Adrenal cyst: a review of the Japanese literature and report of a case

Robotic-assisted left adrenal cystic mass excision in a pregnant patient

A symptomatic adrenal mass diagnosed during pregnancy is a rare clinical scenario. Two primary considerations are the timing of intervention and determining the appropriate surgical approach. Here, we present the case of a young female patient with flank pain, whom on diagnostic imaging, was found to have a large cystic adrenal mass. She was taken for a robotic-assisted resection of her left-sided adrenal mass during the second trimester of pregnancy. Preoperative and postoperative assessment demonstrated a viable intrauterine pregnancy. She tolerated the procedure well and was discharged 5 days later with resolution of her symptoms on follow-up. As one of only three reported cases of robotic adrenal surgery during pregnancy, we demonstrate that a robotic-assisted surgical approach is a viable and durable surgical option under the given clinical circumstances.

Incidentally found cystic lymphangioma of the adrenal gland in an elderly male cadaver

Adrenal cystic lymphangiomas are extremely rare entities that are often identified incidentally, with less than 60 cases reported to date. We found a protruding ovoid mass consisting of a multiloculated cystic lesion within right adrenal gland in the cadaver of a 75-year-old Korean man. The epithelial cells lining the adrenal cyst were diffusely positive for cluster of differentiation 31 and podoplanin, and negative for pan-cytokeratin. The histopathological diagnosis confirmed a cystic lymphangioma arising from the adrenal gland. Post-mortem findings of the present case are discussed based on the clinicopathological features of adrenal cystic lymphangiomas.

Significant growth of adrenal lymphangioma: A case report and review of the literature

INTRODUCTION

Adrenal lymphangiomas are benign malformations of lymphatic vessels of adrenal gland. Adrenal lymphangiomas are very rare, although lymphangiomas are most commonly located in the neck, axillary region and mediastinum.

PRESENTATION OF CASE

A 44-year-old woman presented to the outpatient clinic with dizziness, headache during the last 2 year. We report a significant growth case of an adrenal lymphangioma removed by transperitoneal laparoscopy. At laparoscopy, a well-marginated multicystic lesion was found at suprarenal area with nonviscous, brown colored fluid. The cystic mass was measured as 5.5×3.0cm and histopathological diagnosis was cystic lymphangioma in the right adrenal gland. On immunohistochemical examination, D2-40 cytoplastic staining was positive, whereas calretinin and CD34 were negative, thus, confirming their lymphatic nature. At 11 months of follow up, the patient was recurrence free.

DISCUSSION

Lymphangiomas are benign malformations of lymphatic vessels and subtype of endothelial adrenal cysts. Adrenal cysts are histologically classified into four main groups: endothelial cysts (45%), pseudocysts (39%), epithelial cysts (9%), and parasitic cysts (7%). Endothelial cysts are divided into two subgroups: lymphangiomatous and angiomatous cysts. Lymphangiomatous adrenal cysts are also known as adrenal lymphangioma. Management of larger lesions or lesions causing symptoms may require surgical resection to determine diagnosis or relieve symptoms.

CONCLUSION

Lymphangiomas are most commonly located in the neck, axillary region and mediastinum, which are rare at adrenal gland. Transperitoneal laparoscopic removal of the adrenal lymphangiomas is regarded as a safe, effective and minimally invasive approach. In our case, laparoscopic removal of the tumor was successfully performed via a transperitoneal approach.

Adrenal lymphangioma mimicking renal cyst: a case report and review of the literature

We present a case of a 44-year-old female who was evaluated for left recurrent flank and abdominal pain. Abdominal ultrasonography demonstrated a large cystic mass on the upper pole of the left kidney. Magnetic resonance imaging showed a large, homogenous cystic mass measuring 8.5 × 9.5 cm with well-defined contours, being hypointense on T1-weighted images and hyperintense on T2-weighted images on the upper pole of the left kidney without a distinct plan between adrenal gland. According to clinical and radiological findings, surgical excision was carried out with a subcostal flank incision. Histologic and immunohistochemical examination demonstrates that the definite diagnosis is cystic lymphangioma of the left adrenal gland. Adrenal lymphangioma is a very rare lesion. This is the unique case of an adrenal lymphangioma considered as a renal cyst because of its radiological appearance.

