Sudden Loss Of Vision And Finger Clubbing:
Initial Symptom And Sign Of Bronchogenic Carcinoma

Claus Cursiefen, M.D., Anselm Jünemann, M.D, Ulrich Schönherr, M.D., Department of Ophthalmology, University Eye Hospital, Friedrich-Alexander-University Erlangen-Nürnberg, D-91054 Erlangen, Germany (Chairman and Professor: G.O.H. Naumann, M.D.)

 

Claus Cursiefen, M.D., Department of Ophthalmology, University Eye Hospital, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, D-91054 Erlangen, Germany, Tel. *49-9131-8533001, Fax. *49-9131-8534436,
e-mail: claus.cursiefen@augen.med.uni-erlangen.de


Abstract

Purpose: To report on the association of acute unilateral loss of vision and finger clubbing.
Methods:Case report. A 52-year-old male patient presented with acute unilateral loss of vision on OD (light perception). Visual acuity of the left eye was 20/20. The patient was subjectively healthy. General examination revealed bilateral finger clubbing.
Results: Ophthalmologic examination and fluorescence angiogram OU as well as visual field examination on the left side were normal. Cranial CT and MRT revealed a right supra-/parasellar metastasis compressing the optic nerve from above. Further examinations demonstrated an yet unknown large bronchial tumor on the left with secondaries in lung, liver, adrenal and skin (histology of skin metastasis: adenocarcinoma). The patient died within six weeks after initial presentation.
Conclusion: Acute unilateral loss of vision associated with finger clubbing can point to an yet unknown lung carcinoma with metastasis involving the optic nerve.
Key words: Acute loss of vision - finger clubbing - metastasis - optic nerve - lung carcinoma

Case report
A 52-year-old welder complained of sudden unilateral loss of vision overnight. Previously normal visual acuity on OD was light perception (OS: 20/20). Ophthalmologic history was normal. There were no morphological alterations of the right eye with exception of mild macular RPE-irregularities (Fig. 1).

The optic nerve head appeared normal (Fig. 2)

The examination of the other eye including visual field was normal, as were orbital ultrasound and fluorescence angiogram OU. General medical history was unremarkable except for mild hypertonus and smoking (30 pack years).General physical examination revealed finger clubbing (Fig. 3, 4)
  

CCT and MRT displayed a supra-/parasellar tumor involving the right optic nerve (Fig. 5)

and two other cranial tumors. Chest X-ray and CT demonstrated a large bronchial tumor on the left (Fig. 6)

with secondaries in lung, mediastinum, adrenal, liver and skin of the back dorsal to body of thoracic vertebra 12 (histology of skin metastasis: undifferentiated adenocarcinoma). With general physical condition deteriorating rapidly, the patient died within six weeks after initial presentation without definitive histology from bronchoscopy. Permission for autopsy was not granted.

Comment
Ocular metastatic carcinoma occurs in 12 % of patients with extraocular carcinoma with primary tumor usually involving breast (40 %) or lung (30 %; Bloch & Gartner 1971; Fery & Font 1974). An isolated optic nerve metastasis is rare (1.3 % in 227 patients with carcinoma metastatic to the eye/orbit; Fery & Font 1974). Ocular symptoms caused by an optic nerve metastasis can be presenting signs of a lung tumor (Crawford & Reese 1969; Kahan et al. 1965). Here, without histopathologic examination it is unclear whether the tumor affecting the right optic nerve was a direct optic nerve metastasis or a cranial suprasellar metastasis involving the optic nerve. If the ocular symptoms are the initial manifestation of an extraocular carcinoma, primary tumor usually is a bronchial tumor (68 %; Fery & Font 1974). Clubbing occurs in certain heart, lung and gastrointestinal diseases or may be idiopathic/hereditary (Isselbacher et al. 1994). Thirty percent of patients with bronchial carcinoma demonstrate clubbing, sometimes as the initial sign (Isselbacher et al 1994; Baughman et al. 1998). Here, finger clubbing in association with sudden unilateral loss of vision pointed to an yet unknown primary lung cancer with metastasis involving the optic nerve.

References
1   Baughman RP, Gunther KL, Buchsbaum JA & Lower EE (1998): Prevalence of digital clubbing in bronchogenic carcinoma by a new digital index. Clin Exp Rheumatol 16: 21-26
2 Bloch RS & Gartner S (1971): The incidence of ocular metastatic carcinoma. Arch Ophthalmol 85: 673-675
3 Crawford JB & Reese GA (1969): Rapid loss of vision - initial manifestation of bronchogenic carcinoma (a clinicopathologic case report). Trans Am Acad Ophthalmol Otolaryngol 73: 964-968
4 Fery AP & Font RL (1974): Carcinoma metastatic to the eye and orbit. Arch Ophthalmol 92: 276-286
5 Isselbacher KJ, Braunwald E, Wilson JD, Martin JB, Fauci AS & Kasper DL (1994): Harrison's principles of internal medicine, pp 182-183. New York, McGraw-Hill
6 Kahan A, Lelek I & Herboly M (1965): Augensymptome als erste Manifestationen vom Bronchuskarzinom. Klin Monatsbl Augenheilkd 147: 849-857

Figures
Fig. 1  Right fundus photography of the 52-year-old patient 5 days after acute unilateral loss of vision (visual acuity: light perception with strongly positive relative afferent pupillary defect). Focal defects of macular pigment epithelium are present.
Fig. 2 Normal optic disc in the right eye of the patient 5 days after acute unilateral loss of vision. Unilaterality of visual loss points against cancer associated retinopathy (CAR; optic disc area: 3.6 mm2).
Fig. 3 Finger clubbing in the patient with sudden unilateral loss of vision in OD (smoker for 30 pack years). Note selective bullous enlargement of distal segments of fingers and nailfold-/nail-angle > 180° (arrows).
Fig. 4 Detail of fig. 3: Note clubbed fingers and nicotine staining of nails (arrows).
Fig. 5 Cranial CT-scan (axial section after gadolinium-injection). Note contrast enhancement of a lesion with peripheral hyperdensity and central hypodensity in the right supra- and parasellar region involving the optic nerve before its entry into the optic canal (arrows; metastasis). Two other cranial tumors with contrast enhancement were found in the right frontobasal area and in the left highparietal cortex. Cranial magnetic resonance imaging did not provide further information about the association of supra-/parasellar metastasis and right optic nerve.
Fig. 6 CT-scan of the thorax displaying a large left-sided bronchial tumor (arrows) highly suggestive of adenocarcinoma of the lung. Secondaries were found in lung, mediastinum, adrenal, liver and in the skin of the back (histology of skin metastasis: undifferentiated adenocarcinoma).

 


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