Case Reports in Pulmonology
Volume 2018 (2018), Article ID 2406496, 9 pages
https://doi.org/10.1155/2018/2406496

Case Report

Left Functional Pneumonectomy Caused by a Very Rare Giant Intrathoracic Cystic Lesion in a Patient with Gorham–Stout Syndrome: Case Report and Review of the Literature

Nikolaos Tasis,¹ Ioannis Tsouknidas,¹ Argyrios Ioannidis,¹ Konstantinos Nassiopoulos,² and Dimitrios Filippou1,3

¹Department of Anatomy and Surgical Anatomy, Medical School, National and Kapodistrian University of Athens, Athens, Greece
²Hopital Daler, Fribourg, Switzerland
³Department of Surgical Oncology, Laparoscopic Surgery and Laser Surgery, N Athinaio Hospital, Athens, Greece

Correspondence should be addressed to Nikolaos Tasis; tasisnikolaos@gmail.com

Received 14 December 2017; Accepted 18 February 2018; Published 12 April 2018

Academic Editor: Tun-Chieh Chen

Copyright © 2018 Nikolaos Tasis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract.

Gorham–Stout syndrome is an uncommon entity, with few cases reported in bibliography. It consists of osteolytic manifestations affecting various bones and replacing them with lymphangiomatous tissue. With pathophysiology unknown, Gorham–Stout disease affects also cardiorespiratory system usually causing lytic lesions to the bones of the thoracic cage or directly invading the thoracic duct. This is a case report of a unique respiratory manifestation of the disease and a review of its cardiorespiratory complications.

1. Introduction

Gorham–Stout syndrome or vanishing bone disease is a rare entity with very few cases reported in global bibliography. Gorham et al. in 1954 [1] and Gorham and Stout in 1955 [2] firstly described this uncommon form of massive osteolysis. Till today, etiology and pathophysiology of the disease are unknown. The syndrome consists of replacement of normal bone by nonneoplastic vascular tissue, via overgrowth of lymphatic vessels, resulting in an “invisible” hypervascular fibrous bone [3]. The prognosis varies, with some patients achieving stabilization, while others, especially if complicated with pleural effusion, showing high mortality rates [4]. We present a case report of a unique thoracic presentation of Gorham–Stout syndrome and a detailed review of the literature concerning respiratory manifestations and complications of the disease.

2. Case Presentation

In 1997, female patient, 24 years old, presented intense lower back pain. Lumbar spine CT revealed multiple osteolytic lesions in lumbar vertebrae. Further investigation by attending physicians ruled out neoplastic infiltration. Clinical and laboratory exams were normal, except for slightly decreased calcium levels of unknown origin, with normal levels of PTH, so the patient was treated conservatively with NSAIDs and careful medical advice.

In May of 2004, the patient discovered a nodule in left thyroid lobe, which gradually increased in size. Biopsy revealed follicular thyroid cancer, and a total thyroidectomy was performed. Histological exam showed papillary and follicular thyroid cancer. Histological preparation did not consist of any parathyroid gland, although patient suffered from severe hypocalcaemia for many years postoperatively until utterly controlled by attending endocrinologist with administration of calcium and salmon calcitonin. In September of 2004, a large cystic mass was detected in anterior cervical surface, left of the clavicle. Ultrasound revealed a cyst with 4 cm diameter which was surgically removed. Histological exam suggested lymphatic cyst.

In 2007, a relapse was observed and was US monitored for the next months. In 2008, the patient was referred to our department for further investigation. Clinical examination showed the palpable mass in the lower anterior section of the cervix, with 3 cm diameter, increasing in size. Lab tests were normal apart from CPK (250 IU/L), serum phosphorus (5,6 mg/dl), and serum calcium (7,8 mg/dl). Thoracic and Cervical MRI reveal a substantial cystic mass (12,5 × 2,2 × 2,3 cm) in anterior mesothorax. Two similar masses were detected one paratracheal (2,6 × 4 cm) and one in the lower cervix (2,4 × 2 cm), all communicating. Lower and upper abdomen CT showed multiple cystic lesions of the spleen, while full MRI check revealed no change in cystic lesions of lumbar vertebrae, with several similar lesions in whole vertebrae column, the clavicle and both femurs. FNA procedure took place and the sample proved to be lymph. FNA in combination with CT and MRI results indicated Gorham–Stout disease.

