分享1例以腹痛为首发表现的嗜铬细胞瘤（PCC）患者诊治经验，减少临床一线诊断的漏诊和误诊。

采用化学发光技术检测性激素六项、高血压八项，质谱法检测儿茶酚胺激素，心脏彩超、颈部血管彩超检查、垂体磁共振（MR）检查、腹部增强CT检查，病理、免疫组化技术检测组织标本。

性激素六项：促黄体生成素11.87 IU/L、其余项目正常；高血压八项：结果均正常；儿茶酚胺激素检查：3-甲氧基酪胺为0.42 nmol/L，甲氧基肾上腺素为3.55 nmol/L，甲氧基去甲肾上腺素为>20.56 nmol/L；心脏彩超：三尖瓣存在轻度返流；颈部血管彩超：左侧颈内动脉及左侧颈外动脉血流速度增快，右侧颈部椎动脉血流阻力指数增高，颅内基底动脉血流速度增快；垂体MR检查提示垂体稍膨隆，未除外垂体微腺瘤；腹部增强CT提示右侧肾上腺细胞瘤；组织病理结果为PCC；免疫组化：琥珀酸脱氢酶亚基B（SDHB）弥漫强阳性。

经过腹腔镜切除肾上腺PCC治疗后，患者儿茶酚胺激素结果恢复正常范围，血压恢复正常，无腹痛、头晕头痛、心悸、多汗等症状。

To share the diagnosis and treatment experience of a patient with pheochromocytoma (PCC) who presented with abdominal pain as the first symptom, aiming to reduce missed diagnosis and misdiagnosis in clinical frontline diagnosis.

Six sex hormones and eight hypertension were detected using chemiluminescence technology, the catecholamine hormone were detected using the mass spectrometry. Echocardiography, carotid ultrasound, pituitary magnetic resonance (MR) imaging, and abdominal contrast-enhanced computed tomography (CT) were performed. Additionally, pathological and immunohistochemical techniques were utilized to examine tissue specimens.

Six sex hormones: Promoting lutein was 11.87 IU/L, with other items being normal; eight high blood pressure items are normal; the catecholamine hormone test: 3-methoxy-based was 0.42 nmol/L, and the methamphetamine adrenaline was 3.55 nmol/L, methamphetamine with methamphetamine adrenaline was >20.56 nmol/L; cardiac ultrasound: Mild tricuspid regurgitation was present; cervical vascular color ultrasound: increased blood flow velocity in the left internal carotid artery and left external carotid artery, increased blood flow resistance index in the right vertebral artery, and increased blood flow velocity in the intracranial basilar artery; the pituitary MR examination suggested slight pituitary enlargement, without excluding the possibility of a pituitary microadenoma; abdominal contrast-enhanced CT suggested a right adrenal tumor; histopathological examination confirmed the diagnosis of PCC; immunohistochemistry: Succinate dehydrogenase complex iron sulfur subunit B(SDHB) showed diffuse strong positivity.

After laparoscopic resection of adrenal pheochromocytoma, the patient's catecholamine results returned to normal range, blood pressure returned to normal, and there were no symptoms such as abdominal pain, dizziness, headache, palpitations, and excessive sweating.