Reaction profile

The FDA adverse-event record for skin lump

1,212 FDA reports name skin lump, a high-volume reaction in the CVM extract (VeDDRA 1191). Plate stamps and neighbourhood peers follow.

#338 of 2,481
by report volume (all reactions)
1,212
reports citing this reaction
10.6%
death-coded share
Dog
most-affected species

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Skin lump has 1,212 reports now versus 1,197 in that prior snapshot: 15 more (1.3%).

Report change
+15
Death-coded reports
+4
Death-coded share
+0.2 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Skin lump changes

FDA AER · VeDDRA plate

Code 1191 VOL-MID

VOL-MID · DEATH-ELEV · UPPER-Q · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-MID 1,212 reports
  • DEATH-ELEV 10.6%
  • UPPER-Q #338/2481
  • PHOTO-FINISH Dry mucous membrane
  • SPECIES-DOG Dog · 1,085
  • DRUG-LEAD Oclacitinib Malea… · 334
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Dry mucous membrane (±12 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Skin lump

Upper-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Dry mucous membrane · near1224Hypersensitivity reac… · near1224Polypnoea · near1224Skin lump · this reaction1212Not sleeping · near1198Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Skin lump

What the FDA AER plate says about Skin lump

Signature read: 1,212 reports place Skin lump in the upper third of FDA AER volume (#338 of 2,481). Report volume is upper-third scale: 1,212 named reports in the openFDA extract. 128 of 1,212 reports were death-coded (10.6% of named reports, not a population mortality rate). Nearest volume peer: Dry mucous membrane (±12 reports). Lead species Dog (1,085). Lead co-reported drug Oclacitinib Maleate (334).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Oclacitinib Maleate appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 1,085
Cat 102
Horse 10
Human 7
Cattle 4
Pig 1
Rabbit 1
Tiger 1
Goat 1

Breeds Most Affected

Retriever - Labrador 121
Crossbred Canine/dog 77
Domestic Shorthair 55
Retriever - Golden 52
Boxer (German Boxer) 52
Shepherd Dog - German 46
Chihuahua 41
Dog (unknown) 36
Shih Tzu 36
Terrier - Bull - American Pit 31

Associated Drugs

Oclacitinib Maleate 334
Milbemycin Oxime + Spinosad 95
Carprofen 68
Anti-Il31 Mab Mcs Lot #1283563 54
Moxidectin 49
Milbemycin Oxime + Praziquantel 48
Afoxolaner 47
Maropitant Citrate 45
Bedinvetmab 45
Fluralaner Chew Tablets 43
Melarsomine Dihydrochloride 38
Prednisone 33
Cefovecin 33
Selamectin 30
Gabapentin 29
Ivermectin + Pyrantel As Pamoate Salt 29
Spinosad 27
Cyclosporine A 25
Cyclosporine 23
Trilostane 21

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Skin lump, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (1,212 here).

Similar death-coded share

Nearest other reactions by death-coded share (10.6% here), distinct from the volume row.

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Skin lump (#338 of 2,481 by report volume); death-coded 10.6%. PlainBreed reaction plate · report volume stamp 1,212 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →