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 73–84 of 202 images

Several coiled or twisted capillary apices, including a loop with two turns near the center-left.A double curl among short capillary tips

Several coiled or twisted capillary apices, including a loop with two turns near the center-left.

Borja Gracia Tello

Recorded diagnosis: Inflammatory myopathy

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.31 × 1.30 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 12–29 µm. These are automated estimates, not manually validated measurements.

A capillary right of center has several angular bends, with smaller twists in neighboring hairpin loops.A stepped apex beside straighter loops

A capillary right of center has several angular bends, with smaller twists in neighboring hairpin loops.

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 12–26 µm. These are automated estimates, not manually validated measurements.

A broad S-shaped capillary at the upper right, with smaller curved loops and straighter hairpin capillaries nearby.A broad S-shaped loop beside straighter capillaries

A broad S-shaped capillary at the upper right, with smaller curved loops and straighter hairpin capillaries nearby.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.35 × 1.32 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 12–24 µm. These are automated estimates, not manually validated measurements.

Fine capillaries with mild twists near some right-sided apices. The loops on the left are simpler hairpins.Subtle winding along an ascending nailfold edge

Fine capillaries with mild twists near some right-sided apices. The loops on the left are simpler hairpins.

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 15–30 µm. These are automated estimates, not manually validated measurements.

Broad capillaries with hooked and folded apices, mixed with narrower open hairpin loops.Broad folded apices along the upper row

Broad capillaries with hooked and folded apices, mixed with narrower open hairpin loops.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.31 × 1.30 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 21–45 µm. These are automated estimates, not manually validated measurements.

A capillary with several tight bends near the center, among shorter tortuous loops. Surface debris lies above the vessels.A compact complex coil beneath surface debris

A capillary with several tight bends near the center, among shorter tortuous loops. Surface debris lies above the vessels.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.41 × 1.36 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 13–28 µm. These are automated estimates, not manually validated measurements.

A capillary with two broad bends near the left-center, beside finer elongated hairpin loops.A prominent double bend among finer hairpins

A capillary with two broad bends near the left-center, beside finer elongated hairpin loops.

Borja Gracia Tello

Recorded diagnoses: Antiphospholipid syndrome; Systemic lupus erythematosus

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.35 × 1.32 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 11–22 µm. These are automated estimates, not manually validated measurements.

Numerous short tortuous capillaries, with thicker loops near the center-right and a visible deeper vascular network.Repeated winding loops over a visible plexus

Numerous short tortuous capillaries, with thicker loops near the center-right and a visible deeper vascular network.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.36 × 1.33 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 16–39 µm. These are automated estimates, not manually validated measurements.

Small coiled capillary apices with occasional wider loops. A larger angulated capillary is visible at the far right.Small curled tips across a broad field

Small coiled capillary apices with occasional wider loops. A larger angulated capillary is visible at the far right.

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 9–29 µm. These are automated estimates, not manually validated measurements.

An enlarged, mildly tortuous capillary near the center, beside finer hairpin loops with rounded apices.A broad waving loop along a gently rising row

An enlarged, mildly tortuous capillary near the center, beside finer hairpin loops with rounded apices.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
An oval crossed capillary right of center, among elongated hairpin loops with occasional mild bends.An oval crossed tip beside elongated loops

An oval crossed capillary right of center, among elongated hairpin loops with occasional mild bends.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.28 × 1.28 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 17–34 µm. These are automated estimates, not manually validated measurements.

A broad curved capillary right of center, with finer upright loops nearby. Only a narrow part of the capillary row is visible.A curved loop in a narrow vascular field

A broad curved capillary right of center, with finer upright loops nearby. Only a narrow part of the capillary row is visible.

Borja Gracia Tello

Recorded diagnoses: Antiphospholipid syndrome; Inflammatory myopathy

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.32 × 1.31 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 15–33 µm. These are automated estimates, not manually validated measurements.