Patient continued receiving conservative therapy with calcium and salmon calcitonin and after six months calcium levels became normal and bone density reached normal range, improving by far patient’s quality of life. Mesothorax and spinal cystic lesions were reevaluated regularly and no change in size was noted.

The next two years patient underwent two incidents which were impossible to properly diagnose. The first consisted of an intense headache, which lasted for 15 days during patient’s vacation, with following improvement and the second involved a vision disorder which was examined by an ophthalmologist with no pathology defined.

However, in 2010, the patient was admitted due to intense headache, gradually increasing, affecting patient’s quality of life. Although examination revealed no abnormal findings, the patient was deteriorating. A lumbar puncture took place and showed low cerebrospinal fluid (CSF) pressure (<6). Intravenous fluids were administrated and, later, patient improved and was discharged, only to come two days later with severe temporal and cervical cephalalgia and vertigo. Otorhinolaryngological examination was not pathological and patient was treated conservatively with Sibellium, Lonarid-N, and Tramal tablets. Patient improved but further examination took place. Full-body 3D CT scan with intrathecal radioactive polymer infusion revealed the following: incomplete herniation of the brain stem probably due to low CSF pressure; dilation of endothoracic cyst, with more than 20 cm diameter, fully compressing left lung causing functional left pneumonectomy; and (3) possible communication of CSF with mesothoracic cystic mass (Figures 1(a), 1(b), and 2).

(a)

(b)

Figure 1: A giant cystic lesion occupying almost completely the left side of thorax causing functional pneumonectomy.

Figure 2: MRI of the intrathoracic cystic lesion. Osteolytic lesion in the thoracic vertebrae also obvious.

Surgical excision was undertaken. Patient underwent thoracoscopic excision of the gargantuan cystic mass, with ligation of major lymph vessels, conserving major thoracic duct. No connection between the cyst and spinal cavity was detected, possibly because during the excision procedure the connection was ligated or shut. Patient had a smooth postoperative course and recovery.

3. Discussion

Gorham–Stout syndrome (GSS), also known as Gorham’s syndrome, idiopathic massive osteolysis, disappearing bone, disease or phantom bone disease, is a rare skeletal disorder, characterized by osteolysis of various bones accompanied by proliferative angiomatosis. Almost 180 years have passed since Jackson first presented, in 1838, the case of an 18-year-old boy with idiopathic osteolysis of his right humerus [62]. In 1955, Gorham and Stout, after concentrating and studying all previous similar cases, described “a syndrome of progressive osteolysis associated with an angiomatosis proliferation of blood or lymphatic vessels” [2]. Although over 200 cases have been reported to date [63], there is still a lot to learn about this syndrome.

Gorham–Stout syndrome provokes osteolytic damage to one or multiple bones. It can affect any age, but most commonly children and young adults. Special correlation with specific race, sex, geography, or hereditary pattern has not been identified yet [64]. The shoulder and the pelvis are the most common sites to be affected according to Patel [3]. Femur as more possible first presentation is described by Ruggieri et al. [65] and Hu et al. [66]. Cases of phantom bone disease to the skull, mandible, maxillofacial skeleton, spine, scapula, clavicle, ribs, sternum, humerus, hand, and foot have also been described [3]. In our case lumbar osteolytic lesions may be considered the first sign of Gorham–Stout syndrome. Our patient experienced intense low back pain at the age of 22. The symptom was treated as common back pain and although lesions of lumbar spine were detected, no further investigation was required since neoplastic etiology was ruled out and laboratory tests were normal. Pain was relieved with NSAIDs and the patient continued everyday activity without symptoms for years. Pain is considered to be a frequent atypical symptom of GSS [64], mainly because of lymphangiomatous infiltration of bones. Maillot et al. [67] state that vertebral primary involvement is rare (10%) and associated with a poor prognosis. However, patients tend to be undiagnosed until pathological fracture takes place even if localized pain is present [65]. The fact that Gorham–Stout progression may be asymptomatic reinforces our belief of lumbar spine involvement in our case.

