Prenatal sonographic diagnosis of an extensive fetal axillary hemangiolymphangioma

Hemangiolymphangioma (HL) is an extremely rare malformation of both the lymphatic and blood vessels. We present a case of fetal axillary HL that was diagnosed sonographically at 36 weeks' gestation. Sonographic examination revealed a large, multilocular, cystic mass consistent with lymphangioma. At birth, a giant hemangioma was noticed involving the right hemitruncus. Based on clinical and sonographic findings, a diagnosis of HL was made. Surgical treatment was considered but was refused by the parents. The neonate died at 14 days of age, possibly due to an intralesional hemorrhage.     

腮腺腺淋巴瘤的CT诊断

目的：探讨腮腺腺淋巴瘤的临床及CT表现，以提高其诊断率。方法：回顾性分析经手术及穿刺活检病理证实的12例腮腺腺淋巴瘤的CT表现。结果：12例腮腺腺淋巴瘤中，单侧发病11例，双侧发病1例，共13侧发病；男10例（83.3％），女2例（16.7%）；单发9例（75%，9/12），多发3例（25％，3/12），共16个病灶，9个（56.3％，9/16）病灶位于腮腺后下方。CT表现病灶呈圆形、椭圆形及分叶状软组织肿块，边缘清晰，密度均匀10个，坏死囊变致密度不均匀6个；增强扫描除囊变区外，病灶呈早期均匀强化，以中度强化为主，囊变区不强化。结论：根据腮腺腺淋巴瘤的发病性别、年龄、部位及影像学表现，有助于诊断和鉴别诊断。     

Sonographic appearance of congenital arteriovenous fistula of the hand

Congenital arteriovenous fistula of the hand is uncommon. We report a case of unusual congenital arteriovenous fistula forming multiple fistulous communications between the arteries and veins in the right hand. Clinical findings were confirmed by color Doppler sonography and digital subtraction angiography.     

Sonographic appearance of a retained surgical sponge after thyroidectomy: Report of three cases

Although a number of cases of retained surgical sponge (RSS) after thoracic and abdominal surgery have been reported in the literature, the occurrence of RSS after thyroidectomy is very rare. We report the imaging findings of three cases of RSS after thyroidectomy. Sonography of the three patients revealed a hyperechoic mass with marked acoustic shadow. Computed tomography showed a well‐defined, circumscribed heterogeneous mass that had gas bubbles inside in two patients, whereas the mass in the third patient was hyperdense and homogenous with smooth margins. All three RSSs were surgically removed. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 41 :46–49, 2013     

Sonographic appearance of lipoma of the inferior vena cava.

Lipomas of the major central veins are rare, and their sonographic features have rarely been reported. We report a case in which a lipoma of the inferior vena cava (IVC) was incidentally identified during liver sonography in a 68-year-old man. Sonography of the upper abdomen revealed coarsening of the liver echotexture, with a relatively small liver and atrophy of the right hepatic lobe. A 2-cm hypoechoic hepatic nodule was visualized in segment IV. Sonography also showed a 2.2- x 1.8-cm, highly echogenic, homogeneous nodule in the hepatic segment of the IVC at its junction with the right atrium. The lumen of the IVC was partially occluded. The CT and MRI appearances of the IVC lesion were consistent with a lipoma, which was not treated because there was no clinical evidence of obstruction. Histopathologic analysis following a sonographically guided biopsy of the liver nodule revealed hepatocellular carcinoma, which was treated by percutaneous ethanol injection.     

Sonographic appearance of a giant appendicular mucocele

Mucocele of the appendix is a rare but well-known entity. Accurate preoperative diagnosis of this surgically curable entity is very important to prevent intraoperative rupture. With multimodality approach using ultrasound and CT, it has been possible to preoperatively diagnose mucocele of the appendix. We describe the ultrasound and CT findings of a giant appendicular mucocele that led us to the correct preoperative diagnosis.     

Sonographic appearance of an appendiceal diverticulum.

The increasing use of sonography for evaluating acute abdomen has brought greater recognition of appendicular abnormalities. We present an incidental finding of an appendiceal diverticulum during a sonographic examination of a 4-year-old child with acute appendicitis. Abdominal sonography showed an enlarged, swollen appendix with a diameter of 1.1 cm and a small, fingerlike lateral projection approximately 2.0 cm from its tip. The specimen, resected during an appendectomy, was 5.5 cm long and 1.0 cm in diameter and had a 0.3-cm outpouching. Microscopic examination revealed a pseudodiverticulum composed of mucosa and muscularis mucosa.     

Prenatal sonographic appearance of congenital fibrosarcoma

Congenital fibrosarcoma is a rare soft tissue sarcoma. A 22-year-old woman in the 22nd week of her first pregnancy underwent sonographic examination, which revealed a soft tissue swelling of the fetus's left thigh. The pregnancy was terminated, and congenital fibrosarcoma was diagnosed by pathologic examination. To our knowledge, this is the first published report of the intrauterine sonographic observation of this tumor in a fetal extremity. © 1998 John Wiley & Sons, Inc. J Clin Ultrasound 26:276–279, 1998.     

