Table 1.

Data analysis.

Variable	Cases of Internal jugular vein thrombosis
Sex, n(%)
male	24 (42.11%)
female	33 (57.89%)
Mean age, years (range)	50.2 (16–88)
Investigations used, n (%)
US	11 (19.29%)
CT	13 (22.08%)
MRI	2 (3.50%)
US + CT	21 (36.84%)
US + CT + MRI	2 (3.50%)
CT + FDG PET	1 (1.75%)
US + MRI	2 (3.50%)
MRI + Angiography	1 (1.75%)
Veinography + US	1 (1.75%)
Not specified	2 (3.50%)
CT + MRI	1 (1.75%)
Location of IJV thrombosis n, (%)	23 (40.35%)
Left IJV	23 (40.35%)
Right IJV	7 (12.28%)
Bilateral IJV	4 (7.01%)
Not specified	6 (10.52%)
Involvement of other veins n, (%)	2 (3.50$)
Subclavian vein	1 (1.75%)
Subclavian and brachiocephalic	1 (1.75%)
Subclavian and axillary	1 (1.75%)
Subclavian, axillary, and humeral	1 (1.75%)
External jugular	1 (1.75%)
External Jugular and brachiocephalic	1 (1.75%)
Sigmoid sinus	42 (73.68%)
Transverses and sigmoid sinus	19 (33.33%)
None	2 (3.50%)
Associated Factors n, (%) Malignancy	1 (1.75%)
Antiphospholipid syndrome	1 (1.75%)
Homozygous factor V Leiden Mutation, activated factor C resistance and Dengue fever	1 (1.75%)
Homozygous MTHFR mutation and protein C deficiency Protein S deficiency	1 (1.75%)
Septic Pneumonia and HIT	1 (1.75%)
Liver Transplant Ovarian hyperstimulation syndrome	2 (3.50%)
Nephrotic Syndrome	1 (1.75%)
Nitrous Oxide abuse	1 (1.75%)
Hypothyroidism	1 (1.75%)
Substernal Goiter	1 (1.75%)
Laryngeal surgery	1 (1.75%)
None	22 (38.59%)

Clinical Presentation	Case of IJV thrombosis
Neck Swelling	25 (43.85%)
Asymptomatic	4 (7.05%)
Neck Pain	5 (8.77%)
Swelling of the supraclavicular fossa	1 (1.75%)
Chest pain	2 (3.50%)
Facial and upper limb swelling	2 (3.50%)
Swelling of the parotid gland	1 (1.75%)
Fever and dyspnea	2 (3.50%)
Dizziness	1 (1.75%)
Hoarseness	1 (1.75%)
Confusion and fall	1 (1.75%)
Septic shock and encephalopathy	1 (1.75%)
Exacerbation of COPD	1 (1.75%)

Complication	Cases of IJV thrombosis
No complication	48 (84.21%)
Death	2 (3.50%)
Peripheral facial palsy	1 (1.75%)
Pulmonary embolism	2 (3.50%)
Pulmonary HTN	1 (1.75%)
Not specified	3 (5.26%)