In the course of the case, two years after thyroidectomy, a cystic mass was spotted in lower anterior cervix of the patient. It was identified as a lymphangiomatous cyst and was surgically excised. Six months later, a relapse caused the referral of the patient to our department only to diagnose one large mesothoracic cyst (12,5 × 2,2 × 2,3 cm) with two smaller and one paratracheal (2,6 × 4 cm) cysts and one in the lower cervix (2,4 × 2 cm). In addition, osteolytic lymphangiomatous lesions, common Gorham–Stout syndrome’s manifestations [64], were located in whole vertebrae column, the clavicle, and both femurs as well as in spleen. Patient was treated conservatively with calcitonin and regularly checked. Cysts were monitored and there was no change in size until patient had a thorough investigation for intense cephalalgia. Only then did we come across a unique finding. CT revealed dilation of endothoracic cyst, more than 20 cm in diameter, fully compressing left lung causing functional left pneumonectomy. Also, there was incomplete herniation of the brain stem due to low CSF pressure, probably because of possible communication of CSF with mesothoracic cystic mass, which could not be verified thoracoscopically.

Disease of the bones of the thoracic cage often presents with pleural effusion and/or chylothorax. Chylothorax is present up to 17% of the patients [50] and increases the rate of mortality and morbidity, especially if patients do not undergo surgical intervention [68]. There are 67 confirmed cases of Gorham–Stout syndrome with cardiorespiratory invasion found in the literature (Table 1). Chylothorax was present in 60 of them (89,55%) and was the major presenting symptom in the thorax. In literature we found, also, two cases of nondescript pleural effusion [4, 56], one case of hemothorax [29], one case with hematoma [29], and three cases with bloody pleural effusion [32, 34, 47]. One unusual case of duropleural fistula [47] was noted as well. Concerning more rare cardiac presentations, there were two cases with chylotamponade [41, 52], one with hemochylopericardium [46], and two cases of nondescript pericardial effusion [4, 44] reported in literature. In these 67 cases we only encountered 2 cases of lymphangiomatous cysts [37, 61], one in the mediastinum and one located in right anterior chest wall. Our case is the third with cystic presentation of Gorham–Stout syndrome. However, the fact that the massive lymphangiomatous cyst provoked a functional left pneumonectomy due to its size and position in the mesothorax has not been described previously in Gorham–Stout disease. Usually, the cysts are found and dealt with at early stages or erupt into the pleural cavity causing chylothorax. In this case the cyst reached 20 cm in diameter, caused left functional pneumonectomy, and was identified randomly after CT scan. Our patient underwent surgery and had an uncomplicated recovery. Mortality in Gorham–Stout disease with thoracic cage presentation as reported in the literature is high. Out of 67 cases, 22 did not survive (32,8%). Surgical ligation, pleurodesis, and other surgical or radiological treatments seem to improve survival for patients with these complications [68].

Table 1: Presentation of all cases of patients with respiratory manifestations of Gorham–Stout syndrome reported in the literature.

