Xq11-12. Affected individuals have a male genotype but a female phenotype.
A 20-year-old female presented to the emergency room with a history of pain in the bilateral inguinal region. In ultrasonography (USG), bilateral inguinal hernia was suspected. While performing an emergency operation for hernia repair, hernia was revealed as bilateral abdominal testis. Then, after a gynecology consultation, a bilateral orchidectomy was done. Postoperative karyotyping showed a male genotype. Then the patient was discharged on hormone replacement therapy to maintain normal bone mineral density and secondary sexual characteristics.
AIS presents with primary amenorrhea in pubertal females. The growth spurt and secondary sexual characteristics are normal except for absent axillary and pubic hair. There is a short-blind vagina, but the uterus is absent, and the abdominal testis presents as an inguinal hernia. Serum gonadotropin level, karyotyping, and imaging studies are done to reach a diagnosis. Management includes gonadectomy, genitoplasty, and hormone replacement therapy.
The objective of this report was to make clinicians aware that AIS can present as a bilateral inguinal hernia. In acute presentations, it can be misdiagnosed as a strangulated femoral hernia only later to be identified as an undescended abdominal testis during surgery. An absence of proper clinical judgment and reliance on USG for imaging can often lead to misdiagnosis in acute settings.
雄激素不敏感综合征(AIS)是一种罕见的X连锁隐性性发育障碍。它由位于Xq11 - 12染色体上的雄激素受体(AR)基因突变引起。受影响的个体具有男性基因型,但表现为女性表型。
一名20岁女性因双侧腹股沟区疼痛病史就诊于急诊室。超声检查(USG)怀疑双侧腹股沟疝。在为其进行急诊疝修补手术时,发现疝为双侧腹腔内睾丸。随后,经妇科会诊后,进行了双侧睾丸切除术。术后核型分析显示为男性基因型。然后患者出院接受激素替代治疗,以维持正常的骨密度和第二性征。
AIS在青春期女性中表现为原发性闭经。除腋毛和阴毛缺失外,生长突增和第二性征正常。阴道短且盲端,但无子宫,腹腔内睾丸表现为腹股沟疝。通过检测血清促性腺激素水平、核型分析和影像学检查来做出诊断。治疗包括性腺切除术、生殖器成形术和激素替代治疗。
本报告的目的是让临床医生意识到AIS可表现为双侧腹股沟疝。在急性病例中,它可能最初被误诊为绞窄性股疝,直到手术时才被发现是未降入阴囊的腹腔内睾丸。缺乏正确的临床判断以及依赖USG进行影像学检查常常会在急性情况下导致误诊。