Dr. Borja Gracia Tello, MD, PhD

Chair, Scientific Advisory Board

Dr. Borja Gracia Tello, MD, PhD

Professor of Medicine, University of Zaragoza

Dr. Borja del Carmelo Gracia Tello is an internist and academic director of the Unidad de Enfermedades Autoinmunes Sistémicas (Systemic Autoimmune Diseases Unit) at Hospital Clínico Universitario Lozano Blesa (Zaragoza), and Professor of Medicine at the University of Zaragoza. After completing his specialist training in Internal Medicine, he undertook a research fellowship with Prof. David Isenberg at University College London, where he gained advanced expertise in systemic autoimmune diseases and lupus. His clinical and research work focuses on microvascular involvement and connective tissue diseases, with a particular interest in systemic sclerosis, biomarkers of disease activity, and imaging-based tools to improve early diagnosis and risk stratification.

Dr. Gracia Tello has coordinated and participated in multiple national and international research projects, including studies on systemic sclerosis–associated pulmonary arterial hypertension, sarcoidosis, giant cell arteritis, and COVID-19. He is the lead inventor of a project on the digitalisation and automated analysis of nailfold capillaroscopy, developed through the GEAS (Grupo Español de Enfermedades Autoinmunes Sistémicas) of SEMI (Spanish Society of Internal Medicine), and co-author of the CAPI-Score and CAPI-Detect algorithms for quantitative videocapillaroscopy. As Chair of the Scientific Advisory Board, he provides strategic and scientific oversight for Capillaroscopy.com, ensuring that all educational content is rigorous, up-to-date, and aligned with international standards of care.

ORCID: research record and publications

Contributed cases and studies (2)

Guides with credited review

Images in the atlas (202)

Showing 145–156 of 202 images

A giant-appearing capillary on the left and other asymmetrically enlarged loops. A small reddish-brown deposit below may represent a microhemorrhage.A giant-appearing loop with asymmetric neighboring loops

A giant-appearing capillary on the left and other asymmetrically enlarged loops. A small reddish-brown deposit below may represent a microhemorrhage.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.27 × 1.28 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 19–98 µm. These are automated estimates, not manually validated measurements.

Several giant-appearing capillaries with thick rounded apices and curved limbs. A separate granular reddish-brown area lies near the central loops.Repeated giant-appearing loops with irregular contours

Several giant-appearing capillaries with thick rounded apices and curved limbs. A separate granular reddish-brown area lies near the central loops.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope

No recorded physical calibration is available. Giant-capillary morphology is a visual assessment; the ≥50 µm diameter criterion is not confirmed.

Enlarged rounded capillary apices, including one almost circular apex, above finer overlapping vessels.Enlarged rounded apices above overlapping vessels

Enlarged rounded capillary apices, including one almost circular apex, above finer overlapping vessels.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia
Field of view (W × H):
≈ 1.71 × 1.28 mm
A hooked giant-appearing capillary right of center, beside smaller tortuous hairpin loops.A broad hooked loop with giant-capillary appearance

A hooked giant-appearing capillary right of center, beside smaller tortuous hairpin loops.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia Digital Capillaroscope
Field of view (W × H):
≈ 1.71 × 1.28 mm

The field of view uses the supplied Optilia calibration. Giant-capillary morphology is a visual assessment; the ≥50 µm diameter criterion has not been confirmed by individual measurement.

An enlarged capillary with a simple hairpin shape left of center, surrounded by finer loops.One broad open hairpin among fine capillaries

An enlarged capillary with a simple hairpin shape left of center, surrounded by finer loops.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia Digital Capillaroscope
Field of view (W × H):
≈ 1.71 × 1.28 mm
Slender hairpin capillaries with several elongated brown hemorrhagic deposits above the right side.Brown deposits in a short row above slender loops

Slender hairpin capillaries with several elongated brown hemorrhagic deposits above the right side.

Borja Gracia Tello

Magnification:
200×
Broad, folded and branching-appearing capillaries with an elongated brown-red hemorrhage above them.A dark hemorrhagic deposit above complex loops

Broad, folded and branching-appearing capillaries with an elongated brown-red hemorrhage above them.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.26 × 1.27 mm

For nonbranching apices with stable automated measurements, estimated widths span approximately 26–38 µm. These are automated estimates, not manually validated measurements.

Long hairpin capillaries with some enlarged rounded apices. Small brown deposits compatible with microhemorrhages lie near the lower left.Small brown foci beneath long parallel loops

Long hairpin capillaries with some enlarged rounded apices. Small brown deposits compatible with microhemorrhages lie near the lower left.

Borja Gracia Tello

Magnification:
200×
Device:
DinoLite
Hairpin capillaries of different widths with a small curved brown deposit compatible with a microhemorrhage above the center.A single small deposit above a varied capillary row

Hairpin capillaries of different widths with a small curved brown deposit compatible with a microhemorrhage above the center.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.26 × 1.27 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 12–42 µm. These are automated estimates, not manually validated measurements.

Capillaries with rounded apices and tortuous limbs. An elongated hemorrhagic deposit and smaller brown foci lie above the row.Separate hemorrhagic foci along a sloping border

Capillaries with rounded apices and tortuous limbs. An elongated hemorrhagic deposit and smaller brown foci lie above the row.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Mostly fine hairpin capillaries with two separate dark red microhemorrhages above the row.Two dark deposits above mostly fine loops

Mostly fine hairpin capillaries with two separate dark red microhemorrhages above the row.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.34 × 1.32 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 11–28 µm. These are automated estimates, not manually validated measurements.

Enlarged hairpin capillaries and some tortuous loops. Several dark hemorrhagic deposits form short rows above them.Rows of dark deposits above widened hairpins

Enlarged hairpin capillaries and some tortuous loops. Several dark hemorrhagic deposits form short rows above them.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.39 × 1.34 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 17–39 µm. These are automated estimates, not manually validated measurements.