腮腺米库利兹病CT表现

目的 观察腮腺米库利兹病(MD)的CT表现.方法 回顾性分析14例经病理证实的腮腺MD患者术前CT特征.结果 14例中,6例为单侧腮腺单发结节,3例为单侧腮腺多发结节,4例为双侧多发结节,1例为双侧弥漫性病灶,位于腮腺浅叶或深叶;12例病灶边界模糊,其中1例与周围组织粘连、1例双侧病灶伴腮腺肿胀.CT平扫病灶呈等或稍高...     

多层螺旋CT对腮腺常见良性肿瘤的诊断价值

目的探讨多层螺旋CT对腮腺常见良性肿瘤的诊断和鉴别诊断价值。方法回顾性分析30例经病理证实的腮腺良性肿瘤患者的CT资料,所有病例均行CT平扫和增强,对多形性腺瘤、腺淋巴瘤及基底细胞腺瘤的CT表现进行对照,分析评价其影像学表现特征。结果30例患者中,多形性腺瘤16例,腺淋巴瘤10例,基底细胞腺瘤4例。多形性腺瘤表现为特征性的渐进性强化;腺淋巴瘤表现为典型的“快进快出”;基底细胞腺瘤动脉期和静脉期均有较显著强化。3者增强方式不同,其强化差异有统计学意义（P<0.05）。结论腮腺良性肿瘤的多层螺旋CT表现有一定特征性,多层螺旋CT在腮腺良性肿瘤的诊断和鉴别诊断中有重要的作用。     

腮腺混合瘤的CT诊断价值

目的:探讨CT对腮腺混合瘤的诊断价值。方法:对23例经手术病理证实的腮腺混合瘤CT表现进行回顾性分析。结果:23例均表现为边缘清楚的肿块,圆形、卵圆形16例,分叶7例,密度高于腮腺,较均匀14例,不均匀9例。结论:边缘清楚,肿块密度均匀或不均是腮腺混合瘤的CT表现特点,CT检查对腮腺混合瘤的诊断有重要价值。     

Ultrasound-guided piezoelectric extracorporeal shock wave lithotripsy of parotid gland calculi

PURPOSE: The introduction of piezoelectric extracorporeal shock wave lithotripsy (ESWL) has changed therapy for salivary calculi. This method seems especially suitable for treating calculi in the parotid gland. The purpose of this study was to evaluate ESWL in patients with such calculi. METHODS: From November 1990 to November 1999, all patients with sialolithiasis of the parotid gland were treated with piezoelectric ESWL. Three different lithotriptors were used over the 9-year study period. Results were analyzed according to both the patients' clinical status and follow-up sonograms. RESULTS: In total, 42 patients (21 women, 21 men; mean age, 59 years) were treated with ESWL. The mean follow-up period for all patients was 63 months (range, 7-96 months). After ESWL had been performed, 71% of the patients were completely free of symptoms, and 21% had marked improvement of their symptoms. Sixty-seven percent were completely free of calculi, and 27% had a marked reduction in the size of their calculi. Adverse effects of ESWL included temporary glandular swelling (4 patients), blood-tinged salivary secretions (9 patients), petechiae on the skin surface (3 patients), and parotid abscess (1 patient). CONCLUSIONS: ESWL is an outpatient procedure that can be performed without anesthesia and with scarcely any discomfort for patients. Conventional surgical procedures such as subtotal parotidectomy may be almost entirely replaced by ESWL because of the excellent treatment results and a very low rate of complications associated with ESWL. ESWL should be considered the treatment of choice for parotid calculi.     

腮腺腺淋巴瘤的临床、病理及CT表现

目的 探讨腮腺腺淋巴瘤(Warthin's瘤)的临床、病理及CT表现.方法 回顾性分析经术后病理证实的24例腮腺Warthin's瘤的临床、病理及CT资料.结果 24例患者,男22例,女2例;单发16例,多发8例,共38个病灶,其中31个(81.6％)病灶位于腮腺后下象限.病灶多呈高密度圆形、椭圆形结节或肿块,边缘光整,密度均匀或欠均匀,增强后34个病灶中2个轻度强化,5个中度强化,27个明显强化;17个均匀强化,17个不均匀强化(直径＞2 cm),且10个伴贴边血管征.结论 符合腮腺Warthin's瘤的发病年龄、性别、部位及影像学表现的患者,诊断时应首先考虑Warthin瘤的可能.     

Sonographic findings in methamphetamine-induced ischemic colitis

Ischemic colitis is a clinicopathologic condition that commonly occurs in elderly patients with atherosclerotic disease or diabetes mellitus. Uncommon etiologies include vasculitis and use of drugs such as oral contraceptives, phenobarbital, nasal decongestants, dextroamphetamine, and cocaine. Recent studies have shown sonography and CT to be helpful in the evaluation of the colitides. We report the sonographic and CT findings in an unusual case of methamphetamine-induced ischemic colitis. Sonography and CT revealed diffuse thickening of the large bowel wall. Methamphetamine abuse should be considered in the differential diagnosis of the colitides, particularly in the setting of a young patient with a history of drug use and no other predisposing conditions. © 1998 John Wiley & Sons, Inc. J Clin Ultrasound 26:479–482, 1998.