Giant hemorrhagic adrenal pseudocyst in a primiparous pregnancy: report of a case

Adrenal cysts are rare and are usually discovered incidentally during diagnostic imaging, surgery, or autopsy. Most cystic lesions of the adrenal gland are nonfunctioning and become symptomatic when complicated by rupture, hemorrhage, or infection. A 40-year-old woman presented with a history of gradual-onset pain in her left flank region at 20 weeks' gestation. Ultrasound showed a 20-cm cystic mass in her left abdominal cavity. Pertinent laboratory tests were within normal limits. The patient underwent exploratory laparotomy, which revealed a 20 × 15-cm left adrenal cyst; thus, we performed left adrenalectomy with complete excision of the cyst. Histological examination confirmed a hemorrhagic adrenal pseudocyst. The patient had an uneventful postoperative course, and subsequent routine obstetric ultrasound examinations showed normal fetal activity and development until the pregnancy terminated with a stillbirth caused by pre-eclampsia at 34 weeks' gestation. To the best of our knowledge, this is only the 12th reported case of adrenal pseudocyst discovered during pregnancy. We analyze the clinicopathologic findings and discuss the possible association of pregnancy, with special reference to etiopathogenesis, presentation, diagnosis, and treatment.

Laparoscopic management of potentially malignant or complex adrenal cysts abiding by the principles of surgical oncology

BACKGROUND AND PURPOSE

Few articles have illustrated minimally invasive management of potentially malignant adrenal cysts. The aim of this study was to evaluate the feasibility of laparoscopic adrenalectomy for potentially malignant adrenal cysts.

PATIENTS AND METHODS

Eight patients with potentially malignant or complex cysts were treated by laparoscopic adrenalectomy in the past 10 years at our institution. The operative techniques strictly abided by the principles of surgical oncology. The entire adrenal gland, including the cyst, was excised en bloc via a lateral transperitoneal laparoscopic approach and moved into a LapSac bag. After protecting the exterior abdominal surface, we pulled the LapSac's opening out of the periumbilical wound and opened the cyst wall to siphon all the fluid content with a sucker tip dipped into the cyst cavity. Then the remaining cyst components and the adrenal gland were removed with the bag.

RESULTS

All of the laparoscopic operations were successful without intraoperative or postoperative morbidity, open conversion, or mortality. Mean operative time was 135 minutes with minimal blood loss. Mean hospital stay was 3.4 days. Histopathologic examinations revealed five hemorrhagic pseudocysts, two endothelial cysts, and a cystic pheochromocytoma. There was involvement of periadrenal adipose tissues by the chromium-staining tumor cells in the cystic pheochromocytoma, and malignancy could not be excluded. At a mean follow-up of 40 months, all patients were asymptomatic and had no radiographic evidence of recurrence or dissemination.

CONCLUSIONS

To our knowledge, this report represents the largest series of laparoscopic excisions for complex adrenal cysts. This technique is safe and feasible, while maintaining the benefits of minimal invasiveness.

[Two cystic retroperitoneal lesions mimicking adrenal cysts]

Adrenal cysts are uncommon lesions and most of them are found incidentally during abdominal imaging. We report on two benign extraadrenal lesions mimicking adrenal tumors in abdominal imaging. The histopathological investigation of the lesions revealed a foregut duplication cyst of the lesser gastric curvature and an epithelial inclusion cyst (epidermoid cyst) in an intrapancreatic accessory spleen respectively.

Large adrenal pseudocyst presenting with epigastric distress and abdominal distention

OBJECTIVE

We report a patient with a large adrenal pseudocyst presenting with epigastric distress and abdominal distention.

CLINICAL PRESENTATION AND INTERVENTION

A 35-year-old man presented with a 1-year history of nonspecific epigastric distress and abdominal distention. Routine laboratory tests and endocrine function tests were within the normal ranges. Magnetic resonance imaging (MRI) revealed a large left adrenal cyst. Adrenal cyst showed low intensity on T1-weighted MRI images and high density on T2-weighted MRI images. The patient underwent surgery, and the cyst was completely removed. Histological examination showed that the cyst wall consisted of hyalinized fibrous tissue without an epithelial or endothelial lining, and a diagnosis of an adrenal pseudocyst was made. Symptoms resolved after pseudocyst removal.

CONCLUSION

The report showed a patient with adrenal pseudocyst, a rare and uncommon condition that was diagnosed on MR images and confirmed by histology. The epigastric distress and the abdominal distention resolved after the pseudocyst was surgically removed.