Number
Author
Year
Age/sex
Hemithorax involved
Pathology
Outcome

Gorham et al. [1]
1954
16/Μ
R
Chylothorax
Died

De seze and Hubault [5]
1956
29/F
Bilateral
Chylothorax
N/A

Jones et al. [6]
1958
28/M
Bilateral
Chylothorax
Died

Koblenzer and Bukowski [7]
1961
4/F
R
Chylothorax
Died

Tucker [8]
1967
11/M
Bilateral
Chylothorax
Survived

Kolpakova and Iaroshevskaia [9]
1967
12/F
Bilateral
Chylothorax
Died

Vanetti et al. [10]
1968
5/F
L
Chylothorax
Survived

Morphis et al. [11]
1970
9 mo/M
Bilateral
Chylothorax
Died

Touraine et al. [12]
1970
49/M
L
Chylothorax
Survived

Takamoto et al. [13]
1971
21/M
R
Chylothorax
Survived

Gutierrez and Spjut [14]
1972
4/M
Bilateral
Chylothorax
Died

Berberich et al. [15]
1975
3.5/M
Bilateral
Chylothorax
Survived

Noziska et al. [16]
1974
14/M
Bilateral
Chylothorax
Died

Fessard et al. [17]
1974
2/F
R
Chylothorax
Died

3/F
Bilateral
Chylothorax
Died

Patrick [18]
1976
30/M
L
Chylothorax
Survived

Rousselin et al. [19]
1977
30/F
L
Chylothorax
Died

Feigl et al. [20]
1981
26/F
Bilateral
Chylothorax
Survived

Young et al. [21]
1983
2/M
R
Chylothorax
Survived

Pedicelli et al. [22]
1984
18/F
L
Chylothorax
Survived

Brown et al. [23]
1986
30/M
Bilateral
Chylothorax
Died

Choma et al. [24]
1987
23/M
R
Chylothorax
Survived

Hejgaard and Olsen [25]
1987
9/M
R
Chylothorax
Survived

Joseph and Bartal [26]
1987
7/F
R
Chylothorax
Died

Marymont [27]
1987
7/F
R
Chylothorax
Died

Romero et al. [28]
1989
61/M
R
Chylothorax
Survived

Meller et al. [29]
1993
7 mo/M
R
Hemothorax
Survived

14/M
R
Hematoma
Survived

Tie et al. [30]
1994
18/M
L
Chylothorax
Survived

Drewry et al. [31]
1994
13/M
L
Chylothorax
Survived

Ng and Wang [32]
1995
63/F
R
Pleural effusion (Blood stained serous fluid)
Died

Riantawan et al. [33]
1996
27/M
Bilateral
Chylothorax
Died

McNeil et al. [34]
1996
21/M
R
Pleural effusion (Bloodstained fluid)
Survived

Aoki et al. [35]
1996
19/F
R
Chylothorax
Survived

Chavanis et al. [36]
2001
45/F
L
Chylothorax
Survived

Yoo et al. [37]
2002
38/M
Bilateral
Chylothorax, Mediastinal cystic mass (with turbid pinkish fluid)
Survived

Fujiu et al. [38]
2002
15/M
Bilateral
Chylothorax
Died

Miller [39]
2002
2/M
R
Chylothorax
Died

Lee et al. [40]
2002
25/F
R
Chylothorax
Survived

Swelstad et al. [41]
2003
31/F
R
Chylothorax, chylotamponade
Survived

Lee et al. [42]
2003
6/F
N/A
Chylothorax
Died

9/F
N/A
Chylothorax
Died

Fontanesi [43]
2003
M
R
Chylothorax
Survived

Takahashi et al. [44]
2005
2/F
L
Chylothorax, Pericardial effusion
Survived

Kren et al. [45]
2005
7/M
L
Chylothorax
Survived

Duffy et al. [46]
2005
31/F
Bilateral
Chylothorax, hemochylopericardium
Survived

Agrawal et al. [47]
2006
25/F
L
Bloody pleural effusion, DPF
Survived

Pfleger et al. [48]
2006
18/M
R
Chylothorax
Survived

Yildiz et al. [49]
2009
6/M
Bilateral
Chylothorax
Survived

Kose et al. [50]
2009
9/F
R
Chylothorax
Survived

De Smet et al. [51]
2010
8/M
L
Chylothorax
Survived

Wijesinghe et al. [52]
2010
50/F
L
Chylothorax, Chylotamponade
Survived

Kuriyama et al. [53]
2010
16/F
L
Chylothorax
Survived

Deveci et al. [54]
2011
6/M
Bilateral
Chylothorax
Died

Brodszki et al. [55]
2011
2.5/M
R
Chylothorax
Survived

4/F
Bilateral
Chylothorax
Survived

Min-Wen et al. [56]
2012
5/F
L
Pleural effusion
Survived

Hopman et al. [57]
2012
12 mo/M
R
Chylothorax
Died

Noda et al. [58]
2013
15/M
R
Chylothorax
Survived

Jayaprakash et al. [59]
2013
9/F
Bilateral
Chylothorax
Died

Maillot et al. [60]
2014
30/F
L
Chylothorax
Survived

Liu et al. [4]
2014
32/F
Bilateral
Pleural effusion, Pericardial effusion
Survived

15/M
Bilateral
Chylothorax
Survived

32/M
Bilateral
Chylothorax
Survived

22/F
L
Chylothorax
Survived

23/M
R
Chylothorax
Survived

Davalos et al. [61]
2015
9/F
R
Large cystic mass, chylothorax
Survived

4. Conclusion

Gorham–Stout syndrome is an uncommon condition. With etiology unknown, diagnosis and treatment remain a challenge. Osteolytic lesions and/or pathological fractures should raise clinical suspicion for GSS. Attention is needed, especially when respiratory complications are present. This case offers a new presentation of the disease and along with past and future cases may contribute to a deeper understanding of this extraordinary clinical entity, the Gorham–Stout Syndrome.

Consent

Written consent of the patient was obtained for publication.

Conflicts of Interest

The authors declare no conflicts of interest.

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